公制美制螺纹牙距表精品
螺纹牙距标准
螺纹牙距标准公制美制直径（毫米）牙距（毫米）直径（英寸）牙数（粗/细）每英寸M1.4 0.30 标准0# 80M1.6 0.35 标准1#64 UNCM2 0.40 标准72 UNFM2.5 0.45 标准2#56 UNCM3 0.50 标准64 UNFM4 0.70 标准3#48 UNCM5 0.80 标准56 UNFM6 1.00 标准4#40 UNCM81.25 标准48 UNF1.00 细5#40 UNCM10 1.5 标准44 UNF1.25 细6#32 UNC 1.00 细40 UNFM12 1.75 标准8#32 UNC1.25 细36 UNF1.5 细10#24 UNCM142.00 标准32 UNF1.5 细12# 24 UNCM161.50 细1/4-20 UNCM18 2.50 标准28 UNF2.00 细5/16-18 UNC 1.50 细24 UNFM20 2.50 标准3/8-16 UNC2.00 细24 UNF1.50 细7/16-14 UNCM22 2.50 标准20 UNF2.00 细1/2-13 UNC 1.50 细20 UNFM243.00 标准9/16- 12 UNC 18 UNF2.00 细5/8-11 UNCM273.00 标准18 UNF2.00 细3/4-10 UNCM303.50 标准16 UNF2.00 细7/8-9 UNCM333.50 标准14 UNF2.00 细1”8 UNCM364.00 标准12 UNF3.00 细1-1/8- 7 UNCM423.00 细1-1/4-7 UNC M45 4.50 标准8 UNFM48 5.00 标准1-3/8-6 UNC 3.00 细8 UNFM52 5.00 标准1-1/2-6 UNCM565.50 标准8 UNF4.00 细1-3/4-5 UNCM60 5.50 标准8 UNF螺纹牙距表2009-06-12 09:19螺距（P）：为相邻牙在中径线上对应两点的轴向距离或相邻牙山或牙谷间的距离。
公制、英制、美制螺纹标准钻孔底径
公制标准牙公制幼牙尺寸牙距(MM)底孔直径(MM)尺寸牙距(MM)底孔直径(MM)尺寸牙距(MM)底孔直径(MM)M10.250.7(0.75)M1.10.250.8(0.85)M1.20.250.9(0.95)M1.40.31.1M1.60.351.2(1.25)M1.80.351.4(1.45)M20.41.6M2.20.451.7(1.75)M2.50.452.0(2.05)M30.52.5M3.50.62.9M40.73.3M4.50.753.7M50.84.2M615M716M81.256.8M91.257.8M101.58.5M111.59.5M121.7510.2M14212M16214M182.515.5M202.517.5M222.519.5M24321M27324M303.526.5M333.529.5M36432M39435M424.537.5M454.540.5M48543M52547M565.550.5M2.50.352.1(2.15)M30.352.6(2.65)M3.50.353.1(3.15)M40.53.5M4.50.54M50.54.5M5.50.55M60.755.2M70.756.2M80.757.217M90.758.218M100.759.2191.258.8M110.7510.2110M121111.2510.81.510.5M141131.2512.81.512.5M151141.513.5M161151.514.5M171161.515.5M181171.516.5216M201191.518.5218M22121M241231.522.5222124M251.523.5223126M271.525.5225127M281.526.5226129M301.528.5228327M321.530.52301.531.5M33231330M351.533.51.534.5M36234333M381.536.5M39 1.537.5237336M401.538.5238337M421.540.52403394381.543.51/16601.153/32481.81/8402.65/32323.13/16243.67/32244.41/4205.19/32205.81.520.5220M45243342441尺寸英制标准牙BSW英制幼牙BSF 美制标准牙UNC 美制幼牙UNF 美制幼牙UNEF英制喉牙G,BSP英制锥喉牙Rc,BSPT 美制喉牙NPS 美制锥喉牙NPT英制(tach)牙距(per inch)底孔直径(MM)牙距(per inch)底孔直径(MM)牙距(per inch)底孔直径(MM)牙距(per inch)底孔直径(MM)牙距(per inch)底孔直径(MM)牙距(per inch)底孔直径(MM)牙距(per inch)底孔直径(MM)牙距(per inch)底孔直径(MM)牙距(per inch)底孔直径(MM)5/16186.53/8167.97/16149.31/21210.59/1612121113.511/1611153/4106.513/1610187/8919.25920.751"8221.1/8724.751.1/4727.751.3/8630.51.1/2633.51.5/8535.51.3/45391.7/84.541.55/82"4.544.52.1/44502.1/2456.52.3/43.5623"3.568.5324284.7265.4266.2226.8208.3189.81611.21612.714141415.7512171218.511201121.751023926929832835837.5740743746.5652658.5664.5569.75205.1186.6168149.41310.81212.21113.51016.5919.5822.25725728630.75634539.54.5454.551.5457.25463.5470285.5246.9248.5209.92011.51812.91814.51617.51420.41223.251226.51229.51232.751236325.5327.1328.62810.12811.724132414.752017.52019.252020.752022.252023.751826.751830183318362416.25288.8288.6278.51911.81911.518111915.2519151814.514191418.5141814211424.5142414231428.251130.751130.2511.5291818141411.511.51518.52430278.91135.51139.5113911.53811.53911421145114511.54411.5451149.611571156.511.55611.5571163.31179.111511172.81171.48678681185.5883884美制小牙孔标准牙(NC)美制小牙孔幼牙(NC)牙距(per inch)编号底孔直径(MM)底孔深度(MM)螺纹深度(MM)牙距(per inch)编号底孔直径(MM)底孔深度(MM)螺纹深度(MM)64#1-641.5(1.55)5456#2-561.8(1.85)6448#3-482.175402.3(2.35)8640#5-402.6(2.65)9632#6-322.8(2.85)10732#8-323.511824#10-243.9131024#12-244.51511#4-4080#0-801.2(1.25)4372#1-721.5(1.55)5464#2-641.964562.1(2.15)7548#4-482.48644#5-442.79640#6-402.9(2.95)10736#8-363.511832#10-324.11310#3-5628#12-284.71511制订:审核:日期:公制,英制,美制螺纹标准谢敬锋。
螺纹牙距标准
螺纹牙距标准公制美制直径（毫米）牙距（毫米） 直径（英寸）牙数（粗/细）每英寸M1.4 0.30 标准 0#80 M1.6 0.35 标准 1# 64 UNC M2 0.40 标准 72 UNF M2.5 0.45 标准 2# 56 UNC M3 0.50 标准 64 UNF M4 0.70 标准 3# 48 UNC M5 0.80 标准 56 UNF M61.00 标准 4# 40 UNC M81.25 标准 48 UNF 1.00 细 5# 40 UNC M101.5 标准 44 UNF 1.25 细 6# 32 UNC 1.00 细 40 UNF M121.75 标准 8#32 UNC 1.25 细 36 UNF 1.5 细 10#24 UNC M14 2.00 标准 32 UNF 1.5 细 12# 24 UNC M162.00 标准 28 UNF 1.50 细 1/4- 20 UNC M182.50 标准 28 UNF 2.00 细 5/16- 18 UNC 1.50 细 24 UNF M202.50 标准 3/8- 16 UNC 2.00 细 24 UNF 1.50 细 7/16- 14 UNC M222.50 标准 20 UNF 2.00 细 1/2- 13 UNC 1.50 细 20 UNFM24 3.00 标准 9/16- 12 UNC 18 UNF2.00 细 5/8- 11 UNC M273.00 标准 18 UNF 2.00 细 3/4- 10 UNC M303.50 标准 16 UNF 2.00 细7/8-9 UNCM33 3.50 标准 14 UNF 2.00 细 1” 8 UNC M36 4.00 标准 12 UNF 3.00 细 1-1/8- 7 UNC M42 4.50 标准 8 UNF 3.00 细 1-1/4- 7 UNC M45 4.50 标准 8 UNF M48 5.00 标准 1-3/8- 6 UNC 3.00 细 8 UNF M52 5.00 标准 1-1/2- 6 UNC M56 5.50 标准 8 UNF 4.00 细 1-3/4-5 UNC M605.50 标准8 UNF螺纹牙距表2009-06-12 09:19螺距（P ）：为相邻牙在中径线上对应两点的轴向距离或相邻牙山或牙谷间的距离。
螺纹牙距表
螺纹牙距表螺距（P）：相邻牙在中径线上对应两点的轴向距离或相邻牙山或牙谷间的距离。
1、公制牙距直接以距离（毫米mm）标识。
2、美制或英制是以每1英寸单位内，包含的牙的个数来标识。
3、对统一标准螺纹，直径小于1/4英寸的，以号数来标识。
公制螺纹牙距表美制 统一标准螺纹牙数表公称直径牙距 mm公称直径直径尺寸牙距＝每英寸牙数毫米粗牙细牙号＜ 1/4"英寸 in毫米 mm粗牙 UNC细牙 UNF M10.250.20#0.06 1.524-80 M1.20.250.21#0.073 1.8546472 M1.60.350.22#0.086 2.1845664 M20.40.253#0.099 2.5154856 M2.50.450.354#0.112 2.8454048 M30.50.355#0.125 3.1754044 M40.70.56#0.138 3.5053240 M50.80.58#0.164 4.1663236 M610.7510#0.19 4.8262432 M8 1.25112#0.216 5.4862428 M10 1.5 1.251/4"0.25 6.352028 M12 1.75 1.255/16"0.31257.9381824 M142 1.53/8"0.3759.5251624 M162 1.57/16"0.437511.1131420 M18 2.5 1.51/2"0.512.71320 M20 2.5 1.59/16"0.562514.2881218 M22 2.5 1.55/8"0.62515.8751118 M24323/4"0.7519.051016 M27327/8"0.87522.225914 M30 3.521"125.4812 (M33) 3.521-1/8" 1.12528.575712 M36431-1/4" 1.2531.75712(M39)431-3/8" 1.37534.925612 M42 4.531-1/2" 1.538.1612 (M45) 4.531-3/4" 1.7544.455-M48532"250.8 4.5-自攻螺钉牙距表公称牙距公称AB 牙 A 牙ST1.50.54#2424ST1.90.65#2020ST2.20.86#2018ST2.60.97#1916ST2.9 1.18#1815ST3.3 1.310#1612ST3.5 1.312#1411ST3.9 1.414#1410ST4.2 1.4日本墙板钉ST4.8 1.6公称粗牙细牙ST5.5 1.86#918ST6.3 1.87#916ST8.0 2.18#915ST9.5 2.110#8127英制螺纹－惠氏螺纹牙数表公称直径尺寸牙距＝每英寸牙数无号数英寸 in毫米 mm粗牙 BSW细牙 BSF3/32"0.0938 2.38148-1/8"0.125 3.17540-5/32"0.1563 3.96932-3/16"0.1875 4.76324321/4"0.25 6.3520265/16"0.31257.93818223/8"0.3759.52516207/16"0.437511.11314181/2"0.512.71216 5/8"0.62515.8751114 3/4"0.7519.051012 7/8"0.87522.225911 1"125.4810 1-1/8" 1.12528.57579 1-1/4" 1.2531.7579 1-1/2" 1.538.168 1-3/4" 1.7544.4557 2"250.8 4.57。