SAE螺纹标准
SAE J1926直螺纹O型环管口规格要求
备注Decimal +0.015+0.4+0.005+0.13Z in-.0000-0.00-0.000-0.00±1Equiv.inin mm in mm deg -21/80.125----5/16-24UNF-2B 0.062 1.60.39100.074 1.90.438110.468120.062 1.60.3589.10.6721712-33/160.18840.15753/8-24UNF-2B 0.125 3.20.39100.074 1.90.5130.468120.062 1.60.42110.70.75191250.1968-41/40.2560.23627/16-2OUNF-2B 0.172 4.40.45411.50.093 2.40.563150.547140.062 1.60.48712.40.8282112-55/160.31380.3151/2-2OUNF-2B 0.23460.45411.50.093 2.40.625160.547140.062 1.60.55140.9062312-63/80.375100.39379/16-18UNF-2B 0.2977.50.512.70.097 2.50.688180.60915.50.062 1.60.61615.60.9692512-81/20.5120.47243/4-16UNF-2B 0.391100.56214.30.1 2.50.875220.68817.50.094 2.40.81120.6 1.1883015-105/80.625160.62997/8-14UNF-2B 0.48412.50.65616.70.1 2.51260.781200.094 2.40.94223.9 1.3443415-123/40.751-1/16-12UN-2B 0.609160.75190.13 3.3 1.25320.906230.094 2.4 1.14829.2 1.6254115-147/80.875200.78741-3/16-12UN-2B 0.719180.75190.13 3.3 1.375350.906230.094 2.4 1.27332.3 1.7654515-1611250.98421-5/16-12UN-2B 0.844210.75190.13 3.3 1.5380.906230.125 3.2 1.39835.5 1.914915-201-1/4 1.2532 1.25981-5/8-12UN-2B 1.078270.75190.132 3.3 1.875480.906230.125 3.2 1.71343.5 2.275815-241-1/2 1.540 1.57481-7/8-12UN-2B 1.312330.75190.132 3.3 2.125540.906230.125 3.2 1.96249.8 2.566515-322250 1.96852-1/2-12UN-2B1.781450.75190.1323.32.75700.906230.1253.22.58765.73.488815mm in 毫米直螺纹O 型环管口规格要求U(5)直径S(2,3)最大P(4)最小O 最小直径K 1. 直径U 和螺纹节径的同心度在0.005英寸(0.13mm)之内，没有径向和螺旋状的刀纹，环形刀纹控制在100 µin (最大2.5 µm ).5.标称管外径仅做参考.根据设计标准不同,可能会有不同.mm in mm J 螺纹最小有效深度D Min Dia mm 螺纹尺寸SAEJ475(ISO R725),SAE 标称大小in mm in mm 英寸管标称外径标称小数 2. 推荐的最大口面深度要足能让扳手紧固螺母3. 如果孔口面是加工面，尺寸Y 和S 不必要4. 要求的钻孔深度要用平底螺丝攻,以满足有效螺纹长度要求,如果用标准丝攻,钻孔深度要相应增加.Y(3)in mm in。
sae螺纹标准中文版
sae螺纹标准中文版SAE螺纹标准中文版。
螺纹是一种常见的连接方式，它广泛应用于机械设备、汽车零部件、航空航天等领域。
而SAE螺纹标准作为国际上通用的标准之一，对于螺纹加工和连接具有重要的指导意义。
本文将对SAE螺纹标准中文版进行详细介绍，希望能够为相关行业的从业人员提供参考和帮助。
SAE螺纹标准中文版主要包括螺纹尺寸、螺距、螺纹角度、公称直径、公称长度等内容。
其中，螺纹尺寸是指螺纹的外径和内径的尺寸，它直接影响着螺纹的加工和连接质量。
螺距则是指螺纹的螺距，它决定了螺纹每一圈的高度，不同的螺距适用于不同的连接需求。
螺纹角度是指螺纹的锥度角度，它也是螺纹加工的重要参数之一。
公称直径和公称长度则是用来表示螺纹的直径和长度的参数，它们在螺纹连接中起着至关重要的作用。
SAE螺纹标准中文版的制定，旨在规范螺纹的加工和连接，提高螺纹连接的质量和可靠性。
它的出现，使得不同国家和地区的螺纹加工和连接达到了统一的标准，有利于提高产品的互换性和通用性。
同时，SAE螺纹标准中文版也为螺纹加工和连接提供了便利，使得相关行业的从业人员能够更加方便地进行螺纹加工和连接。
在实际的应用中，SAE螺纹标准中文版需要严格遵守，特别是在一些对螺纹连接质量要求较高的领域，如航空航天、汽车制造等。
只有严格遵守标准，才能够保证螺纹连接的质量和可靠性。
因此，相关行业的从业人员需要对SAE螺纹标准中文版有一个清晰的了解，并严格按照标准进行操作和加工。
总的来说，SAE螺纹标准中文版对于螺纹加工和连接具有重要的指导意义，它的出现和实施，提高了螺纹连接的质量和可靠性，有利于促进相关行业的发展和进步。
因此，相关行业的从业人员需要深入学习和理解SAE螺纹标准中文版，严格按照标准进行操作和加工，以确保螺纹连接的质量和可靠性，推动相关行业的发展和进步。
SAE J429-1999 中文版 外螺纹紧固件机械性能和材料要求
35
58.6
C33
C39
1 2 3 4
請降請牙參服看條強表考或附割度8 註溝是量、應具2。十力長發字度生針。穴0.等2％頭的型永的久產變品形不的適量用具。長度計算所得的應力。
5 保證荷重測試：這些級數要求僅適用於應力消除之產品。
6
7 8
降級級產服數數品點應25 應級級使以螺材用降栓料級伏和於數強螺組1度絲裝級尺硬的0.寸化2要％華求1補/司4。正～前取3熱/4代處僅。理適是用被於允長許度的小方於式6。in.的產品，牙條則無限制。螺栓、螺絲長度大於
SAE J429:1999
AL
4行要同.4級級級級應意42熱數數數數力，7處℃消淬1455.理(火除級級級180級：時；、和和0℉的溫2S85E級..)主度12。M的級級要最S螺的螺成少螺栓牙栓分為絲、條、不必46螺是螺可須8絲℃絲先使熱無(和加用處87須牙工水理5熱℉條材。(完處)必料。全（理須後沃如。熱再私果級處成田在數理為鐵機牙(1完化械級條全)性，、的沃質淬2，私級上火所田的有後以鐵冷任回製化鍛何火造)，頭影，後以型響回無油的時火須或馬，溫再水車應度熱淬和先最處火其徵少理則他得要。由頭買3製4部方3造℃較確者(薄認6決5的）0。定℉螺，)栓。回、然火螺而溫絲除度必非最須買少執方 級級無數數論在88..任12 級級何的的情螺螺況栓栓之、、下螺螺，絲絲熱和必處牙須理條熱或處必覆理須碳熱(絕完處不全理能沃(在私完氮全田化鐵沃合化私物田)，如鐵以碳化油氮)，或化以水合油淬物火淬或後回氰回火化火，物，回存回火在火溫的溫度情度最況少最下少為完為3成440。2℃7℃(65(800℉0℉)。)。
的 6in.
外螺紋扣件機械性質和材料要求
Mechanical and Material Requirements for Externally Thread Fasteners
SAE短锥管外螺纹
1.0-11.5
1.327
33.71
1.292
32.82
.8132
20.655
.94
23.9
说明：1．表中孔的大小是根据最大内壁强度给定的，未考虑到其它因素。因此，表中D仅供参考。
2．表中尺寸不适用于滚制螺纹。
E13538
发行
5-7-86
ECO
修改
日期
批准
U.S.____日期____
EUROPE____日期____
工程规范
编号：110-6
第1页共2页
发布日期：3/5/86
主题:SAE短锥管外螺纹
范围：
此规范适应于SAE短锥管外螺纹。如果图纸中无特殊要求，短锥管螺纹应遵守如下规范。
标准和规范：
1．这个系列的外螺纹在其小端处长度缩短一个螺距，其他参数完全符合NPTF螺纹规范（ESS 110-4）
2．外螺纹等级为1级。
.681
13.87
17.30
.525
.660
13.34/
16.76
.4851
.4911
12.322
12.474
.28
.41
7.1
10.4
1/2-14
3/4-14
.850
1.060
21.59
26.92
.822
1.031
20.88
26.19
.6409
.6528
16.279
16.581
.56
.72
14.22
JAPAN____日期____
工程规范
编号：110-6
第2页共2页
发布日期：3/5/86
主题:SAE短锥管外螺纹
saej1926-1螺纹标准
SAEJ1926-1螺纹标准是指汽车工程师协会（SAE）发布的用于液压接头螺纹连接的标准。
这一标准在液压系统的设计和制造中扮演着重要的角色，保证了液压接头的互换性和可靠性。
本文将围绕SAEJ1926-1螺纹标准展开讨论，探讨其相关内容和应用。
1. SAEJ1926-1螺纹标准的背景在液压系统中，液压接头通常用于连接管道、软管或其他液压元件。
为了保证液压接头连接的牢固和密封，螺纹设计至关重要。
而SAEJ1926-1螺纹标准作为液压接头螺纹的标准之一，旨在规范液压接头的螺纹参数，确保各个制造商生产的液压接头可以互换使用。
2. SAEJ1926-1螺纹标准的内容SAEJ1926-1螺纹标准细致地规定了液压接头螺纹的参数，包括螺距、螺纹角、螺纹公差等。
其中最主要的特点是采用了O形密封环作为密封元件，这种设计可以提供可靠的密封性能，并且在拧紧过程中不会损坏螺纹。
3. SAEJ1926-1螺纹标准的优势SAEJ1926-1螺纹标准的采用带来了诸多优势。
标准化的螺纹设计保证了液压接头的互换性，不同制造商生产的液压接头可以通用。
O形密封环的设计提高了液压接头的密封性能，减少了泄漏的风险。
另外，SAEJ1926-1螺纹标准还规定了安装扭矩范围，有效避免了因过紧或者过松而引起的螺纹损坏和泄漏问题。
4. SAEJ1926-1螺纹标准的应用SAEJ1926-1螺纹标准被广泛应用于各种液压系统中，包括工程机械、航空航天、汽车制造等领域。
在这些领域中，液压系统扮演着至关重要的角色，而使用符合SAEJ1926-1螺纹标准的液压接头可以提高系统的可靠性和安全性。
SAEJ1926-1螺纹标准作为液压接头螺纹的标准之一，对于液压系统的设计和制造具有重要意义。
其标准化的螺纹设计和O形密封环的应用，确保了液压接头的互换性和可靠性，为液压系统的安全运行提供了保障。
在未来的发展中，SAEJ1926-1螺纹标准将继续发挥重要作用，并不断推动液压技术的进步和创新。
saej1926油口标准
saej1926油口标准
SAE J1926是液压连接件的标准规范，它规定了液压系统中使
用的油口和油封的设计和尺寸。
该标准主要涉及液压连接件的螺纹
接口，包括油口和油封的尺寸、螺纹类型、安装要求等方面的规定。
根据SAE J1926标准，油口一般采用JIC螺纹或者ORB螺纹，
这两种螺纹类型都是常用的液压连接件螺纹标准，能够提供可靠的
密封性能和连接强度。
标准还规定了油口的尺寸范围，以及安装时
需要注意的细节，确保液压系统的安全和可靠运行。
除了油口的设计和尺寸，SAE J1926还规定了油封的要求，包
括油封的材料、尺寸和安装方式等。
这些规定旨在确保液压系统在
高压和高温环境下能够保持良好的密封性能，防止液压油泄漏和系
统失效。
总的来说，SAE J1926标准对液压连接件的设计、尺寸和安装
提出了严格的要求，旨在确保液压系统的安全运行和可靠性。
遵循
该标准可以帮助制造商和用户选择合适的液压连接件，并正确安装
和使用液压系统，从而降低故障率，提高工作效率。
SAE J429-2013中文
外螺纹紧固件机械性能和材料要求
原则性阐述
几个 ISO 898.1 与 SAE J429 的材料等级相当。本标准中表 2 的化学元素与 ISO 898.1 一致，像 8 级的允许用非合金钢。值得关注的一个显著的差异就是 ISO 898.1（2009）与 SAE J429（2012）用来生产 8 级的合金钢和碳钢的含碳量比 10.9 级的含碳量高。另外一个修订就是发现 2011 版的少量错误和不一致的地方。
回火
铬、锰）
5 组 合 4#～
5.1
螺钉 5/8
低碳或 淬火 0.15 0.30 0.025 0.025
中碳钢 回火
0.003 340℃
螺栓
低碳硼 淬火
5.2
1/4～1
螺钉
钢6
0.15 0.25 0.025 0.025 0.0005 0.003 425℃ 回火
8
碳钢（添
9
淬火
4
加硼 、
0.25 0.55 0.025 0.025
U-BOLT：本 SAE 标准所提及的 U 型螺栓，其使用于车辆悬吊装置和其相关位 置。为了详细说明，本标准将 U 型螺栓视为螺柱。因此，文中所提及到的 STUDS （螺柱）字眼都适用于 U-BOLT（U 型螺栓）。（设计者应要了解，在想同尺寸、等 级的 U 型结构的两根螺栓和螺柱可能无法承受荷重；因此，U 型螺栓的实际承载 重量应以鞍型荷重测试方法来判定。）
表 1 包括之机械性能要求是在大约 20℃（68F）之环境温度之下所完成。这 些性能限定于在某一温度界限内，此温度界限需依照所使用材料等级以及温度和 加工流程而定。其它疲劳测试、抗腐蚀、冲击试验等性质，都不在本标准范围内， 然而为确保产品适用于这些额外性能的情况下，最终使用必须承担责任归属。
标准SAE J476-1961 美制干密封管螺纹(NPTF) DRYSEAL PIPE THREADS
SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions.QUESTIONS REGARDING THIS DOCUMENT: (724) 772-8512 FAX: (724) 776-0243TO PLACE A DOCUMENT ORDER; (724) 776-4970 FAX: (724) 776-0790SAE WEB ADDRESS SURFACE VEHICLE 400 Commonwealth Drive, Warrendale, PA 15096-0001STANDARDSubmitted for recognition as an American National StandardJ476aREV.JUN61Issued 1921-03Revised1961-06Superseding J476DRYSEAL PIPE THREADSForeword—This Document has not changed other than to put it into the new SAE Technical Standards Board Format.TABLE OF CONTENTS1.Scope.......................................................................................................................................................22.References...............................................................................................................................................22.1Applicable Publications.............................................................................................................................23.T runcation—Dryseal American Standard External and Internal Pipe Threads ........................................23.1Thread Form.............................................................................................................................................23.2Thread Series Symbols............................................................................................................................23.3Thread Designation..................................................................................................................................23.4Straight Pipe Threads...............................................................................................................................34.Dryseal American Standard Pipe Thread (NPTF)....................................................................................45.Dryseal SAE Short External T aper Pipe Thread (PTF—SAE Short External).........................................56.Dryseal SAE Short Internal T aper Pipe Thread (PTF—SAE Short Internal)............................................67.Dryseal American Standard Fuel Internal Straight Pipe Thread (NPSF).................................................78.Dryseal American Intermediate Internal Straight Pipe Thread (NPSI) (8)Appendix A Supplementary Thread Information..........................................................................................................9Appendix B Chaser and T ap Information...................................................................................................................13Appendix C Dryseal Pipe Thread Gaging..................................................................................................................17Appendix D Special and Fine Dryseal Pipe Threads.................................................................................................41Appendix E Superseded Gage Dimensions and Gaging Practice for 1/8 and 1/4 Size Dryseal Pipe Threads (46)1.Scope—The Dryseal American Standard Taper Pipe Thread, the Dryseal American Fuel Internal Straight PipeThread and the Dryseal American Intermediate Internal Straight Pipe Thread covered by this standard conform with the American Standard ASA-B2.2. The Dryseal SAE-Short T aper Pipe Thread in this standard conforms with the Dryseal American Standard T aper Pipe Thread except for the length of thread, which is shortened for increased clearance and economy of material.The significant feature of the Dryseal thread is controlled truncation at the crest and root to assure metal to metal contact coincident with or prior to flank contact. Contact at the crest and root prevents spiral leakage and insures pressure-tight joints without the use of a lubricant or sealer.Lubricants, if not functionally objectionable, may be used to minimize the possibility of galling in assembly.2.References2.1Applicable Publications—The following publications form a part of the specification to the extent specifiedherein. Unless otherwise indicated the latest revision of SAE publications shall apply.2.1.1SAE P UBLICATIONS—Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001.ASA B2.2—Dryseal Pipe ThreadsSAE Standards Screw Threads3.Truncation—Dryseal American Standard External And Internal Pipe Threads For Pressure-Tight JointsWithout Lubricant Or Sealer3.1Thread Form—The angle between the flanks of the thread is 60 deg when measured on an axial plane andthe line bisecting this angle is perpendicular to the axis of both the taper and straight threads.Diametral taper of tapered threads is 0.75 in. ± 0.06 in. per 12.00 in. of length.Although the crests and roots of the Dryseal threads are theoretically flat, they may be rounded provided their contour is within the limits specified in T able 1.3.2Thread Series Symbols—The identification symbols which have been adopted for designating the variousDryseal Pipe Thread Series are as follows:NPTF for Dryseal American Standard T aper Pipe Thread.PTF—SAE for Dryseal SAE Short T aper Pipe Thread.NPSF for Dryseal American Fuel Internal Straight Pipe Thread.NPSI for Dryseal American Intermediate Internal Straight Pipe Thread.Where: N stands for American Standard [formerly American (National) Standard].P stands for PipeT stands for T aperF stands for FuelS stands for StraightI stands for Intermediate3.3Thread Designation—Dryseal pipe threads are designated by specifying in sequence the nominal size,number of threads per inch, form (Dryseal), and symbol of the thread series.EXAMPLE—1/8—27 DRYSEAL NPTF1/8—27 DRYSEAL PTF—SAE SHORT1/8—27 DRYSEAL NPSF1/8—27 DRYSEAL NPSI3.4Straight Pipe Threads—An assembly with straight internal pipe threads and taper external pipe threads isfrequently more advantageous than an all taper thread assembly, particularly in automotive and other allied industries where economy and rapid production are paramount considerations. Dryseal threads are not used on assemblies in which both components have straight pipe threads.FIGURE 1—4.Dryseal American Standard Taper Pipe Thread (NPTF)—This series applies to both the external and internal threads of all full length and is suitable for pipe joints in practically every type of service. These threads are generally conceded to be superior for strength and seal. Use of the tapered internal thread in hard or brittle materials having thin sections will minimize trouble from fracture. Dimensional data for (NPTF) threads is given in T able 2. See Appendix D for limitations of assembly of NPTF threads with other series Dryseal pipe threads.FIGURE 2—TABLE 1—LIMITS ON CREST AND ROOT TRUNCATIONThreads perin.Depth of Sharp-V Thread, Hin.Truncation Min Formula Truncation Min in.Truncation Max Formula TruncationMax in.Equalivalent Width of Flat (1)Min Formula 1.The major diameter of plug gages and minor diameter of ring gages used for gaging dryseal threads shall be truncated an amount sufficient to produce a flat width as shown in Appendix C, Tables C1-1 to C12-1 inclusive.Equivalent Width of Flat (1)Min in.Equivalent Width of Flat (1)Max Formula Equivalent Width ofFlat (1)Max in.27 Crest 0.032080.047p 0.00170.094p 0.00350.054p 0.00200.108p 0.0040 Root 0.094p0.00350.140p 0.00520.108p 0.00400.162p 0.006018 Crest 0.048110.047p 0.00260.078p 0.00430.054p 0.00300.090p 0.0050 Root 0.078p0.00430.109p 0.00610.090p 0.00500.126p 0.007014 Crest 0.061860.036p 0.00260.060p 0.00430.042p 0.00300.070p 0.0050 Root 0.060p0.00430.085p 0.00610.070p 0.00500.098p 0.007011-1/2 Crest 0.075310.040p 0.00350.060p 0.00520.046p 0.00400.069p 0.0060 Root 0.060p0.00520.090p 0.00780.069p 0.00600.103p 0.0090 8 Crest 0.108250.042p 0.00520.055p 0.00690.048p 0.00600.064p 0.0080(2)2.There is reason to doubt the correctness of the 8 threads per in. flat widths on account of the volume of metal to be displaced.Root 0.055p0.00690.076p0.00950.064p0.00800.088p0.01105.Dryseal SAE Short External Taper Pipe Thread (PTF—SAE Short External) For Assembly With DrysealAmerican Intermediate Internal Straight (Table 6) or Dryseal American Standard Taper (Table 2) Pipe Threads—External threads of this series conform in all respects with the NPTF threads except that the full thread length has been shortened by eliminating one thread from the small end. These threads are primarily intended for assembly with NPSI internal threads but may also be used with NPTF internal threads. They are not designed for and at extreme tolerance limits may not assemble with PTF—SAE Short or NPSF internal threads. Dimensional data for PTF—SAE Short External Threads is given in T able 3. See Appendix D for limitations of assembly of PTF—SAE Short external threads with other series Dryseal pipe threads.FIGURE 3—TABLE 2—BASIC DIMENSIONS OF DRYSEAL AMERICAN STANDARD TAPER PIPE THREAD (1)1.See general specifications preceding tables.For gaging methods, gages, cut thread blanks, taps, drilled hole sizes, hole depths, and full thread lengths, see Appendixes A, B, and C.NPTFSize 1Pitch,P in.2Pitch Diameter at End of External Thread, E 0in.3Pitch Diameter at End of Internal Thread,E 1in.4Hand Engage-ment,L 1in.5Hand Engage-ment,L 1Thread 6Length of Full Thread,(2)L 2in.72.External thread tabulated full thread lengths include chamfers not exceeding one and one-half pitches (threads) length.Length of FullThread (2), L 2Thread8Vanish Threads V Plus FullThreadTolerance PlusShoulderClearance (V + 1p +1/2 p) in.9Vanish Threads V PlusFull Thread Tolerance Pluls Shoulder Clearance (V + 1p + 1/2 p) Thread 10Shoulder Length L 2 + (3p Approx)in.11External Thread for Draw (L 2 - L 1)in.12External Thread for Draw (L 2 - L 1) Thread 13 Length of Internal Full Thread,(3) (L 1 + L 3)in.143.Internal thread tabulated full thread lengths do not include countersink beyond the intersection of the pitch line and the chamfer cone(gaging reference point).Length ofInternal Full Thread (3)(L 1 + L 3) Thread15OD of Fitting, D 2in. 16OD of Pipe,D1/16-270.037040.271180.281180.160 4.320.26117.050.1139 3.0750.37500.1011 2.730.27117.320.3150.3125 1/8 -270.037040.363510.373600.1615 4.360.26397.120.1112 3.0720.37500.1024 2.760.27267.360.4070.405 1/4 -180.055560.477390.491630.2278 4.100.40187.230.1607 2.8920.56250.1740 3.130.39457.100.5460.540 3/8 -180.055560.612010.627010.2404.320.40787.340.15472.7910.56250.16783.020.40677.320.6810.6751/2 -140.071430.758430.778430.320 4.480.53377.470.2163 3.0280.75000.2137 2.990.53437.480.8500.840 3/4 -140.071430.967680.988870.339 4.750.54577.640.2043 2.8600.75000.2067 2.890.55337.75 1.060 1.0501 -11-1/20.08696 1.21363 1.238630.400 4.600.68287.850.2547 2.9290.93750.2828 3.250.66097.60 1.327 1.3151-1/4 -11-1/20.086961.557131.583380.4204.830.70688.130.26203.0130.96880.28683.300.68097.831.6721.6601-1/2 -11-1/20.08696 1.79609 1.822340.420 4.830.72358.320.2765 3.180 1.00000.3035 3.490.68097.83 1.912 1.900 -11-1/20.08696 2.26902 2.296270.436 5.010.75658.700.2747 3.159 1.03120.3205 3.690.69698.01 2.387 2.3752-1/2 -80.12500 2.71953 2.762160.682 5.46 1.13759.100.3781 3.025 1.51560.4555 3.64 1.05708.46 2.893 2.8753 -80.125003.340623.388500.7666.131.20009.600.37813.0251.57810.43403.471.14109.133.5183.5006.Dryseal SAE Short Internal Taper Pipe Thread (PTF—SAE Short Internal) For Assembly With AmericanStandard External Taper Pipe Thread (Table 2)—Internal Threads of this series conform in all respects with the NPTF threads except that the full thread length has been shortened by eliminating one thread from the large end. These threads are primarily intended for assembly with NPTF external threads. They are not designed for and at extreme tolerance limits may not assemble with PTF—SAE Short external threads.Dimensional data for PTF—SAE Short Internal Threads is given in Table 4. See Appendix D for limitations of assembly of PTF—SAE Short internal threads with other series Dryseal pipe threads.T rouble-free assemblies and pressure-tight joints without the use of lubricant or sealer can best be assured where both components are threaded with NPTF (full length) threads. This should be considered before specifying PTF—SAE Short External or Internal Thread.FIGURE 4—TABLE 3—BASIC DIMENSIONS OF DRYSEAL SAE SHORT EXTERNAL TAPER PIPE THREAD (1)1.See general specifications preceding tables.For gaging methods, gages, cut thread blanks, taps, drilled hole sizes, hole depths, and full thread lengths, see Appendixes A, B, and C.PTF—SAE Short Size1Pitch, P in.2Pitch Diameter at End of External Thread,E 0 Shortin.3L 1in.4L 1Thread 5Hand Engage-ment,L 1 Short in.6Hand Engage-ment, L 1 Short Thread 7Length of Full Thread,(2) L 2 Short 82.External thread tabulated full thread lengths include camfers not exceeding one and one-half pitches (threads) lengths.Length of FullThread,(2)L2 Short Thread 9Vanish Threads V Plus Full Thread Tolerance Plus Shoulder Clearance (V + 1p + 1/2 p)in.10Vanish Threads V Plus Full Thread Tolerance Plus Shoulder Clearance (V + 1p + 1/2 p)Thread 11Min ShoulderLength (L 2 Short +2-1/2 p)in.12External Thread for Draw (L 2 Short—L1 Short)in.13External Thread for Draw (L 2 Short—L1 Short)Thread 14 Length of Internal Full Thread,(3) (L 1 Short + 4p)in.153.Internal thread tabulated full thread lengths do not include countersink beyond the intersection of the pitch line and the camfercone (gaging reference point).Length of Internal Full Thread (3),(L 1 Short + 4p)Thread 16 1/16-270.037040.27349 0.160 4.320.1230 3.320.2241 6.050.0926 2.500.31670.1011 2.730.27117.32 1/8 -270.037040.36582 0.1615 4.360.1244 3.360.2268 6.120.0926 2.500.31940.1024 2.760.27267.36 1/4 -180.055560.48086 0.2278 4.100.1722 3.100.3462 6.230.1389 2.500.48510.1740 3.130.39457.10 3/8 -180.055560.615480.2404.320.18443.320.35226.340.13892.500.49110.16783.020.40677.321/2 -140.071430.76289 0.320 4.480.2486 3.480.4623 6.470.1786 2.500.64090.2137 2.990.53437.48 3/4 -140.071430.97214 0.339 4.750.2676 3.750.4743 6.640.1786 2.500.65280.2067 2.890.55337.751 -11-1/20.08696 1.21906 0.400 4.600.3130 3.600.5958 6.850.2174 2.500.81320.2828 3.250.66097.601-1/4 -11-1/20.086961.562560.4204.830.33303.830.61987.130.21742.500.83720.28683.300.68097.831-1/2 -11-1/20.08696 1.80152 0.420 4.830.3330 3.830.63657.320.2174 2.500.85390.3035 3.490.68097.832 -11-1/20.08696 2.27445 0.436 5.010.3490 4.010.66957.700.2174 2.500.88690.3205 3.690.69698.012-1/2 -80.12500 2.72734 0.682 5.460.5570 4.46 1.01258.100.3125 2.50 1.32500.4555 3.64 1.05708.46 -80.125003.348440.7666.130.64105.131.07508.600.31252.501.38750.43403.471.14109.137.Dryseal American Standard Fuel Internal Straight Pipe Thread (NPSF) For Assembly With Dryseal American Standard External Taper Pipe Thread (Table 2)—Threads of this series are straight (cylindrical)instead of tapered. They are generally used in soft or ductile materials which will adjust at assembly to the taper of external threads but may also be used in hard or brittle materials where the section is heavy. These threads are primarily intended for assembly with full length NPTF external taper threads. Dimensional data for NPSF threads is given in Table 5. See Appendix D for limitations of assembly of NPSF internal threads with other series Dryseal pipe threads.TABLE 4—BASIC DIMENSIONS OF DRYSEAL SAE SHORT INTERNAL TAPER PIPE THREAD (1)1.See general specification preceding table.For gaging methods, gages, taps, drilled hole sizes, hole depths, and full thread lengths, see Appendixes A, B, and C.PTF—SAEShort Size1Pitch P in.2Pitch Diameter at End of Internal Thread E 1 Shortin.3L 1in.4L 1Thread 5Hand Engage-ment,(2)L 1 Short62.Internal thread tabulated full thread lengths do not include countersink beyond the intersection of the pitch line and the chamfer cone (gaging reference point).HandEngage-ment,(2)L 1 Short Thread 7Length of Internal Full Thread (2)(L 1 Short + L 3)in.8Length of Internal FullThread (2) (L 1 Short + L 3)Thread9Hole Depth forSAE Short Tap(Table B3)in.10 1/16-270.037040.278870.160 4.320.1230 3.320.2341 6.320.4564 1/8 -270.037040.371290.1615 4.360.1244 3.360.2356 6.360.4578 1/4 -180.055560.488150.2278 4.100.1722 3.100.3389 6.100.6722 3/8 -180.055560.623540.240 4.320.1844 3.320.3511 6.320.6844 1/2 -140.071430.773970.320 4.480.2486 3.480.4629 6.480.8915 3/4 -140.071430.984410.339 4.750.2676 3.750.4819 6.750.91051 -11-1/20.08696 1.233200.400 4.600.3130 3.600.5739 6.60 1.09561-1/4 -11-1/20.08696 1.577950.420 4.830.3330 3.830.5939 6.83 1.11561-1/2 -11-1/20.08696 1.816910.420 4.830.3330 3.830.5939 6.83 1.11562 -11-1/20.08696 2.290840.436 5.010.3490 4.010.60997.01 1.13162-1/2 -80.12500 2.754350.682 5.460.5570 4.460.93207.46 1.68203 -80.125003.380690.7666.130.64105.131.01608.131.76608.Dryseal American Intermediate Internal Straight Pipe Thread (NPSI) For Assembly With Dryseal SAE Short External Taper (Table 3) or American Standard Taper Pipe Thread (Table 2)—Threads of this series are straight (cylindrical) instead of tapered. They are generally used in hard or brittle materials where the section is heavy and where there is little expansion at assembly with the external taper threads. These threads are primarily intended for assembly with PTF—SAE Short External Taper Threads, but will also assemble with full length NPTF External Taper Threads. Dimensional data for NPSI threads is given in T able 6. See Appendix D for limitations of assembly of NPSI internal threads with other series Dryseal pipe threads.TABLE 5—DRYSEAL AMERICAN STANDARD FUEL INTERNAL STRAIGHT PIPE THREAD LIMITS (1)1.See general specifications preceding tables.For gaging methods, gages, taps, drilled hole sizes, hole depths, and full thread lengths, see Appendixes A, B, and C.NPSF Size 1PitchDiameter(2)Max (3),(4)22.The pitch diameter of the tapped hole as indicated by the taper plug gage is slightly larger than the values given due to the gage having to enter approximately 3/8 turn to engage first full thread.3.Column 2 is the E 1 pitch diameter of thread at large end of internal thread (T able 2) plus (largel) 5/8 thread taper.4.Taps specified in T able B4 produce tapped holes to the above limits in cast iron, steel, and brass. In zinc and similar soft metals, they produce tapped holes approximately 0.001 smaller. Plug-gage turns engagement should be reduced accordingly.Pitch Diameter(2)Min (4),(5)35.Column 3 is Column 2 reduced by 1-1/2 turns.Minor Diameter (6)Min 46.As the Dryseal American Standard pipe thread form is maintained, the major and minor diameters of the internal thread vary with the pitch diameter.Desired MinLengthof Full Thread (7)in.57.Internal thread tabulated full thread lengths do not include countersink beyond the intersection of the pitch line and the chamfer cone (gaging reference point).Desired Min Length of Full Thread (7)Thread 6 1/16-270.28030.27680.24820.318.44 1/8 -270.37270.36920.34060.318.44 1/4 -180.49040.48520.44220.478.44 3/8 -180.62570.62050.57760.509.00 1/2 -140.77670.77000.71330.669.19 3/4 -140.98720.98050.92380.669.191 -11-1/21.23651.22841.16000.788.989.Notes9.1Marginal Indicia—The change bar (l) located in the left margin is for the convenience of the user in locating areas where technical revisions have been made to the previous issue of the report. An (R) symbol to the left of the document title indicates a complete revision of the report.PREPARED BY THE SAE SCREW THREADS COMMITTEETABLE 6—DRYSEAL AMERICAN INTERMEDIATE INTERNAL STRAIGHT PIPE THREAD LIMITS (1)1.See general specifications preceding tables.For gaging methods, gages, taps, drilled hole sizes, hole depths, and full thread lengths, see Appendixes A, B, and C.NPSF Size 1Pitch Diamete(2)Max (3),(4)22.The pitch diameter of the tapped hole as indicated by the taper plug gage is slightly larger than the values given due to the gage having to enter approximately 3/8 turn to engage first full thread.3.Column 2 is the same as the E 1 pitch diameter of thread at large end of internal thread (Table 2) minus (small) 3/8 thread taper.4.T aps specified in Table B5 produce tapped holes to the above limits in cast iron, steel, and brass. In zinc and similar soft metals, they produce tapped holes approximately 0.001 smaller. Plug-gage turns engagement should be reduced accordingly.Pitch Diameter (2)Min (3),(5)35.Column 3 is Column 2 reduced by 1-1/2 turns.MinorDiameter (6)Min 46.As the Dryseal American Standard pipe thread form is maintained, the major and minor diameters of the internal thread vary with the pitch diameter.Desired Min Length of Full Thread (7)in.57.Internal thread tabulated full thread lengths do not include countersink beyond the intersection of the pitch line and the chamfer cone (gaging reference point).Desired Min Length of Full Thread (7)Thread 71/16-270.28260.27910.25050.318.44 1/8 -270.37500.37150.34290.318.44 1/4 -180.49380.48860.44570.478.44 3/8 -180.62920.62400.58110.509.00 1/2 -140.78120.77450.71800.669.19 3/4 -140.99170.98500.92830.669.191 -11-1/2 1.24201.23381.16550.788.98APPENDIX ASUPPLEMENTARY THREAD INFORMATIONA.1Terminology—For definitions of terms relating to size of parts, geometrical elements, or dimensions of threads see SAE Standards Screw Threads, Appendix A—Terminology.A.2Dryseal American Standard And SAE Short External Taper Pipe Thread Blanks, Cut ThreadsFIGURE A1—A.2.1Formulas for Diameter and Length of Thread—Basic diameter and length of thread for different sizes givenin T ables 2, 3, and 4, are based on the following formulas:Basic pitch diameter of thread at small end of NPTF External Thread.(Eq. A1)Basic pitch diameter of thread at small end of PTF—SAE Short External Thread.(Eq. A2)Basic pitch diameter of thread at large end of NPTF Internal Thread.(Eq. A3)Basic pitch diameter of thread at large end of PTF—SAE Short Internal Thread.(Eq. A4)Basic length of NPTF external full and effective length thread.(Eq. A5)Basic length of PTF—SAE Short external full and effective length thread.(Eq. A6)Basic length of NPTF internal full and effective length thread = L 1 Basic + L 3E 0D 0.05D 1.1)p+(–=E 0Short D 0.05D 1.037)p+(–=E 1E 00.0625XL 1 Basic )(+=E 1Short E 00.0625XL 1 Short )(+=L 20.8D 6.8)p+(=L 2Short 0.8D 5.8)p+(=Basic length of PTF—SAE Short internal full and effective length thread = L 1 Short + L 3WhereD = outside of diameter of pipe P = pitch of thread in inchesNPSG (for oil and grease cup) is Dryseal American Standard Pipe Thread Form—use NPSF tap drill sizes.The drilled hole sizes given above for Dryseal straight and taper internal pipe threads are the diameters produced by drills which are closest to the minimum minor diameters as shown in Table A2.They represent the diameters of the holes which would be cut with a twist drill correctly ground when drilling a material without tearing or flow of metal. This is approximately the condition obtained when a correctly sharpened twist drill is cutting a hole in SAE 1112 or 1113 steel, or SAE 72 brass. When Dryseal taps are used, these holes produce an acceptable pipe thread with the required thread height.When flat drills are used, the width of the cutting edge may have to be adjusted to produce a hole of the required diameter.When hard metals and other similar materials are to be drilled and tapped, it may be found necessary to use a drill of slightly smaller diameter to produce a hole of a size that will make it possible for the tap to cut an acceptable pipe thread with the required thread height.When soft metals and other similar materials are to be drilled and tapped, it may be found necessary to use a drill of slightly larger diameter to produce a hole of a size that will allow for a flow of the metal or material without loading the tap or tearing the material and make it possible for the tap to produce an acceptable pipe thread with the required thread height.TABLE A1—DIMENSIONS OF DRYSEAL AMERICAN STANDARD EXTERNALTAPER PIPE THREAD BLANKS (CUT THREADS)Size OD at Large End NPTF at L 2 Length D 2PTF—SAE Short at L 2 - 1/2p Length (Basic Thread One Turn Large with Max Truncation)+0.003 - 0.000OD at Small End, A NPTF(Basic Thread Two Turns Large with Max Truncation)+0.003 - 0.000OD at Small End, APTF-SAE Short (Basic Thread 2-1/2 Turns Lare with MaxTruncation)+0.003 - 0.000Chamfer Dia (1), B (Minor Dia (1) atSmall End)1.External pipe threads shall be chamfered from a diameter (rounded to a two-place decimal) obtained by subtracting 0, .016 in. for sizesbelow 1 in. and 0.025 in. for larger sizes from the minimum minor diameter at small end to produce a length of chamfered or partial thread equivalent to 1 to 1-1.2 times the pitch (rounded to a three-place decimal).Min Length fromSmall End to Shoulder, TLNPTFL 2 + (3p Approx)Min Length from Small End to Shoulder, TLPTF-SAE ShortL 2 Short + (2-1/2pApprox)Corner Radius, R Max RecommendedHole Size (2), H2.The hole sizes recommended respresent a desirable maximum, strength of wall being considered. However, as considerations otherthan wall strength frequently control the hole size in specific applications, the recommendations should not be construed as a require-ment of this SAE Standard.1/16-270.3150.3010.3020.230.380.31670.030.12 1/8 -270.4070.3930.3940.320.380.31940.030.19 1/4 -180.5460.5230.5250.42 +0.000.560.48510.060.28 3/8 -180.6810.6580.6600.550.560.49110.060.41 1/2 -140.8500.8200.8220.68 -0.020.750.64090.080.56 3/4 -14 1.060 1.029 1.0310.890.750.65280.080.721 -11-1/2 1.327 1.289 1.292 1.120.940.81320.090.941-1/4 -11-1/2 1.672 1.633 1.636 1.46 +0.000.970.83720.09 1.251-1/2 -11-1/2 1.912 1.872 1.875 1.70 1.000.85390.09 1.472 -11-1/2 2.387 2.345 2.348 2.17 -0.03 1.030.88690.09 1.942-1/2 -8 2.893 2.829 2.833 2.59 1.52 1.32500.12 2.313 -83.5183.4503.4543.211.581.38750.122.91A.3Pipe-Thread Drilled Hole Sizes For Dryseal American Standard Internal Pipe Thread—It should be under-stood that this table of drilled hole sizes is intended to help only the occasional user of drills in the application of this SAE Standard. When internal pipe threads are produced in larger quantities in a particular type of material and with specially designed machinery, it may be found to be more advantageous to use a drilled hole size not given in the table, even one requiring a nonstandard diameter drill size.TABLE A2—PIPE-THREAD DRILLED HOLE SIZESSize Straight Pipe Thread Fuel (NPSF)MinorDia (1)Min 1.Minimum minor diameter for internal straight pipe threads is based upon minimum pitch diameter and minimum truncation and will varywith the pitch diameter.Straight Pipe Thread Fuel (NPSF)Drilled Hole Size +0.003-0.001Straight Pipe Thread Intermediate (NPSI)Minor Dia (2)Min2.NPTF (taper reamed) drilled hole sizes are recommended for taper reaming before tapping. They also are used without taper reaming by taper drilling or allowing the tap to act as a reamer. Thread lengths so produced are designated "Full or Complete Thread" on drawings.Straight PipeThreadIntermediate (NPSI)Drilled Hole Size+0.003-0.001Straight PipeThread DesiredLength of Full Thread Min Straight Pipe Thread Hole Depth for Plug End Tap, Tables B4 and B5Taper Pipe Thread NPTF (Not Reamed)2 FF Thread (3)Minor Dia 2 Thread Small from Large EndMin 3.NPTF (not reamed) drilled hole sizes are recommended for taper tapping without reaming. [NPTF (2 FF thread)] minimum minor diameter two threads small from large end and closest drilled hole sizes are recommended only for low pressure use. [NPTF (4 FF thread)] mini-mum minor diameter four threads small from large end and closest drilled hole sizes are recommended for all pressures. Thread lengths so produced are designated "Effective Thread" on drawings.Taper Pipe Thread NPTF (Not Reamed)2 FFThread (2)Drilled Hole Size+0.003=0.001Taper Pipe Thread NPTF (Not Reamed)4 FFThread (2)Minor Dia4Thread Small from Large End Min Taper Pipe Thread NPTF (Not Reamed)4 FFThread (2)DrilledHole Size +0.003-0.001Taper Pipe Thread NPTF (4)(TaperReamed)Desired Minor Dia at Small End Min 4.Internal pipe threads shall be countersunk 90 deg included angle to a diameter (rounded to a two-place decimal) obtained by adding 0.016 in. for sizes below 1 in. and 0.025 in. for larger sizes to the maximum major diamter at large end.Taper PipeThread NPTF (4)(TaperReamed)DrilledHole Size +0.003-0.001Taper Pipe Thread Desired Length ofFull Thread Min Taper Pipe Thread Hole Depth for Standard Tap, Table B2Countersink 90 Deg x dia (4)1/16-270.24820.25000.25050.25000.310.470.24800.24600.24340.24200.23560.23440.310.560.33 1/8 -270.34060.34370.34290.34370.310.470.34030.33900.33570.33200.32790.32810.310.560.42 1/4 -180.44220.44400.44570.44400.470.720.44170.43750.43480.43000.42410.42190.470.810.55 3/8 -180.57760.57810.58110.57810.500.720.57710.57810.57020.57000.55870.56250.500.810.69 +0.021/2 -140.71330.71870.71800.71870.660.940.71270.70310.70380.69600.68730.68750.66 1.060.85 -0.00 3/4 -140.9238—0.9283—0.660.940.92320.92190.91430.90620.89760.89060.66 1.06 1.061 -11-1/2 1.1600— 1.1655—0.78 1.16 1.1593 1.1562 1.1484 1.1406 1.1290 1.12500.78 1.25 1.341-1/4 -11-1/2——————1.50411.50001.49321.48441.47251.46870.811.311.68+0.031-1/2 -11-1/2—————— 1.7430 1.7344 1.7321 1.7188 1.7115 1.70310.81 1.31 1.922 -11-1/2—————— 2.2170 2.2187 2.2061 2.2031 2.1844 2.18750.81 1.31 2.39 -0.002-1/2 -8—————— 2.6488 2.6406 2.6336 2.6250 2.5983 2.5937 1.25 1.84 2.893 -8——————3.27513.26563.25953.25003.21943.21871.341.913.52。
关于SAE标准螺纹
SAE螺纹和UNF螺纹的区别最近一直在和一些螺纹打交道。
发现SAE和UNF很相似，都属于细牙螺纹。
但是他们之间的区别却没搞清楚过，是否可以互配？都适合使用在什么场合？牙型角度都是多少？两者是否有锥度？有哪位达人能回答的更细点将感激不尽！1、看来楼主根本没有弄清楚这个螺纹，UNF是统一螺纹中的一种细牙螺纹，如3/4-16UU NF，表示公称直径3/4英寸，每英寸16牙，SAE螺纹好象没有这个说法，SAE的美国汽车工程师标准，有时液压元件中有SAE8#油口，其联接螺纹就是3/4-16UNF，楼主应该明白了吧！我知道比如SAE8相当于1/2"的螺纹口径，还有3/4-16 UNF-2B意思是3/4"接口，16牙/英寸，内螺纹。
就是是否可以互配？都适合使用在什么场合？牙型角度都是多少？两者是否有锥度？这些问题有谁能帮帮忙？1、引用第1楼ms365于2009-03-27 15:15发表的 :看来楼主根本没有弄清楚这个螺纹，UNF是统一螺纹中的一种细牙螺纹，如3/4-16UUNF，表示公称直径3/4英寸，每英寸16牙，SAE螺纹好象没有这个说法，SAE的美国汽车工程师标准，有时液压元件中有SAE8#油口，其联接螺纹就是3/4-16UNF，楼主应该明白了吧！我们也做SAE#8螺纹，同行啊！SAE是一个标准，UNF是一种型号吧。
SAE跟AISI，GB一样的概念，但是UNF跟NPT，NPSF是一样的概念吧。
具体UNF的锥度什么的，我公司有本暴大的书可以查，之前没有关注过，不过目前生产的产品UNF不带锥度。
我最近也有接触这种SAE螺纹，以前只听说过ＳＡＥ法兰，难道他们都属于一个标准吗？顺便问下各位大侠，这个ＳＡＥ螺纹为什么特别指出是油口螺纹呢？还有这个ＳＡＥ直螺纹是不是也带有密封圈啊？SAE –世界上致力于发展机动工程技术的第一组织!美国机动工程师协会(Society of Automotive Engineers,简称SAE)成立于1905年,是国际上最大的汽车工程学术组织. 研究对象是轿车,载重车及工程车,飞机,发动机,材料及制造等.SAE所制订的标准具有权威性,广泛地为汽车行业及其他行业所采用,并有相当部分被采用为美国国家标准. 目前SAE已拥有97个国家的超过84,000成员,每年新增或修订600余个汽车方面及航天航空工程方面的标准类文件.通常压力较高场合如果选用直螺纹，必须采用O型圈来密封。
sae-j1926-1 标准
sae-j1926-1 标准
SAE J1926-1标准是关于流体动力和通用端口的尺寸标准，适用于符合ASME B1.1标准的带有英制螺纹的流体动力和通用端口。
这个标准的主要内容包括：
1.符合SAE J1926-1标准的端口可用于不可调节螺柱端部高达63 MPa的工
作压力，以及可调节螺柱端部高达40 MPa的工作压力。
这些工作压力取决于材料、设计、工作条件、应用等因素。
2.符合ISO 1179、ISO 9974和ISO 11926标准的螺纹端口和螺柱端不得用
于液压流体动力应用的新设计。
3.符合SAE J2244的螺纹端口和螺柱端只能用于液压流体动力应用的新设
计。
以上信息仅供参考，如需了解更多信息，建议咨询专业人士或查阅相关文献资料。
SAEJ1199公制外螺纹钢制紧固件机械性能与材料要求中文版
Mechanical and Material Requirements for Metric Externally Threaded Steel Fasteners公制外螺纹钢制紧固件机械性能与材料要求1.Scope 范围1.1 This SAE Standard covers the mechanical and material requirements for eight property classes of steel, externally threaded metric fasteners in sizes M1.6 through M36, inclusive, and suitablefor use in automotive and related applications.本SAE 标准涵盖汽车及相关工业使用，尺寸在M1.6到M36钢铁外螺纹紧固件的八个性能等级的机械性能与材料要求。
1.2 Products included are bolts, screws, studs, U-bolts, preassembled screw and washer assemblies (sems), and products manufactured the same as sems except without washer.产品包括：螺栓、螺钉、螺柱、U型螺栓、预装配的螺钉和垫片组件以及与预装配组件一样加工的无垫圈产品。
1.3 Products not covered are tapping screws, thread-rolling screws, and self-drillingscrews.Mechanical and material requirements for these products are covered in other SAE documents.产品不包括自攻螺钉、自挤螺钉、钻尾螺钉。