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
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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
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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