螺丝攻牙对照表
螺丝攻牙钻孔径和滚丝径对照表(同名3775)
12.446
11.989
M4.0X0.7
3.30
3.422
3.242
5/8-11
13.60
12.868
13.386
M4.0X0.75
3.25
3.326
3.106
3/4-10
16.50
18.840
16.307
M4.5X0.75
3.80
3.878
3.688
7/8-9
19.50
19.761
19.177
M1.8M.2
1.60
1.621
1.583
NO.6-40(3.505)
2.90
3.022
2.820
M2.0M.25
1.75
1.785
1.729
NO.8-36(4.166)
3.50
3.606
3.404
M2.2M.25
1.95
1.985
1.929
NO.10-32(4.826)
4.10
4.165
3.963
22.00
22.210
21.835
M24X 1.5
22.50
22.676
22.376
!
1
i
M24X 1.0
23.00
23.153
22.917
j j
M25X 2.0
23.00
23.210
22.835
M25X 1.5
23.50
23.676
23.376
s
M25X 1.0
24.00
24.153
23.917
!
M11X 0.75
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
×
×
×
×
×
×
×
NO8-32
×
×
×
1/4-20
×
5/16-18
×
3/8-16
×
7/16-14
×
1/2-13
×
9/16-12
×
5/8-11
×
3/4-10
×
7/8-9
×
1
×
1-1/8-7
×
G7-G8
G9
×
－
－
－
×
－
－
－
×
－
－
－
×
－
－
－
×
－
－
－
×
－
－
×
－
－
×
－
－
×
－
1/4-20
－
－
×
－
5/16-18
－
－
×
－
3/8-16
－
×
－
7/16-14
－
×
－
1/2-13
－
×
－
－
－
×
－
－
×
－
－
×
－
－
×
－
－
×
－
－
M10×
－
M10×
－
M12×
1/4-28
－
M12×
5/16-24
螺丝攻牙径对照表(集合版)
2.2 2.7 3.2 3.5 4 4.5 5 5.3 5.5 6.3 6.5 7 7.3 7.5 8 8.3 8.8 9 9.3 9.5 10 10.3 10.5 10.8 11 11.5 12.5 13 13.5
2.246 2.721 3.221 3.599 4.099 4.599 5.099 5.378 5.55 6.378 6.55 7.153 7.378 7.52 8.153 8.378 8.912 9.153 9.378 9.52 10.153 10.378 10.676 10.912 11.153 11.52 12.676 13.153 13.676
螺丝攻牙钻孔径和滚造径对照表 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 M3.5*0.6 M4.0*0.7 M4.5*0.75 标准径 0.75 0.85 0.95 1.1 1.25 1.35 1.45 1.6 1.75 1.9 2.1 2.2 2.5 2.9 3.3 3.8 2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 3.01 3.422 3.878 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 2.85 3.242 3.688 规格 M5.0*0.8 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 4.2 5 6 6.8 7.8 8.5 9.5 10.3 12 14 15.5 17.5 19.5 21 24 26.5 2级牙钻孔径 最大 4.334 5.153 6.153 6.912 7.912 8.676 9.676 10.441 12.21 14.21 15.744 17.744 19.744 21.252 24.252 26.771 最小 4.134 4.917 5.917 6.647 7.647 8.376 9.376 10.106 11.835 13.835 15.294 15.294 19.294 20.752 23.752 26.211 规格 （UNF) (螺丝牙外 径） No.080(1.524) No.172(1.854) No.264(2.184) No.356(2.515) No.448(2.845) No.544(3.175) No.640(3.505) No.836(4.166) No.1032(4.826) No.1228(5.846) 2001/4/28 5/16 -24
螺丝攻牙径对照表(集合版)
螺丝攻牙对照表1
5/32 -32 3.25 3/16 -24 3.75 1/4 3/8 1/2 5/8 3/4 7/8 1 -20 5.10 -16 8.00 -12 10.70 -11 13.70 -10 16.70 -9 19.50 -8 22.40 5/16 -18 6.60 7/16 -14 9.40 9/16 -12 12.30
##### ###### ###### ##### ###### ######
SM 9/64 -40 SM 11/64-40 SM 3/16 -32 SM 3/16 -28 SM 7/32 -32 SM 15/64-28 SM 1/4 -40 -28
M12X1.75 ##### ###### ###### ##### ###### ###### ##### ###### ###### ##### ###### ###### ##### ###### ###### ##### ###### ###### ##### ###### ###### ##### ###### ###### ##### ###### ######
公制细螺纹
最小 规格
M12X1.0 M12X0.5 M14X1.5 M14X1.0 M15X1.5 M15X1.0 M16X1.5 M16X1.0 M17X1.5 M17X1.0 M18X2.0 M18X1.5 M18X1.0 M20X2.0 M20X1.5 M20X1.0 M22X2.0 M22X1.5 M22X1.0 M24X2.0 M24X1.5 M24X1.0 M25X2.0 M25X1.5 M25X1.0 M26X1.5 M27X2.0 M27X1.5 M27X1.0 M28X2.0 M28X1.5 M28X1.0 M30X3.0 M30X2.0 M30X1.5 M30X1.0
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。
公司使用螺丝攻牙孔径对照表
2级牙钻孔径
最大
最小
0.821 0.921 1.021 1.221 1.421 1.500 1.621 1.785 1.985 2.610 2.221 2.246 2.721 3.221 3.599 4.099 4.599 5.099 5.378 5.550 6.378 6.550 7.153 7.378 7.520 8.153 8.378 8.912 9.153 9.378 9.520 10.153 10.378 10.676 10.912
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
-
M2.3*0.40
2.08 2.10
-
M2.5*0.45
2.25 2.28
-
M2.6*0.45
2.35 2.38
-
M3.0*0.50
2.73 2.75
-
M3.5*0.60
3.17 3.20
-
M4.0*0.70
3.62 3.65 3.69
M5.0*0.80 M6.0*1.00 M7.0*1.00
4.56 4.60 4.64 5.45 5.50 5.55 6.45 6.50 6.55
0.783 0.883 0.983 1.183 1.383 1.460 1.583 1.729 1.929 2.001 2.121 2.186 2.621 3.121 3.459 3.959 4.459 4.959 5.188 5.400 6.188 6.400 6.917 7.188 7.400 7.917 8.188 8.647 8.917 9.188 9.400 8.917 10.188 10.376 10.647
螺丝攻牙孔径对照表
最大最小最大最小G4-G6G7-G8G9G4-G6G7-G8硬 材软 材M1.0*0.250.750.7850.729M12*1.011.0011.15310.917M1.0*0.250.860.88No.2-56UNC 1.94 2.65 2.60M1.1*0.250.850.8850.829M12*0.511.5011.52011.400M1.1*0.250.960.98No.3-48 2.23 3.25 3.20M1.2*0.250.950.9850.929M14*1.512.5012.67612.376M1.2*0.25 1.06 1.08No.4-40 2.50 3.75 3.70M1.4*0.31.10 1.142 1.075M14*1.013.0013.15312.917M1.4*0.3 1.24 1.25No.5-40 2.83 5.10 5.00M1.6*0.351.25 1.321 1.221M15*1.513.5013.67613.376M1.6*0.35 1.41 1.43No.6-32 3.07 6.60 6.50M1.7*0.351.35 1.421 1.321M15*1.014.0014.15313.917M1.7*0.35 1.51 1.53No.8-32 3.73 3.778.007.90M1.8*0.351.45 1.521 1.421M16*1.514.5014.67614.376M1.8*0.35 1.61 1.63No.10-24 4.24 4.309.409.30M2.0*0.41.60 1.679 1.567M16*1.015.0015.15314.917M2*0.4 1.78 1.80No.12-24 4.90 4.9610.7010.50M2.2*0.451.75 1.838 1.713M17*1.515.5015.67615.376M2.2*0.45 1.95 1.981/4 -20 5.7212.3012.00M2.3*0.41.90 1.979 1.867M17*1.016.0016.15315.917M2.3*0.4 2.08 2.105/16 -187.2413.7013.50M2.5*0.452.10 2.138 2.013M18*2.016.0016.21015.835M2.5*0.45 2.25 2.283/8 -168.7416.7016.50M2.6*0.452.20 2.238 2.113M18*1.516.5016.67616.376M2.6*0.45 2.35 2.387/16 -1410.2019.5019.30M3.0*0.52.50 2.599 2.459M18*1.017.0017.15316.917M3.0*0.5 2.73 2.751/2 -1311.2722.4022.00M3.0*0.62.40 2.440 2.280M20*2.018.0018.21017.835M3.5*0.6 3.17 3.20No.2-64UNF 1.9725.0024.80M3.5*0.62.903.010 2.850M20*1.518.5018.67618.376M4.0*0.7 3.62 3.65 3.69No.3-56 2.2728.3028.00M4.0*0.73.30 3.422 3.242M20*1.019.0019.15318.917M5.0*0.84.56 4.60 4.64No.4-48 2.56M4.0*0.753.25 3.326 3.106M22*2.020.0020.21019.835M6.0*1.0 5.45 5.50 5.55No.5-44 2.86M4.5*0.753.80 3.878 3.688M22*1.520.5020.67620.376M7.0*1.0 6.45 6.50 6.55No.6-40 3.16M5.0*0.84.20 4.334 4.134M22*1.021.0021.15320.917M8.0*1.257.317.387.44No.8-36 3.78M5.0*0.94.10 4.170 3.930M24*2.022.0022.21021.835M10*1.59.189.259.32No.10-32 4.39 4.43M6.0*1.05.00 5.153 4.917M24*1.522.5022.67622.376M10*1.259.319.389.44No.12-28 4.99 5.04SM1/8 -40M7.0*1.06.00 6.153 5.917M24*1.023.0023.15322.917M12*1.7511.0411.1211.211/4 -28 5.85 5.90SM1/8 -44M8.0*1.256.80 6.912 6.647M25*2.023.0023.21022.835M12*1.2511.3111.3811.445/16 -247.367.41SM9/64 -40M9.0*1.257.807.9127.647M25*1.523.5023.67623.3763/8 -249.00SM11/64-40M10*1.58.508.6768.376M25*1.024.0024.15323.9177/16 -2010.48SM3/16 -32M11*1.59.509.6769.376M26*1.524.5024.67624.3761/2 -2012.07SM3/16 -28M12*1.7510.3010.44110.106M27*2.025.0025.21024.835SM7/32 -32M14*2.012.0012.21011.835M27*1.525.5025.67625.376SM15/64-28M16*2.014.0014.21013.835M27*1.026.0026.15325.917SM1/4 -40M18*2.515.5015.74415.294M28*2.026.0026.21025.835SM1/4 -28M20*2.517.5017.74417.294M28*1.526.5026.67626.376SM9/32 -28M22*2.519.5019.74419.294M28*1.027.0027.15326.917规格最大SM11/32-28M24*3.021.0021.25220.752M30*3.027.0027.25226.752(UNC)最大最小PS 1/16 - 28 6.50 6.632SM3/8 -28M27*3.024.0024.25223.752M30*2.028.0028.21027.835 (螺丝牙外径)PS 1/8 - 288.508.637SM7/16 -28M30*3.526.5026.77126.211M30*1.528.5028.67628.376No.1-64(1.854) 1.55 1.582 1.425PS 1/4 - 1911.4011.549M30*1.029.0029.15328.917No.2-56(2.184) 1.80 1.871 1.695PS 3/8 - 1915.0015.054M32*2.030.0030.21029.835No.3-48(2.515) 2.10 2.146 1.941PS 1/2 - 1418.5018.773M32*1.530.5030.67630.376No.4-40(2.845) 2.30 2.385 2.157PS 3/4 - 1424.0024.259M33*3.030.0030.25229.752No.5-40(3.175) 2.60 2.697 2.487PS 1 - 1130.2030.471M33*2.031.0031.21030.835No.6-32(3.505) 2.80 2.895 2.642PS 1-1/4 - 1138.8039.132最大最小M33*1.531.5031.67631.376No.8-32(4.166) 3.40 3.53 3.302PS 1-1/2 - 1144.8045.025M1.0*0.20.800.8210.783M35*1.533.5033.67633.376No.10-24(4.826) 3.90 3.962 3.683PS 2 - 1156.5056.836M1.1*0.20.900.9210.883M36*3.033.0033.25232.752No.12-24(5.486) 4.50 4.597 4.344M1.2*0.2 1.00 1.0210.983M36*2.034.0034.21033.8351/4 - 20 5.10 5.257 4.979M1.4*0.2 1.20 1.221 1.183M36*1.534.5034.67634.3765/16 - 18 6.60 6.731 6.401M1.6*0.2 1.40 1.421 1.3833/8 - 168.008.1537.798M1.7*0.2 1.45 1.500 1.4607/16 - 149.409.559.144M1.8*0.2 1.60 1.621 1.5831/2 - 1310.8011.02310.592使用绞刀时不用绞刀时M2.0*0.25 1.75 1.785 1.7299/16 - 1212.2012.44611.989PT 1/16 -28 6.10 6.20 6.244 6.384M2.2*0.25 1.95 1.985 1.929规格5/8 - 1113.6012.86813.386PT 1/8 -288.108.208.4298.388M2.3*0.25 2.05 2.061 2.001(UNF)最大最小3/4 - 1016.5018.8416.307PT 1/4 -1910.7011.0010.96211.174M2.5*0.35 2.20 2.221 2.1217/8 - 919.5019.76119.177PT 3/8 -1914.2014.5014.44814.658M2.6*0.35 2.20 2.246 2.186No.0-80(1.524) 1.25 1.305 1.182 1 - 822.2022.60621.971PT 1/2 -1417.6018.0017.97918.263M3.0*0.35 2.70 2.721 2.621No.1-72(1.854) 1.55 1.612 1.4741-1/8 - 725.0025.34924.638PT 3/4 -1423.0023.5023.37823.663M3.5*0.35 3.20 3.221 3.121No.2-64(2.184) 1.85 1.912 1.7561-1/4 - 728.2028.52427.813PT 1 -1129.0029.5029.45929.822M4.0*0.5 3.50 3.599 3.459No.3-56(2.515) 2.10 2.197 2.0251-3/8 - 630.8031.11530.353PT 1-1/4 -1137.5038.0037.97638.339M4.5*0.5 4.00 4.099 3.959No.4-48(2.845) 2.40 2.458 2.2711-1/2 - 634.0034.2933.528PT 1-1/2 -1143.4044.0043.86944.232M5.0*0.5 4.50 4.599 4.459No.5-44(3.175) 2.70 2.74 2.5511-3/4 - 539.5039.82738.964PT 2 -1154.9055.5055.41255.844M5.5*0.55.00 5.099 4.959No.6-40(3.505) 2.90 3.022 2.82 2 - 4-1/245.2045.59344.679M6.0*0.755.30 5.378 5.188No.8-36(4.166) 3.50 3.606 3.404M6.0*0.55.50 5.550 5.400No.10-32(4.826) 4.10 4.165 3.963M7.0*0.756.30 6.378 6.188No.12-28(5.846) 4.60 4.724 4.496M7.0*0.56.50 6.550 6.4001/4 - 28 5.50 5.588 5.36M8.0*1.07.007.153 6.9175/16 - 24 6.907.035 6.782规格M8.0*0.757.307.3787.1883/8 - 248.508.6368.382(UNEF)最大最小使用绞刀时不用绞刀时M8.0*0.57.507.5207.4007/16 - 209.9010.0339.729No.12 - 32 4.70 4.826 4.6231/16 - 27 6.10 6.25M9.0*1.08.008.1537.9171/2 - 2011.5011.60711.3291/4 - 32 5.60 5.69 5.4861/8 -278.338.43M9.0*0.758.308.3788.1889/16 - 1812.9013.08112.7515/16 - 327.107.2647.0871/4 -1810.7211.13M10*1.258.808.9128.4675/8 - 1814.5014.68114.3513/8 - 328.708.8658.6613/8 -1814.2714.27M10*1.09.009.1538.9173/4 - 1617.5017.67817.3237/16 - 2810.2010.33810.1351/2 -1417.4817.86M10*0.759.309.3789.1887/8 - 1420.5020.67520.271/2 - 2811.8011.93811.7093/4 -1422.6323.01M10*0.59.509.5209.400 1 - 1223.2023.57123.1149/16 - 2413.2013.38613.132 1 -11-1/228.5828.98M11*1.010.0010.1539.9171-1/8 - 1226.5026.74626.2895/8 - 2414.8014.98614.7321-1/4 -11-1/237.3137.69M11*0.7510.3010.37810.1881-1/4 - 1229.5029.92129.4643/4 - 2017.8017.95817.6781-1/2 -11-1/243.6644.04M12*1.510.5010.67610.3761-3/8 - 1232.8033.09632.6397/8 - 2021.0021.13320.853 2 -11-1/255.5855.96M12*1.2510.8010.91210.6471-1/2 - 1236.0036.27135.814 1 - 2024.0024.30824.028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。
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規格(UNF)
標準徑
(螺絲牙外徑)
NO.0-80(1.524) NO.1-72(1.854) NO.2-64(2.184) NO.3-56(2.515) NO.4-48(2.845) NO.5-44(3.175) NO.6-40(3.505) NO.8-36(4.166) NO.10-32(4.826) NO.12-28(5.846)
4.20 4.334 4.134
M6.0×0.75
5.30
5.378 5.188
M5.0×0.9
4.10 4.170 3.930
M6.0×0.5
5.50
5.550 5.400
M6.0×1.0
5.00 5.153 4.917
M7.0×0.75
6.30
6.378 6.188
M7.0×1.0
6.00 6.153 5.917
17.958 17.678
21.133 20.853
24.308 24.028
--
--
螺絲攻牙鑽孔徑和滾造徑對照表
公制迫牙絲攻鑽孔徑
美制迫牙絲攻鑽孔徑
規格
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 M2.0×0.40 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
M2.2×0.25
1.95
1.985 1.929
M2.3×0.4
1.90 1.979 1.867
M2.3×0.25
2.05
2.061 2.001
M2.5×0.45
2.10 2.138 2.013
M2.5×0.35
2.20
2.221 2.121
M2.6×0.45
2.20 2.238 2.113
M2.6×0.35
20.00 20.210 19.835
20.50 20.676 20.376
21.00 21.153 20.917
22.00 22.210 21.835
22.50 22.676 22.376
23.00 23.153 22.917
23.00 23.210 22.835
規格
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 M35×3.0 M36×3.0 M36×2.0 M36×1.5
1/4 - 20 5/6 - 18 3/8 - 16 7/16 - 14 1/2 - 13 9/16 - 12 5/8 - 11 3/4 - 10 7/8 - 9 1 -8 1-1/8 - 7 1-1/4 - 7 1-3/8 - 6 1-1/2 - 6 1-3/4 - 5 2 - 4-1/2
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
標準徑
NO. 1 - 64 (1.854) NO. 2- 56 (2.134) 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)
M7.0×0.5
6.50
6.550 6.400
M8.0×1.25
6.80 6.912 6.647
M8.0×1.0
7.00
7.153 6.917
M9.0×1.25
7.80 7.912 7.647
M8.0×0.75
7.30
7.378 7.188
M10×1.5
8.50 8.676 8.376
M8.0×0.5
8.865 8.661
10.338 10.135
11.938 11.709
規格(UNEF)
9/16 - 24 5/8 - 24 3/4 - 20 7/8 - 20
1 - 20 --
標準徑
13.20 14.80 17.80 21.00 24.00
--
2級牙鑽孔徑
最大
最小
13.386 13.132
14.986 14.732
15.50 15.676 15.376
16.00 16.153 15.917
16.00 16.210 15.835
16.50 16.676 16.376
17.00 17.153 16.917
18.00 18.210 17.835
18.50 18.676 18.376
19.00 19.153 18.917
2級牙鑽孔徑
最大
最小
1.305 1.612 1.912 2.197 2.458 2.740 3.022 3.606 4.165 4.724 5.588 7.035 8.636 10.033 11.607 13.081 14.681 17.678 20.675 23.571 26.746 29.921 33.096 36.271
M1.2×0.25
0.95 0.985 0.929
M1.2×0.2
1.00
1.021 0.983
M1.4×0.3
1.10 1.142 1.075
M1.4×0.2
1.20
1.221 1.183
M1.6×0.35
1.25 1.321 1.221
M1.6×0.2
1.40
1.421 1.383
M1.7×0.35
2.20
2.246 2.186
M3.0×0.5
2.50 2.599 2.459
M3.0×0.35
2.70
2.721 2.621
M3.0×0.6
2.40 2.440 2.280
M3.5×0.35
3.20
3.221 3.121
M3.5×0.6
2.90 3.010 2.850
M4.0×0.5
3.50
3.599 3.459
美制特細螺紋
美制特細螺紋
規格(UNEF)
NO. 12 - 32 1/4 - 32 5/16 - 32 3/8 - 32
7/16 - 28 1/2 - 28
標準徑
4.70 5.60 7.10 8.70 10.20 11.80
2級牙鑽孔徑
最大
最小
4.826 4.623
5.690 5.486
7.264 7.087
7.50
7.520 7.400
M11×1.6
9.50
9.376
M9.0×1.0
8.00
8.153 7.917
M12×1.75
10.30 10.400 10.106
M9.0×0.75
8.30
8.378 8.188
M14×2.0
12.00 12.210 11.835
M10×1.25
8.80
8.912 8.647
1/4 - 28 5/16 - 24 3/8 - 24 7/16 - 20 1/2 - 20 9/16 - 18 5/8 - 18 3/4 - 16 7/8 - 14
1 - 12 1-1/8 - 12 1-1/4 - 12 1-3/8 - 12 1-1/2 - 12
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
11.023 10.592
12.446 11.989
12.868 13.386
18.480 16.307
19.761 19.177
22.606 21.971
25.349 24.638
28.524 27.813
31.115 30.353
34.290 33.528
39.827 38.964
45.593 44.679
24.153 23.917
24.676 24.376
25.210 24.835
25.676 25.376
26.153 25.917
26.210 25.835
26.676 26.376
27.153 26.917
27.252 26.752
28.210 27.835
28.676 28.376
29.153 28.917
M16×2.0
14.00 14.210 13.835
M10×1.0
9.00
9.153 8.917
M18×2.5
15.50 15.744 15.294
M10×0.75
9.30
9.378 9.188
M20×2.5
17.50 17.744 17.294
M10×0.5
9.50
9.520 9.400
M22×2.5
26.50 26.771 26.211
M12×1.25