螺纹攻牙-钻孔直径对照表
螺纹攻牙-钻孔直径对照表
36.00 36.271 35.814
公制迫牙丝攻钻孔径(挤压丝锥)
规格
精度等级
G1-G6 G7-G8
G9
M1.0*0.25
0.86 0.88 螺孔小径..
M1.1*0.25
0.96 0.98
..
M1.2*0.251.06源自1.08..M1.4*0.3
1.24 1.25
..
M1.6*0.35
1.41 1.43
M27*1.0
26.00 26.153 25.917
M18*2.5 15.50 15.744 15.294
M28*2.0
26.00 26.210 25.835
M20*2.5 17.50 17.744 17.294
M28*1.5
26.50 26.676 26.376
M22*2.5 19.50 19.744 19.294
M33*3.0
30.00 30.252 29.752
M1.1*0.2 0.90 0.921 0.883
M33*2.0
31.00 31.210 30.835
M1.2*0.2 1.00 1.021 0.983
M33*1.5
31.50 31.676 31.376
M1.4*0.2 1.20 1.221 1.183
M5.5*0.5 5.00 5.099 4.959 NO.6-40(3.505) 2.90 3.022 2.820
M6.0*0.75 5.30 5.378 5.188 NO.8-36(4.166) 3.50 3.606 3.404
M6.0*0.5 5.50 5.550 5.400 NO.10-32(4.826) 4.10 4.165 3.963
公司使用螺丝攻牙孔径对照表
公制粗螺纹
规格 标准径 2级牙钻孔径 最大 最小 规格
本表所推选之钻头孔径，是针对攻牙加工时，能够很容易的了解钻孔直径；而依抿市售之标准钻头所选定的，在使用钻头的情 精度有很大的影响，所以使用本表之钻孔径，若有不当之处，应视实际壮况适当的变更钻头直径，本表是依据2级牙
公制细螺纹
标准径 2级牙钻孔径 最大 最小
公制迫牙丝攻钻孔径
规格 精 度 等级 G4-G6 G7-G8 G9
M1.0*0.25 M1.1*0.25 M1.2*0.25 M1.4*0.30 M1.6*0.35 M1.7*0.35 M1.8*0.35 M2.0*0.40 M2.2*0.45 M2.3*0.40 M2.5*0.45 M2.6*0.45 M3.0*0.50 M3.0*0.60 M3.5*0.60 M4.0*0.70 M4.0*0.75 M4.5*0.75 M5.0*0.80 M5.0*0.90 M6.0*1.00 M7.0*1.00 M8.0*1.25 M9.0*1.25 M10*1.50 M11*1.50 M12*1.75 M14*2.00 M16*2.00 M18*2.50 M20*2.50 M22*2.50 M24*3.00 M27*3.00 M30*3.50
11.153 11.520 12.676 13.153 13.676 14.153 14.676 15.153 15.676 16.153 16.210 16.676 17.153 18.210 18.676 19.153 20.210 20.676 21.153 22.210 22.676 23.153 23.210 23.676 24.153 24.676 25.210 25.676 26.153 26.210 26.676 27.153 27.152 28.210 28.676 29.153 30.210 30.676 30.252 31.210 31.676 33.676 33.252 34.210 34.676
螺丝攻牙径对照表(集合版)
最大最小最大最小最大最小规格精度最大最小最大最小最大最小最大最小规格精度最大最小M1.0×0.20.800.8210.783M1.0×0.250.750.7850.729(螺丝牙外径）硬材软材M1.1×0.20.900.9210.883M1.1×0.250.850.8850.829No.0-80(1.524) 1.25 1.305 1.182 # 1 -64G5 1.76 1.68 2.65 2.6M1.2×0.2 1.00 1.0210.983M1.2×0.250.950.9850.929No.1-72(1.854) 1.55 1.612 1.474 #2 -56G4 2.04 1.96 3.25 3.2M1.4×0.2 1.20 1.221 1.183M1.4×0.3 1.10 1.142 1.075No.2-64(2.184) 1.85 1.912 1.756 # 3-48G4 2.35 2.25 3.75 3.7M1.6×0.2 1.40 1.421 1.383M1.6×0.35 1.25 1.321 1.221No.3-56(2.515) 2.1 2.197 2.025 #4 -40G5 2.64 2.54 5.15M1.7×0.2 1.50 1.521 1.483M1.7×0.35 1.35 1.421 1.321No.4-48(2.845) 2.4 2.458 2.271 #5 -40G5 2.97 2.87 6.6 6.5M1.8×0.2 1.60 1.621 1.583M1.8×0.35 1.45 1.521 1.421No.5-44(3.175) 2.7 2.74 2.551 #6 -32G53.22 3.1187.9M2.0×0.25 1.75 1.785 1.729M2.0×0.4 1.60 1.679 1.576No.6-40(3.505) 2.9 3.022 2.82 #8 -32G63.89 3.789.49.3M2.2×0.25 1.95 1.985 1.929M2.2×0.45 1.75 1.838 1.713No.8-36(4.166) 3.5 3.606 3.404 #10 -24G6 4.44 4.310.710.5M2.3×0.25 2.05 2.085 2.029M2.3×0.4 1.90 1.979 1.867No.10-32(4.826) 4.1 4.165 3.963 #12 -24G65.07 4.9612.312M2.5×0.35 2.20 2.221 2.121M2.5×0.45 2.10 2.138 2.013No.12-28(5.846)4.6 4.724 4.496 1/4" -20G75.86 5.7313.713.5M2.6×0.35 2.20 2.321 2.221M2.6×0.45 2.20 2.238 2.1132001/4/28 5.5 5.588 5.36 5/16" -18G77.387.2316.716.5M3.0×0.35 2.70 2.721 2.621M3.0×0.5 2.50 2.599 2.4595/16 -24 6.97.035 6.782 3/8" -16G78.898.7219.519.3M3.5×0.35 3.20 3.221 3.121M3.5×0.6 2.90 3.010 2.8502003/8/248.58.6368.382 7/16" -14G810.410.0222.422M4.0×0.5 3.50 3.599 3.459M4.0×0.7 3.30 3.422 3.2427/16 -209.910.0339.729 1/2" -13G811.9211.72524.8M4.5×0.5 4.00 4.099 3.959M4.5×0.75 3.80 3.878 3.6881/2-2011.511.60711.32928.328M5.0×0.5 4.50 4.599 4.459M5.0×0.8 4.20 4.334 4.1349/16 -1812.913.08112.751 0 -80G5 1.45 1.39M5.5×0.5 5.00 5.099 4.959M6.0×1.0 5.00 5.153 4.9175/8一1814.514.68114.351 1 -72G5 1.7711.7M6.0×0.75 5.30 5.378 5.188M7.0×1.0 6.00 6.153 5.9173/4一1617.517.67817.3232 -64G4 2.06 1.98M6.0×0.5 5.50 5.599 5.459M8.0×1.25 6.80 6.912 6.6477/8一1420.520.67520.27 3 -56G4 2.37 2.29M7.0×0.75 6.30 6.378 6.188M9.0×1.257.807.9127.6471一1223.223.57123.114 4 -48G5 2.68 2.59M7.0×0.5 6.50 6.599 6.459M10×1.58.508.6768.3761-1/8-1226.526.74626.289 5 -44G5 2.99 2.9标准径钻孔径M8.0×1.07.007.153 6.917M11×1.59.509.6769.3761-1/4-1229.529.92129.464 6 -40G5 3.29 3.19最大最小M8.0×0.757.307.3787.188M12×1.7510.3010.44110.1061-3/8-1232.833.09632.639 8 -36G5 3.91 3.81M8.0×0.57.507.5997.459M14×2.012.0012.21011.8351-1/2-123636.27135.81410 -32G6 4.53 4.44 6.5 6.632 6.49M9.0×1.08.008.1537.917M16×2.014.0014.21013.835 12 -28G65.135.038.58.6378.495 M9.0×0.758.308.3788.188M18×2.515.5015.74415.294 1/4" -28G765.9111.411.54911.341M10×1.258.808.9128.647M20×2.517.5017.74417.294 5/16" -24G77.537.421515.05414.846M10×1.09.009.1538.917M22×2.519.5019.74419.294最大最小 3/8" -24G79.18.9918.518.77318.489M10×0.759.309.3789.188M24×3.021.0021.25220.752No.12-32 4.7 4.826 4.623 7/16" -20G810.6210.482424.25923.975M10×0.59.509.5999.459M27×3.024.0024.25223.7521/4 -32 5.6 5.69 5.486 1/2" -20G812.212.0630.230.47130.111M11×1.010.0010.1539.917M30×3.526.5026.77126.2115/16 -327.17.2647.08738.839.13238.772M11×0.7510.3010.37810.188M33×3.529.5029.77129.2113/8 -328.78.8658.66144.845.02544.665M12×1.510.5010.67610.376M36×4.032.0032.27031.6707/16 -2810.210.33810.13556.556.83656.476M12×1.2510.8010.91210.647M39×4.035.0035.27034.6701/2一2811.811.93811.709M12×1.011.0011.15310.9179/16 -2413.213.38613.132规格精度最大最小M12×0.511.5011.59911.4595/8一2414.814.98614.732M1.0×0.25G40.920.89M14×1.512.5012.67612.3763/7一2017.817.95817.678M1.2×0.25G4 1.12 1.09标准径M14×1.013.0013.15312.917最大最小7/8一502121.13320.853M1.4×0.30G4 1.3 1.26M15×1.513.5013.67613.376(螺丝牙外径）1一202424.30824.028M1.6×0.35G4 1.47 1.42M15×1.014.0014.15313.917No.1 -64(1.854) 1.55 1.582 1.425M1.7×0.35G4 1.57 1.52PT 1/16 - 28 6.1 6.2 6.244 6.384M16×1.514.5014.67614.376No.2 -56(2.184) 1.8 1.871 1.695M1.8×0.35G4 1.67 1.62PT 1/8 - 288.18.28.2498.388M16×1.015.0015.15314.917No.3 -48(2.515) 2.1 2.146 1.941M2.0×0.40G4 1.84 1.79PT 1/4 - 1910.71110.96211.174M17×1.515.5015.67615.376No.4 -40(2.845) 2.3 2.385 2.157M2.2×0.45G5 2.04 1.97PT 3/8 - 1914.214.514.44814.658M17×1.016.0016.15315.917No.5 -40(3.175) 2.6 2.697 2.487规格标准径最大最小M2.3×0.40G4 2.14 2.09PT 1/2 - 1417.61817.97918.263M18×2.016.0016.21015.835No.6 -32(3.505) 2.8 2.895 2.642SM1/16 - 80 1.25 1.281 1.211M2.5×0.45G5 2.34 2.27PT 3/4 - 142323.523.37823.663M18×1.516.5016.67616.376No.8 -32(4.166) 3.4 3.53 3.302SM5/64 - 64 1.55 1.593 1.513M2.6×0.45G5 2.44 2.37PT 1- 112929.529.45929.822M18×1.017.0017.15316.917No.10-24(4.826) 3.9 3.962 3.683SM3/32 - 56 1.90 1.936 1.841M3.0×0.50G5 2.82 2.75PT 1-1/4 - 1137.53837.97638.339M20×2.018.0018.21017.835No.12-24(5.486) 4.5 4.597 4.344SM3/32 -100 2.10 2.156 2.081M3.5×0.60G5 3.27 3.19PT 1-1/2 - 1143.44443.86944.232M20×1.518.5018.67618.3761/4 --20(6.35) 5.1 5.257 4.979SM1/8 - 32 2.30 2.393 2.233M4.0×0.70G6 3.72 3.65PT 2 - 1154.955.555.41255.844M20×1.019.0019.15318.9175/16 -18(7.93) 6.6 6.731 6.401SM1/8 - 40 2.50 2.551 2.421M5.0×0.80G6 4.67 4.59M22×2.020.0020.21019.8353/8—16(9.52)88.1537.798SM1/8 - 44 2.50 2.605 2.485M6.0×1.0G7 5.59 5.49M22×1.520.5020.67620.3767/16—14(11.11)9.49.559.144SM1/8 - 48 2.60 2.657 2.547M7.0×1.0G7 6.59 6.49M22×1.021.0021.15320.9171/2—13(12.7)10.811.02310.592SM9/64 - 32 2.70 2.79 2.630M8.0×1.25G77.497.36M24×2.022.0022.21021.8359/16—12(14.28)12.212.44611.989SM9/64 - 40 2.90 2.948 2.818M10×1.50G79.349.22M24×1.522.5022.67622.3765/8—11(15.87)13.612.86813.386 SM11/64 -32 3.50 3.584 3.424M10×1.25G79.499.35M24×1.023.0023.15322.9173/4—10(19.05)16.518.8416.307 SM11/64 -40 3.70 3.742 3.612M12×1.75G811.2311.09 6.7 6.843 6.561M25×2.023.0023.21022.8357/8—9(22.22)19.519.76119.177SM3/16 - 24 3.60 3.658 3.498M12×1.25G911.511.368.78.8488.566M25×1.523.5023.67623.3761—8(25.4)22.222.60621.971SM3/16 - 28 3.80 3.844 3.68411.711.8911.445M25×1.024.0024.15323.9171-1/8-7(28.57)2525.34924.638SM3/16 - 32 3.90 3.98 3.82015.215.39514.95M26×1.524.5024.67624.3761-1/4-728.228.52427.813SM3/16 - 40 4.05 4.138 4.0081919.17218.631M27×2.025.0025.21024.8351-3/8-630.831.11530.353SM7/32 - 32 4.70 4.774 4.6142121.12850.587M27×1.525.5025.67625.3761-1/2-63434.2933.528SM15/64 -28 5.00 5.055 4.87524.524.65824.117M27×1.026.0026.15325.9171-3/4-539.539.82738.964SM1/4 - 24 5.20 5.266 5.08628.228.41827.877M28×2.026.0026.21025.835 2 -4-1/245.245.59344.679SM1/4 - 28 5.40 5.452 5.27230.630.93130.291M28×1.526.5026.67626.376SM1/4 - 40 5.60 5.726 5.59635.235.59238.952M28×1.027.0027.15326.917SM9/32 - 20 5.70 5.824 5.63439.229.59238.952M30×3.027.0027.25226.752SM9/32 - 286.20 6.256 6.0664545.48544.845M30×2.028.0028.21027.835最大最小SM5/16 - 18 6.30 6.444 6.2545151.42850.788M30×1.528.5028.67628.376No.12-32 4.7 4.826 4.623SM5/16 - 24 6.80 6.864 6.674使用绞刀时不用绞刀时5757.29656.656M30×1.029.0029.15328.9171/4 -32 5.6 5.69 5.486SM5/16 - 28 6.907.05 6.8601/16 -27 6.1 6.25 6.35M32×2.030.0030.21029.8355/16 -327.17.2647.087SM11/32 -287.707.8437.6531/8一278.338.438.74M32×1.530.5030.67630.3763/8 -328.78.8658.661SM3/8 - 187.908.0537.8431/4一1810.7211.1311.13英 制 电 器 螺 纹W1 -8W1-1/8 -7W1-1/4 -7螺丝攻牙钻孔径对照表本表依据2级牙制定，由于钻头的形状，精度及被加工材质等对钻孔尺寸精度有很大影响，若有不当之处，应视实际状况适当变更钻头直径PF 2-11钻孔径规格W1/8 -40W5/32 -32W3/16 -24W1/4 -20W5/16 -18W3/8 -16W7/16 -14W1/2 -12W9/16 -12W5/8 -11W3/4 -10W7/8 -9PF 1-11PF 11/8-11PF 11/2-11PF 13/4-11PF 3/8-19PF 1/2-14PF 5/8-14PF 3//4-14PF 7/8-14标准径PF 规格新规格G PF 1/16 - 28PF 1/8-28PF 1/4-19英制螺纹不用绞刀时有交牙部之长度（最小）中之毋螺牙内径公制细螺纹美制粗牙螺纹规格（UNC)规格标准径2级牙钻孔径公制粗螺纹标准径2级牙钻孔径美制特细牙螺纹UNF PS 1/2 - 14PS 3/4 -14PS 1 - 11PS 1-1/4 - 11PS 1-1/2 - 11PS 规格新规格Rp PS 1/16 - 28PS 1/8 - 28PS 1/4 - 19规格（UNFF)规格标准径2级牙钻孔径公制迫牙丝攻钻孔径美制迫牙丝攻钻孔径标准径2级牙钻孔径N P TN P S2级牙钻孔径标准径规格（UNF)规格标准径美制管螺纹钻孔径最大最小针车用螺纹美制特粗螺纹UNC美制细牙螺纹规格 （UNF)标准径2级牙钻孔径PT 规格新规格Rc标准长度（最小）中之毋螺牙内径使用绞刀时PS 2 - 11PS 3/8 - 19PF 11/4-11英制管螺纹滚造径4.0-4.2规格2BA 3BA3.0-3.22.7-2.82.4-2.54BA 5BA 6BA。
螺丝攻牙钻孔底径对照表
螺丝 攻牙 钻孔 径和 滚造 径对 照表
时间:201003-02 16:18来源: 未知 作 者:admin 点击: 143 次
本表所推选之钻头孔径，是针对攻牙加工时，能够很容易的了解钻孔直径；而依抿市售之标 准钻头所选定的，在使用钻头的情况下，由于钻头的形状及尺寸、精度、被钻孔之材质等，对 于所钻孔的尺寸.
M1.0*0.2
0.8 0.821 0.783
M1.1*0.2
0.9 0.921 0.883
M1.2*0.2
1 1.021 0.983
M1.4*0.2
1.2 1.221 1.421 1.383
M1.7*0.2
1.45
1.5 1.46
M1.8*0.2
1.6 1.621 1.583
M3.0*0.5 0 M3.0*0.6 0 M3.5*0.6 0 M4.0*0.7 0 M4.0*0.7 5 M4.5*0.7 5 M5.0*0.8 0 M5.0*0.9 0 M6.0*1.0 0 M7.0*1.0 0 M8.0*1.2 5 M9.0*1.2 5 M10*1.50 M11*1.50 M12*1.75 M14*2.00 M16*2.00 M18*2.50 M20*2.50 M22*2.50 M24*3.00 M27*3.00 M30*3.50
--
1/2 - 13
-
No 2 -
64UNF
No 3 - 56
4.9 4.96 -
5.72 -
7.24 -
8.74 8.81
10.2 10.3
11.27 11.82
超全螺纹攻牙钻孔直径和滚造直径对照表
M27×3.0
24.00
24.252
23.752
M30×3.5
26.50
26.771
26.211
公 制 细 螺 纹
规格
标准径
2级牙钻孔径
最大
最小
M1.0×0.2
0.80
0.821
0.783
M1.1×0.2
0.90
0.921
0.883
M1.2×0.2
1.00
1.021
0.983
M1.4×0.2
M24×1.0
23.00
23.153
22.917
M25×2.0
23.00
23.210
22.835
M25×1.5
23.50
23.676
23.376
M25×1.0
24.00
24.153
23.917
M26×1.5
24.50
24.676
24.376
M27×2.0
25.00
25.210
24.835
M27×1.5
M5.0×0.8
4.56
4.60
4.64
M6.0×1.0
5.45
5.50
5.55
M7.0×1.0
6.45
6.50
6.55
M8.0×1.25
7.31
7.38
7.44
M10×1.5
9.18
9.25
9.32
M10×1.25
9.31
9.38
9.44
M12×1.75
11.04
11.12
11.21
M12×1.25
NO.0-80(1.524)
螺丝攻牙孔径对照表
M12*1.0 M12*0.5 M14*1.5 M14*1.0 M15*1.5 M15*1.0 M16.1.5 M16*1.0 M17*1.5 M17*1.0 M18*2.0 M18*1.5 M18*1.0 M20*2.0 M20*1.5 M20*1.0 M22*2.0 M22*1.5 M22*1.0 M24*2.0 M24*1.5 M24*1.0 M25*2.0 M25*1.5 M25*1.0 M26*1.5 M27*2.0 M27*1.5 M27*1.0 M28*2.0 M28*1.5 M28*1.0 M30*3.0 M30*2.0 M30*1.5 M30*1.0 M32*2.0 M32*1.5 M33*1.0 M33*2.0 M33*1.5 M35*1.5 M36*3.0 M36*2.0 M36*1.5
10.917 11.400 12.376 12.917 13.376 13.917 14.376 14.917 15.376 15.917 15.835 16.976 16.917 17.835 18.376 18.917 19.835 20.376 20.917 21.835 22.376 22.917 22.835 23.376 23.917 24.376 24.835 25.376 25.917 25.835 26.376 26.917 26.752 27.835 28.376 28.917 29.835 30.376 29.752 30.835 31.376 33.376 32.752 33.835 34.376
1.25 1.55 1.85 2.10 2.40 2.70 2.90 3.50 4.10 4.60 5.50 6.90 8.50 9.90 11.50 12.90 14.50 17.50 20.50 23.20 26.50 29.50 32.80 36.00
标准螺丝攻牙钻孔径对照表【大全】
标准公制螺母攻牙要钻个小于螺纹大径的孔来攻牙。
这个孔的大小就是螺纹小径到螺纹中径。
如何确认孔径大小就要参照对照表啦,一起来看看吧！螺丝攻牙钻孔径对照表- 14 (3.175) 1- 11 30.20 30.472 30.111NO.6 - 32(3.505)2.80 2.895 2.6421-1/4 -11 38.80 39.133 38.771NO.8 - 32(4.166)3.40 3.530 3.3021-1/2 -11 44.70 45.026 44.664NO.10 -24(4.826)3.90 3.962 3.6832- 11 56.50 56.837 56.475NO.12 -24(5.486)4.50 4.597 4.3441/4 - 20 5.10 5.257 4.979英制管螺纹5/16 - 18 6.60 6.731 6.401 PF规格(新规格G) 标准径最大最小3/8 - 16 8.00 8.153 7.7987/16 - 14 9.40 9.550 9.1441/16 -286.70 6.843 6.561 1/2 - 13 10.90 11.023 10.592 1/8- 288.70 8.848 8.566 9/16 - 12 12.20 12.446 11.989 1/4- 1911.70 11.89 11.445 5/8 - 11 13.60 13.868 13.386 3/8- 1915.20 15.395 14.950 3/4 - 10 16.60 16.840 16.3071/2 - 14 19.00 19.172 18.6317/8- 919.60 19.761 19.177中之毋螺牙径1/16 -6.10 6.20 6.244 6.384281/8 -8.10 8.20 8.249 8.388281/4 -10.70 11.00 10.962 11.174193/8 -14.20 14.50 14.448 14.658191/2 -17.60 18.00 17.979 18.263143/4 -23.00 23.50 23.378 23.66314129.00 29.50 29.459 29.822- 111-1/4 -37.50 38.00 37.976 38.339111-1/2 -43.40 44.00 43.869 44.23211254.90 55.50 55.412 55.844- 11美制管螺纹针车用螺纹规格钻孔径规格标准径最大最小N P TN P SSM1/16 - 80 1.25 1.281 1.211使用绞刀时不用绞刀时SM5/64 - 64 1.55 1.593 1.5131/16 -275.946.15 6.35 SM3/32 - 56 1.90 1.936 1.841 1/8- 278.33 8.43 8.74 SM3/32 -100 2.10 2.156 2.081 1/4- 1810.72 11.13 11.13 SM1/8 - 32 2.30 2.393 2.233 3/8- 1814.27 14.27 14.68 SM1/8 - 40 2.50 2.551 2.421 1/2- 1417.48 17.86 18.26 SM1/8 - 44 2.50 2.605 2.485 3/4-1422.63 23.01 23.42 SM1/8 - 48 2.60 2.657 2.5471-11-1/228.58 28.98 29.36 SM9/64 - 32 2.70 2.79 2.6301-1/4 -11-1/237.31 37.69 38.10 SM9/64 - 40 2.90 2.948 2.8181-1/2-11-1/2 43.26 43.66 44.45SM11/64-323.50 3.584 3.4242-11-1/2 55.17 55.58 56.36SM11/64-403.70 3.742 3.612SM3/16 - 24 3.60 3.658 3.498英制螺纹SM3/16 - 28 3.80 3.844 3.684 规格钻孔径SM3/16 - 32 3.90 3.98 3.820 硬材软材SM3/16 - 40 4.05 4.138 4.008 W 1/8- 402.65 2.60 SM7/32 - 32 4.70 4.774 4.614 W 5/32- 323.25 3.20 SM15/64 -28 5.00 5.0554.875 W 3/16- 243.75 3.70 SM1/4 - 24 5.20 5.266 5.086 W 1/4- 205.10 5.00 SM1/4 - 28 5.40 5.452 5.272 W 5/16- 186.60 6.50 SM1/4 - 40 5.60 5.726 5.596 W 3/8- 168.00 7.90 SM9/32 - 20 5.70 5.824 5.634 W 7/16- 149.40 9.30 SM9/32 - 28 6.20 6.256 6.066 W 1/2- 1210.70 10.50 SM5/16 - 18 6.30 6.444 6.254 W 9/16- 1212.30 12.00 SM5/16 - 24 6.80 6.864 6.674W 5/813.70 13.50 SM5/16 - 28 6.90 7.05 6.860 - 11W 3/416.70 16.50 SM11/32 -28 7.70 7.843 7.653 - 10W 7/819.50 19.30 SM3/8 - 18 7.90 8.053 7.843 - 9W 122.40 22.00 SM3/8 - 28 8.50 8.637 8.447 - 825.00 24.00 SM7/16 - 16 9.30 9.44 9.220 W1-1/8- 728.30 28.00 SM7/16 - 28 10.10 10.224 10.034 W1-1/4- 7W 5/166.60 6.50 SM1/2 - 12 10.30 10.42 10.180 - 18W 3/88.00 7.90 SM1/2 - 20 11.30 11.41 11.190 - 16W 7/169.40 9.30 SM1/2 - 28 11.70 11.812 11.622 - 14W 1/210.70 10.50 SM9/16 - 20 12.90 13.018 12.778 - 12W 9/16 12.30 12.00- 12W 5/8- 1113.70 13.50W 3/4- 1016.70 16.50W 7/8- 919.50 19.30W 1- 822.40 22.00W1-1/8- 725.00 24.00W1-1/4- 728.30 28.00公制迫牙丝攻钻孔径美制迫牙丝攻钻孔径规格精度最大最小规格精度最大最小M1.0×0.25 G4 0.92 0.891-64UNCG5 1.76 1.68M1.2×0.25 G4 1.12 1.092-56G4 2.04 1.96M1.4×0.30 G4 1.3 1.263-48G4 2.35 2.250.80 -80UNC M6.0×1.0 G7 5.59 5.491-72G5 1.77 11.7M7.0×1.0 G7 6.59 6.492-64G4 2.06 1.98M8.0×1.25 G7 7.49 7.363-56G4 2.37 2.29M10×1.50 G7 9.34 9.224-48G5 2.68 2.59M10×1.25 G7 9.49 9.355-44G5 2.99 2.9M12×1.75 G8 11.23 11.096-40G5 3.29 3.19M12×1.25 G9 11.5 11.368-36G5 3.91 3.8110 -32 G6 4.53 4.44英制电器螺纹12 -28 G6 5.13 5.03 规格钻孔径1/4" -28 G7 6 5.91 2BA 4.0-4.2 5/16" -24 G7 7.53 7.42 3BA 3.4-3.6 3/8" -24 G7 9.1 8.99 4BA 3.0-3.2 7/16" -20 G8 10.62 10.48 5BA 2.7-2.8 1/2" -20 G8 12.2 12.06 6BA 2.4-2.5扩展资料：攻丝方法：攻丝是用一定的扭矩将丝锥旋入要钻的底孔中加工出内螺纹。
螺丝攻牙钻孔径和滚造径对照表
0.785 0.885 0.985 1.142 1.321 1.421 1.521 1.679 1.838 1.979 2.138 2.238 2.599 2.440 3.010 3.422 3.326 3.878 4.334 4.170 5.153 6.153 6.912 7.912 8.676 9.676 10.441 12.210 14.210 15.744 17.744 19.744 21.252 24.252 26.771
标准径 2级牙钻孔径 最大 最小
公制迫牙丝攻钻孔径
规格 精 度 等级 G4-G6 G7-G8 G9
M1.0*0.25 M1.1*0.25 M1.2*0.25 M1.4*0.30 M1.6*0.35 M1.7*0.35 M1.8*0.35 M2.0*0.40 M2.2*0.45 M2.3*0.40 M2.5*0.45 M2.6*0.45 M3.0*0.50 M3.0*0.60 M3.5*0.60 M4.0*0.70 M4.0*0.75 M4.5*0.75 M5.0*0.80 M5.0*0.90 M6.0*1.00 M7.0*1.00 M8.0*1.25 M9.0*1.25 M10*1.50 M11*1.50 M12*1.75 M14*2.00 M16*2.00 M18*2.50 M20*2.50 M22*2.50 M24*3.00 M27*3.00 M30*3.50
M12*1.0 M12*0.5 M14*1.5 M14*1.0 M15*1.5 M15*1.0 M16.1.5 M16*1.0 M17*1.5 M17*1.0 M18*2.0 M18*1.5 M18*1.0 M20*2.0 M20*1.5 M20*1.0 M22*2.0 M22*1.5 M22*1.0 M24*2.0 M24*1.5 M24*1.0 M25*2.0 M25*1.5 M25*1.0 M26*1.5 M27*2.0 M27*1.5 M27*1.0 M28*2.0 M28*1.5 M28*1.0 M30*3.0 M30*2.0 M30*1.5 M30*1.0 M32*2.0 M32*1.5 M33*1.0 M33*2.0 M33*1.5 M35*1.5 M36*3.0 M36*2.0 M36*1.5
螺丝攻牙钻孔径和滚造径对照表
精度等级 G4－G6 G7－G8 G9
0.86 0.88 0.96 0.98 1.06 1.08 1.24 1.25 1.41 1.43 1.51 1.53 1.61 1.63 1.78 1.80 1.95 1.98 2.08 2.10 2.25 2.28 2.35 2.38 2.73 2.75 3.17 3.20 3.62 3.65 3.69 4.56 4.60 4.64 5.45 5.50 5.55 6.45 6.50 6.55 7.31 7.38 7.44 9.18 9.25 9.32 9.31 9.38 9.44 11.04 11.12 11.21 11.31 11.38 11.44
公制粗螺纹
公制细螺纹
无沟丝攻钻孔径
英制螺纹
美制粗螺纹
规格
标准径
2级牙钻孔径 最大 最小
规格
标准径
M1.0×0.25 M1.1×0.25 M1.2×0.25 M1.4×0.30 M1.6×0.35 M1.7×0.35 M1.8×0.35 M2.0×0.40 M2.2×0.45 M2.3×0.40
0.75 0.85 0.95 1.10 1.25 1.35 1.45 1.60 1.75 1.90
0.785 0.885 0.985 1.142 1.321 1.421 1.521 1.679 1.838 1.979
0.729 0.829 0.929 1.075 1.221 1.321 1.421 1.567 1.713 1.867
M12×1.00 M12×0.50 M14×1.50 M14×1.00 M15×1.50 M15×1.00 M16×1.50 M16×1.00 M17×1.50 M17×1.00
28.210 27.835
超全螺纹攻牙钻孔直径和滚造直径对照表,值得收藏!
M17×1.0
16.00
16.153
15.917
M18×2.0
16.00
16.210
15.835
M18×1.5
16.50
16.670
16.376
M18×1.0
17.00
17.153
16.917
M20×2.0
18.00
18.210
17.835
M20×1.5
18.50
18.676
18.376
39.50
39.827
38.964
2 -4-1/2
45.20
45.593
44.679
英制螺纹
规格
钻孔径
硬材
软材
W1/8 - 40
2.65
2.60
W5/32 - 32
3.25
3.20
W3/16 - 24
3.75
3.70
W1/4 - 20
11.938
11.709
9/16 -28
13.20
13.386
13.132
5/8 -24
14.80
14.986
14.732
3/4 -20
17.80
17.958
17.678
7/8 -20
21.00
21.133
20.853
1 -20
24.00
24.308
24.028
美 制 粗 螺 纹
规格(UNC)
标准径
1.40
1.421
1.383
M1.7×0.2
1.45
1.500
1.460
M1.8×0.2
1.60
螺丝攻牙钻孔底径对照表
23 23.21 22.835
23.5
24 24.5
25 25.5
26 26 26.5 27 27 28 28.5 29 30 30.5 30 31 31.5 33.5 33 34 34.5
23.676
24.153 24.676 25.21 25.676 26.153 26.21 26.676 27.153 27.152 28.21 28.676 29.153 30.21 30.676 30.252 31.21 31.676 33.676 33.252 34.21 34.676
M25*1.5
M25*1.0 M26*1.5 M27*2.0 M27*1.5 M27*1.0 M28*2.0 M28*1.5 M28*1.0 M30*3.0 M30*2.0 M30*1.5 M30*1.0 M32*2.0 M32*1.5 M33*1.0 M33*2.0 M33*1.5 M35*1.5 M36*3.0 M36*2.0 M36*1.5
公制粗螺纹
规格
标准径
2级牙钻孔径
最大
最小
M1.0*0.2 5
0.75 0.785 0.729
M1.1*0.2 5
0.85 0.885 0.829
M1.2*0.2 5
0.95 0.985 0.929
M1.4*0.3 0
1 1.142 1.075
M1.6*0.3 5
1.25 1.321 1.221
M1.7*0.3 5
美制细螺纹
规格(UNF)
标准径
2级牙钻孔径
M2.5*0.3 5 M2.6*0.3 5 M3.0*0.3 5 M3.5*0.3 5
M4.0*0.5
2.2 2.221 2.121 2.2 2.246 2.186 2.7 2.721 2.621 3.2 3.221 3.121 3.5 3.599 3.459
螺丝攻牙孔径对照表
11.153 11.520 12.676 13.153 13.676 14.153 14.676 15.153 15.676 16.153 16.210 16.676 17.153 18.210 18.676 19.153 20.210 20.676 21.153 22.210 22.676 23.153 23.210 23.676 24.153 24.676 25.210 25.676 26.153 26.210 26.676 27.153 27.152 28.210 28.676 29.153 30.210 30.676 30.252 31.210 31.676 33.676 33.252 34.210 34.676
3.69 4.64 5.55 6.55 7.44 9.32 9.44 11.21 11.44
注:迫牙丝攻之钻孔径,在上表所列之数值,由 于被加工材料之材质,硬度,形状,尺寸等之影 响,多少会有所变动,因此于参考上表之同时, 亦精增减若干。
美制粗螺纹
规格(UNC) 标准径 2级牙钻孔径 最大756 2.025 2.271 2.551 2.820 3.404 3.963 4.496 5.360 6.782 8.382 9.729 11.329 12.751 14.351 17.323 20.270 23.114 26.289 29.464 32.639 35.814
标准径 2级牙钻孔径 最大 最小
公制迫牙丝攻钻孔径
规格 精 度 等级 G4-G6 G7-G8 G9
M1.0*0.25 M1.1*0.25 M1.2*0.25 M1.4*0.30 M1.6*0.35 M1.7*0.35 M1.8*0.35 M2.0*0.40 M2.2*0.45 M2.3*0.40 M2.5*0.45 M2.6*0.45 M3.0*0.50 M3.0*0.60 M3.5*0.60 M4.0*0.70 M4.0*0.75 M4.5*0.75 M5.0*0.80 M5.0*0.90 M6.0*1.00 M7.0*1.00 M8.0*1.25 M9.0*1.25 M10*1.50 M11*1.50 M12*1.75 M14*2.00 M16*2.00 M18*2.50 M20*2.50 M22*2.50 M24*3.00 M27*3.00 M30*3.50
螺丝攻牙钻孔径和滚丝径对照表
螺丝攻牙钻孔径和滚丝径对照表螺丝攻牙钻孔径和滚丝径对照表公制粗螺纹美制粗螺纹规格标准径2级牙钻孔径规格（UNC）标准径2级牙钻孔径最大最小最大最小M1.0×0.25 0.75 0.785 0.729NO.1-64(1.854) 1.55 1.582 1.425M1.1×0.25 0.85 0.885 0.829NO.2-56(2.184) 1.80 1.871 1.695M1.2×0.25 0.95 0.985 0.985NO.3-48(2.515) 2.10 2.146 1.941M1.4×0.3 1.10 1.142 1.075NO.4-40(2.845) 2.30 2.385 2.157M1.6×0.35 1.25 1.321 1.221NO.5-40(3.175) 2.60 2.697 2.487M1.7×0.35 1.35 1.421 1.321NO.6-32(3.505) 2.80 2.895 2.642M1.8×0.35 1.45 1.521 1.421NO8-32(4.166) 3.40 3.53 3.302M2.0×0.4 1.60 1.679 1.567NO.10-24(4.826) 3.90 3.962 3.683M2.2×0.45 1.75 1.838 1.713NO.12-24(5.486) 4.50 4.597 4.344M2.3×0.4 1.90 1.979 1.867 1/4-20 5.10 5.257 4.979M2.5×0.45 2.10 2.138 2.013 5/16-18 6.60 6.731 6.401M2.6×0.45 2.20 2.238 2.113 3/8-16 8.00 8.153 7.798M3.0×0.5 2.50 2.599 2.459 7/16-14 9.40 9.55 9.144M3.0×0.6 2.40 2.440 2.280 1/2-13 10.80 11.023 10.592M3.5×0.6 2.90 3.010 2.850 9/16-12 12.20 12.446 11.989M4.0×0.7 3.30 3.422 3.242 5/8-11 13.60 12.868 13.386M4.0×0.75 3.25 3.326 3.106 3/4-10 16.50 18.840 16.307M4.5×0.75 3.80 3.878 3.688 7/8-9 19.50 19.761 19.177M5.0×0.8 4.20 4.334 4.134 1 22.2022.606 21.971M5.0×0.9 4.10 4.170 3.930 1-1/8-7 25.00 25.349 24.638M6.0×1.0 5.00 5.153 4.917 1-1/4-7 28.20 28.524 27.813M7.0×1.0 6.00 6.153 5.917 1-3/8-6 30.80 31.115 30.353M8.0×1.25 6.80 6.912 6.647 1-1/2-6 34.00 34.290 33.528M9.0×1.25 7.80 7.912 7.647 1-3/4-5 39.50 39.827 38.964M10×1.5 8.50 8.676 8.376 2-4-1/2 45.20 45.593 44.679M11×1.5 9.50 9.676 9.376M12×1.75 10.30 10.441 10.106M14×2.0 12.00 12.210 11.835M16×2.0 14.00 14.210 13.835M18×2.5 15.50 15.744 15.294M20×2.5 17.50 17.744 17.294M22×2.5 19.50 19.744 19.294M24×3.0 21.00 21.252 20.752M27×3.0 24.00 24.252 23.752M30×3.5 26.50 26.771 26.211螺丝攻牙钻孔径和滚丝径对照表公制细螺纹美制细螺纹规格标准径2级牙钻孔径规格（UNC）标准径2级牙钻孔径最大最小最大最小M1.0×0.2 0.80 0.821 0.783 NO.0-80(1.524) 1.25 1.305 1.182M1.1×0.2 0.90 0.921 0.883 NO.1-72(1.854) 1.55 1.612 1.474M1.2×0.2 1.00 1.021 0.983 NO.2-64(2.184) 1.85 1.912 1.756M1.4×0.2 1.20 1.221 1.183 NO.3-56(2.515) 2.10 2.197 2.025M1.6×0.2 1.40 1.421 1.383 NO.4-48(2.845) 2.40 2.458 2.271M1.7×0.2 1.45 1.500 1.460NO.5-44(3.175) 2.70 2.740 2.551M1.8×0.2 1.60 1.621 1.583NO.6-40(3.505) 2.90 3.022 2.820M2.0×0.25 1.75 1.785 1.729NO.8-36(4.166) 3.50 3.606 3.404M2.2×0.25 1.95 1.985 1.929NO.10-32(4.826) 4.10 4.165 3.963M2.3×0.25 2.05 2.061 2.001NO.12-28(5.846) 4.60 4.724 4.496M2.5×0.35 2.20 2.221 2.121 1/4-28 5.50 5.588 5.360M2.6×0.35 2.20 2.246 2.186 5/16-24 6.90 7.035 6.782M3.0×0.35 2.70 2.721 2.621 3/8-24 8.50 8.636 8.382M3.5×0.35 3.20 3.221 3.121 7/16-20 9.90 10.033 9.729M4.0×0.5 3.50 3.599 3.459 1/2-20 11.50 11.607 11.329M4.5×0.5 4.00 4.099 3.959 9/16-18 12.90 13.081 12.751M5.0×0.5 4.50 4.599 4.459 5/8-18 14.50 14.681 14.351M5.5×0.5 5.00 5.099 4.959 3/4-16 17.50 17.678 17.323M6.0×0.75 5.30 5.378 5.188 7/8-14 20.50 20.675 20.270M6.0×0.5 5.50 5.550 5.400 1-12 23.20 23.571 23.114M7.0×0.75 6.30 6.378 6.188 1-1/8-12 26.50 26.746 26.289M7.0×0.5 6.50 6.550 6.400 1-1/4-1229.50 29.921 29.464M8.0×1.0 7.00 7.153 6.917 1-3/8-12 32.80 33.096 32.639M8.0×0.75 7.30 7.378 7.188 1-1/2-12 36.00 36.271 35.814M8.0×0.5 7.50 7.520 7.400M9.0×1.0 8.00 8.153 7.917M9.0×0.75 8.30 8.378 8.188M10×1.25 8.80 8.912 8.647M10×1.0 9.00 9.153 8.917M10×0.75 9.30 9.378 9.188M10×0.5 9.50 9.520 9.400M11×1.0 10.00 10.153 9.917M11×0.75 10.30 10.378 10.188M12×1.5 10.50 10.676 10.376M12×1.25 10.80 10.912 10.647M12×0.5 11.50 11.520 11.400 M14×1.5 12.50 12.676 12.376 M14×1.0 13.00 13.153 12.917 M15×1.5 13.50 13.676 13.376 M15×1.0 14.00 14.153 13.917 M16×1.5 14.50 14.676 14.376 M16×1.0 15.00 15.153 14.917 M17×1.5 15.50 15.676 15.376 M17×1.0 16.00 16.153 15.917 M18×2.0 16.00 16.210 15.835 M18×1.5 16.50 16.676 16.376 M18×1.0 17.00 17.153 16.917 M20×2.0 18.00 18.210 17.835 M20×1.5 18.50 18.676 18.376 M20×1.0 19.00 19.153 18.917 M22×2.0 20.00 20.210 19.835 M22×1.5 20.50 20.676 20.376 M22×1.0 21.00 21.153 20.917M24×1.5 22.50 22.676 22.376 M24×1.0 23.00 23.153 22.917 M25×2.0 23.00 23.210 22.835 M25×1.5 23.50 23.676 23.376 M25×1.0 24.00 24.153 23.917 M26×1.5 24.50 24.676 24.376 M27×2.0 25.00 25.210 24.835 M27×1.5 25.50 25.676 25.376 M27×1.0 26.00 26.153 25.917 M28×2.0 26.00 26.210 25.835 M28×1.5 26.50 26.676 26.376 M28×1.0 27.00 27.153 26.917 M30×3.0 27.00 27.252 26.752 M30×2.0 28.00 28.210 27.835 M30×1.5 28.50 28.676 28.376 M30×1.0 29.00 29.153 28.917 M32×2.0 30.00 30.210 29.835 M32×1.5 30.50 30.676 30.376M33×3.0 30.00 30.252 29.752M33×2.0 31.00 31.210 30.835M33×1.5 31.50 31.676 31.376M35×1.5 33.50 33.676 33.376M36×3.0 33.00 33.252 32.752M36×2.0 34.00 34.210 33.835M36×1.5 34.50 34.676 34.376螺丝攻牙钻孔径和滚丝径对照表公制挤压丝攻钻孔径美制挤压丝攻钻孔径规格精度等级规格（UNC）精度等级G4-G6 G7-G8 G9 G4-G6 G7-G8 G9M1.0×0.25 0.86 0.88 －NO.2-56UNC 1.94 －－M1.1×0.25 0.96 0.98 －NO.3-48 2.23 －－M1.2×0.25 1.06 1.08 －NO.4-40 2.50 －－M1.4×0.3 1.24 1.25 －NO.5-40 2.83 －－M1.6×0.35 1.41 1.43 －NO.6-32 3.07 －－－M1.8×0.35 1.61 1.63 －NO.10-24 4.24 4.3 －M2.0×0.4 1.78 1.80 －NO.12-24 4.90 4.96 －M2.2×0.45 1.95 1.98 －1/4-20 －5.72 －M2.3×0.4 2.08 2.10 －5/16-18 －7.24 －M2.5×0.45 2.25 2.28 －3/8-16 －8.74 8.81 M2.6×0.45 2.35 2.38 －7/16-14 －10.20 10.30M3.0×0.5 2.73 2.75 －1/2-13 －11.27 11.82M3.5×0.6 3.17 3.20 －NO.2-64UNF 1.97－－M4.0×0.7 3.62 3.65 3.69 NO.3-56 2.27 －－M5.0×0.8 4.56 4.60 4.64 NO.4-48 2.56 －－－M7.0×1.0 6.45 6.50 6.55 NO.6-40 3.16 －－M8.0×1.25 7.31 7.38 7.44 NO.8-36 3.78 －－M10×1.5 9.18 9.25 9.32 NO.10-32 4.394.43 －M10×1.25 9.31 9.38 9.44 NO.12-28 4.99 5.04 －M12×1.75 11.04 11.12 11.21 1/4-28 5.85 5.90 －M12×1.25 11.31 11.38 11.44 5/16-24 7.36 7.41 －3/8-24 －9.00 －7/16-20 －10.48 10.541/2-20 －12.07 12.13美制特细螺纹英制电器螺纹规格标准径2级牙钻孔径规格钻孔径最大最小NO.12-32 4.70 4.826 4.623 2BA 4.0-4.2 1/4 -32 5.60 5.690 5.486 3BA5/16 -32 7.10 7.264 7.087 4BA 3.0-3.2 3/8 -32 8.70 8.865 8.661 5BA 2.7-2.8 7/16 -28 10.20 10.338 10.135 6BA 2.4-2.51/2 -28 11.80 11.938 11.7099/16 -24 13.20 13.386 13.1325/8 -24 14.80 14.986 14.7323/4 -20 17.80 17.958 17.6787/8 -20 21.00 21.133 20.8531 -20 24.00 24.308 24.028螺丝攻牙钻孔径和滚丝径对照表英制螺纹公制螺纹针车用螺纹规格(UNEF) 钻孔径规格滚丝径规格滚丝径硬材软材W 1/8 - 40 2.65 2.60 M3×0.5 2.63-2.60SM1/8-40 2.735-2.688W 5/32 - 32 3.25 3.20 M3.0×0.6 2.56-2.53 SM1/8-44 2.769-2.722W 3/16 - 24 3.75 3.70 M3.5×0.6 3.06-3.03 SM9/64-40 3.128-3.083W 1/4 - 20 5.10 5.00 M4.0×0.7 3.49-3.45 SM11/64-40 3.855-3.805W 5/16 - 18 6.60 6.50 M4.0×0.75 3.45-3.41 SM3/16-32 4.205-4.155W 3/8 - 16 8.00 7.90 M4.5×0.75 3.96-3.92 SM3/16-28 4.143-4.093W 7/16 - 14 9.40 9.30 M5.0×0.8 4.43-4.38 SM7/32-32 5.003-4.955W 1/2 - 12 10.70 10.50 M5.0×0.9 4.36-4.31 SM15/64-28 5.325-5.570W 9/16 - 12 12.30 12.00 M6.0×1.05.30-5.25 SM1/4-40 5.890-5.735W 5/8 - 11 13.70 13.50 M7.0×1.0 6.30-6.25 SM1/4-28 5.721-5.366W 3/4 - 10 16.70 16.50 M8.0×1.0 7.28-7.23 SM9/32-28 6.508-6.648W 7/8 - 9 19.50 19.30 M8.0×1.25 7.12-7.07 SM11/32-28 8.092-8.432W1 - 8 22.40 22.00 SM3/8-288.880-8.015W 1-1/8 - 7 25.00 24.80 SM7/16-28 10.466-10.401W 1 - 1/4 - 7 28.30 28.00 SM7/16-16 10.037-9.967SM1/2-20 11.819-11.749SM9/26-20 13.400-13.425英制管螺纹英制管螺纹美制管螺纹规格标准径钻孔径规格标准径有交牙部之长度（最小）中之毋螺牙内径标准长度（最小）中之毋螺牙内径规格钻孔径最大最小使用绞刀时不用绞刀时NPT NPS 使用绞刀时不用绞刀时PS 1/16 - 28 6.50 6.632 6.490 PT 1/16 - 28 6.10 6.20 6.244 6.384 1/16 - 27 6.10 6.25 6.35PS 1/8 - 28 8.50 8.637 8.495 PT 1/8 - 28 8.10 8.20 8.249 8.388 1/8 - 27 8.33 8.43 8.74PS 1/4 - 19 11.40 11.549 11.341 PT 1/4 - 19 10.70 11.00 10.962 11.174 1/4 - 18 10.72 11.13 11.13PS 3/8 - 19 15.00 15.054 14.846 PT 3/8 - 19 14.20 14.50 14.448 14.658 3/8 - 18 14.27 14.27 14.68PS 1/2 - 14 18.50 18.773 18.489 PT 1/2 - 14 17.60 18.00 17.979 18.263 1/2 - 14 17.48 17.86 18.26PS 3/4 -14 24.00 24.259 23.975 PT 3/4 - 14 23.00 23.50 23.378 23.663 3/4 - 14 22.63 23.01 23.42PS 1 - 11 30.20 30.471 30.111 PT 1- 11 29.00 29.50 29.459 29.822 1 - 11-1/2 28.58 28.98 29.36PS 1-1/4 - 11 38.80 39.132 38.772 PT 1-1/4 - 11 37.50 38.00 37.976 38.3391-1/4-11-1/2 37.31 37.69 38.10PS 1-1/2 - 11 44.80 45.025 44.665 PT 1-1/2 - 11 43.40 44.00 43.869 44.2321-1/2-11-1/2 43.66 44.04 44.45PS 2 - 11 56.50 56.836 56.476 PT 2 - 11 54.90 55.50 55.412 55.844 2 - 11 - 1/2 55.58 55.96 56.36。
螺纹孔径对照表
当之处，应视实际状况适当的变更钻头直径。
本表是依据2级牙制订。
注：迫牙丝攻之钻孔径，在上表所列之数
值，由于被加工 材料之材质、硬度、形状
、尺寸等之影响，多少会有所变动，因此于
参考上表之同时，亦请增减若干。
螺纹攻牙钻孔径和滚造径对照表
本表所推选之钻头孔径，是针对攻牙加工时，能够很容易的了解钻孔直径；而依据市售之标准钻头所选定的。
在使用钻头的情况下，由于钻头的形状及尺寸、精度、被钻孔之材质等，对于所钻孔的尺寸、精度有很大的影响，所以使用本表之钻孔径，若有不。
螺丝攻牙径对照表
美 制 细 牙 螺 纹
无 沟 丝 攻 钻 孔 径
度 等 级
螺丝攻牙钻孔径和
本表所推选之钻头孔径，是针对攻牙加工时，能够很容易的了解钻孔直径；而依据市售之标准钻头所选定的尺寸、精度有很大的影响，所以使用本表之钻孔径，若有不当之处，应视实际状况适当的变更钻头直径。
本
美制细牙螺纹美制细牙螺纹
英 制 螺 纹
若干。
细 牙 螺 纹
攻 无 沟 丝 攻 钻 孔 径
精英 制 管 螺 纹
针 车 用 螺 纹
孔径和滚造径对照表
标准钻头所选定的。
在使用钻头的情况下，由于钻头的形状及尺寸、精度、被钻孔之材质等，对于所钻孔变更钻头直径。
本表是依据 2 级牙制订。
细 牙 螺 纹
英 制 管 螺 纹
英 制 管 螺 纹
公 制 螺 纹。
螺纹攻牙钻孔径对照表
22.4
22
M3.5X0.6 2.9 3.01 2.85 M20X1.0 19 19.153 18.917 1/2" -13 G8 11.92 11.7 M4.0X0.7 G6 3.72 3.65 W1-1/8-7 25
24.8
M4.0X0.7 3.3 3.42 3.24 M22X2.0 20 20.21 19.835 0 -80UNF G5 1.45 1.39 M5.0X0.8 G6 4.67 4.59 W1-1/4-7 28.3
6.5
M1.7X0.35 1.35 1.42 1.32 M16X1.0 15 15.153 14.917 6 -32 G5 3.22 3.11 M1.8X0.35 G4 1.67 1.62 W3/8-16
8
7.9
M1.8X0.35 1.45 1.52 1.42 M17X1.5 15.5 15.676 15.376 8 -32 G6 3.89 3.78 M2.0X0.4 G4 1.84 1.79 W7/16-14 9.4
12
M2.3X0.4 1.9 1.98 1.88 M18X1.5 16.5 16.676 16.376 1/4" -20 G7 5.86 5.73 M2.5X0.45 G5 2.34 2.27 W5/8-11 13.7
13.5
M2.5X0.45 2.1 2.14 2.01 M18X1.0 17 17.153 16.917 5/16" -18 G7 7.38 7.23 M2.6X0.45 G5 2.44 2.37 W3/4-10 16.7
M6.0X1.0 5 5.153 4.92 M24X2.0 22 22.21 21.835 3 -56 G4 2.37 2.29 M8.0X1.25 G7 7.49 7.36
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SM9/64 - 40 SM11/64 - 40 SM3/16 - 32
美制粗螺纹
规格（UNC）
NO. 1 - 64(1.854) NO. 2 - 56(2.184) NO. 3 - 48(2.515) NO .4 - 40(2.845) NO .5 - 40(3.175) NO .6 - 32(3.505) NO. 8 - 32(4.166) NO.10 - 24(4.826) NO.12 - 24(5.486) 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1 1 -1/8 1 -1/4 1 -3/8 1 -1/2 1 -3/4 - 20 - 18 - 16 - 14 - 13 - 12 - 11 - 10 -9 -8 -7 -6 -5
螺 纹 攻 牙 钻 孔 径 和 滚 造 径 对 照 表.
******本表依据二级牙制订
公制粗螺 纹
规格 M1.0*0.25 M1.1*0.25 M1.2*0.25 M1.4*0.3 M1.6*0.35 M1.7*0.35 M1.8*0.35 M2.0*0.4 M2.2*0.45 M2.3*0.4 M2.5*0.45 M2.6*0.45 M3.0*0.5 M3.0*0.6 M3.5*0.6 M4.0*0.7 M4.0*0.75 M4.5*0.75 M5.0*0.8 M5.0*0.9 M6.0*1.0 M7.0*1.0 M8.0*1.25 M9.0*1.25 M10*1.5 M11*1.5 M12*1.75 M14*2.0 M16*2.0 M18*2.5 M20*2.5 M22*2.5 M24*3.0 M27*3.0 M30*3.5 标准径 0.75 0.85 0.95 1.10 1.25 1.35 1.45 1.60 1.75 1.90 2.10 2.20 2.50 2.40 2.90 3.30 3.25 3.80 4.20 4.10 5.00 6.00 6.80 7.80 8.50 9.50 10.30 12.00 14.00 15.50 17.50 19.50 21.00 24.00 26.50 二级牙钻孔径 最大 0.785 0.885 0.985 1.142 1.321 1.421 1.521 1.679 1.838 1.979 2.138 2.238 2.599 2.440 3.010 3.422 3.326 3.878 4.334 4.170 5.153 6.153 6.912 7.912 8.676 9.676 10.441 12.210 14.210 15.744 17.744 19.744 21.252 24.252 26.771 最小 0.729 0.829 0.929 1.075 1.221 1.321 1.421 1.567 1.713 1.867 2.013 2.113 2.459 2.280 2.850 3.242 3.106 3.688 4.134 3.930 4.917 5.917 6.647 7.647 8.375 9.376 10.106 11.835 13.835 15.294 17.294 19.294 20.752 23.752 26.211 M12*1.0 M12*0.5 M14*1.5 M14*1.0 M15*1.5 M15*1.0 M16*1.5 M16*1.0 M17*1.5 M17*1.0 M18*2.0 M18*1.5 M18*1.0 M20*2.0 M20*1.5 M20*1.0 M22*2.0 M22*1.5 M22*1.0 M24*2.0 M24*1.5 M24*1.0 M25*2.0 M25*1.5 M25*1.0 M26*1.5 M27*2.0 M27*1.5 M27*1.0 M28*2.0 M28*1.5 M28*1.0 M30*3.0 M30*2.0 M30*1.5 M30*1.0 M32*2.0 M32*1.5 M33*3.0 M33*2.0 M33*1.5 M35*1.5 M36*3.0 M36*2.0 M36*1.5 11.00 11.50 12.50 13.00 13.50 14.00 14.50 15.00 15.50 16.00 16.00 16.50 17.00 18.00 18.50 19.00 20.00 20.50 21.00 22.00 22.50 23.00 23.00 23.50 24.00 24.50 25.00 25.50 26.00 26.00 26.50 27.00 27.00 28.00 28.50 29.00 30.00 30.50 30.00 31.00 31.50 33.50 33.00 34.00 34.50
精度等级 G7-G8
0.88 0.98 1.08 1.25 1.43 1.53 1.63 1.80 1.98 2.10 2.28 2.38 2.75 3.20 3.65 4.60 5.50 6.50 7.38 9.25 9.38 11.12 11.38
精度等级 G1-G6
1.94 2.23 2.50 2.83 3.07 3.73 4.24 4.90 .. .. .. .. .. 1.97 2.27 2.56 2.86 3.16 3.78 4.39 4.99 5.85 7.36 .. .. ..
英制管螺纹
规格
PS 1/16 - 28 PS PS PS PS PS PS 1/8 - 28 1/4 - 19 3/8 - 19 1/2 - 14 3/4 - 14 1 - 11
SM7/22 - ?
最小
1.452 1.695 1.941 2.157 2.487 2.642 3.302 3.683 4.344 4.979 6.401 7.798 9.144 10.592 11.989 11.386 16.307 19.177 21.971 24.638 27.813 30.353 33.528 38.964 44.679
钻孔径 硬材
2.65 3.25 3.75 5.10 6.60 8.00 9.40 10.70 12.30 13.70 16.70 19.50 22.40 25.00 28.30
G7-G8
.. .. .. .. .. 3.77 4.30 4.96 5.72 7.24 8.74 10.20 11.27 .. .. .. .. .. .. 4.43 5.04 5.90 7.41 9.00 10.48 12.07
软材
2.60 3.20 3.70 5.00 6.50 7.90 9.30 10.50 12.00 13.50 16.50 19.30 22.00 24.80 28.00
W1-1/8 -7 W1-1/4 -7
针车用螺纹
规格
SM1/8 SM1/8 - 40 - 44
滚造径
2.735-2.688 2.769-2.722 3.128-3.083 3.855-3.805 4.205-4.155 4.143-4.093 ? 5.325-5.570 5.890-5.735 5.721-5.366 6.508-6.648 8.092-8.432 8.880-8.015 10.466-10.401 10.037-9.957 11.319-11.749 13.400-13.425
英制螺纹
规格 G9
.. .. .. .. .. .. .. .. .. .. 8.81 10.30 11.82 .. .. .. .. .. .. .. .. .. .. .. 10.54 12.13 W1/8 - 40 W5/32 - 32 W3/16 - 24 W1/4 - 20 W5/16 - 18 W3/8 - 16 W7/16 - 14 W1/2 - 12 W9/16 - 12 W5/8 - 11 W3/4 - 10 W7/8 W1 -9 -8
标准径
6.50 8.50 11.40 15.00 18.50 24.00 30.20 38.80 44.80 56.50
钻孔径 最大
6.632 8.637 11.549 15.054 18.773 24.259 30.471 39.132 45.025 56.836
公制迫牙丝攻钻孔径
规格 G1-G6
M1.0*0.25 M1.1*0.25 M1.2*0.25 M1.4*0.3 M1.6*0.35 M1.7*0.35 M1.8*0.35 M2.0*0.4 M2.2*0.45 M2.3*0.4 M2.5*0.45 M2.6*0.45 M3.0*0.5 M3.5*0.6 M4.0*0.7 M5.0*0.8 M6.0*1.0 M7.0*1.0 M8.0*1.25 M10*1.5 M10*1.25 M12*1.75 M12*1.25 0.86 0.96 1.06 1.24 1.41 1.51 1.61 1.78 1.95 2.08 2.25 2.35 2.73 3.17 3.62 4.56 5.45 6.45 7.31 9.18 9.31 11.04 11.31
பைடு நூலகம்
SM3/16 - 28
标准径
1.55 1.80 2.10 2.30 2.60 2.80 3.40 3.90 4.50 5.10 6.60 8.00 9.40 10.80 12.20 13.60 16.50 19.50 22.20 25.00 28.20 30.80 34.00 39.50 45.20
美制迫牙丝攻钻孔径
规格 G9
.. .. .. .. .. .. .. .. .. .. .. .. .. .. 3.69 4.64 5.55 6.55 7.44 9.32 9.44 11.21 11.44 NO. 2-56UNC NO. 3-48 NO. 4-40 NO. 5-40 NO. 6-32 NO. 8-32 NO.10-24 NO.12-24 1/4 3/8 1/2 - 20 - 16 - 13 5/16 - 18 7/16 - 14 NO. 2-64UNF NO. 3-56 NO. 4-48 NO. 5-44 NO. 6-40 NO. 8-36 NO.10-32 NO.12-29 1/4 3/8 1/2 - 28 - 24 - 20 5/16 - 24 7/16 - 20