螺紋護套規格及鑽孔尺寸表
螺紋公稱 |
攻牙鑽孔尺寸 |
螺紋牙套長度(圈數)±1/4 |
公制粗牙螺紋 |
最小 |
最大 |
鑽頭 |
1D |
1.5D |
2D |
2.5D |
3D |
M3-0.5 |
3.12 |
3.20 |
3.1 |
4 |
6 5/8 |
9 1/4 |
11 7/8 |
14 1/2 |
M4-0.7 |
4.17 |
4.30 |
4.2 |
3 7/8 |
6 3/8 |
8 7/8 |
11 3/8 |
13 7/8 |
M5-0.8 |
5.16 |
5.33 |
5.2 |
4 3/8 |
7 1/8 |
9 7/8 |
12 5/8 |
15 1/2 |
M6-1.0 |
6.25 |
6.42 |
6.3 |
4 1/4 |
7 1/8 |
10 |
12 7/8 |
15 3/4 |
M7-1.0 |
7.25 |
7.42 |
7.3 |
5 1/2 |
8 5/8 |
11 3/4 |
14 1/8 |
17 1/4 |
M8-1.25 |
8.31 |
8.52 |
8.4 |
4 5/8 |
7 3/8 |
10 1/4 |
13 1/8 |
16 |
M10-1.5 |
10.37 |
10.62 |
10.5 |
5 |
8 |
11 |
14 |
17 |
M12-1.75 |
12.43 |
12.73 |
12.5 |
5 |
8 1/4 |
11 3/8 |
14 1/2 |
17 3/4 |
M14-2.0 |
14.49 |
14.83 |
14.5 |
5 1/4 |
8 1/2 |
11 3/4 |
15 |
18 3/8 |
M16-2.0 |
16.49 |
16.83 |
16.5 |
6 1/8 |
9 7/8 |
13 1/2 |
17 1/4 |
21 |
M18-2.5 |
18.58 |
19.04 |
19.0 |
5 5/8 |
9 |
12 1/2 |
15 5/8 |
19 |
M20-2.5 |
20.58 |
21.04 |
21.0 |
6 3/8 |
10 1/8 |
14 |
17 3/8 |
21 1/8 |
M22-2.5 |
22.58 |
23.04 |
23.0 |
7 1/8 |
11 1/4 |
15 1/2 |
19 |
23 1/8 |
公制細牙螺紋 |
最小 |
最大 |
鑽頭 |
1D |
1.5D |
2D |
2.5D |
3D |
M8-1.0 |
8.25 |
8.42 |
8.3 |
6 |
9 5/8 |
13 1/8 |
16 1/2 |
20 1/8 |
M10-1.0 |
10.25 |
10.42 |
10.3 |
7 7/8 |
12 3/8 |
17 |
21 |
25 1/2 |
M10-1.25 |
10.31 |
10.52 |
10.4 |
5 7/8 |
9 1/2 |
13 1/8 |
16 3/4 |
20 3/8 |
M12-1.25 |
12.31 |
12.52 |
12.4 |
7 3/8 |
11 5/8 |
16 |
20 1/4 |
24 1/2 |
M12-1.5 |
12.37 |
12.62 |
12.5 |
6 |
9 1/2 |
13 1/8 |
17 |
20 3/4 |
M14-1.5 |
14.37 |
14.62 |
14.5 |
7 |
11 1/8 |
15 3/8 |
20 |
24 1/4 |
M16-1.5 |
16.37 |
16.62 |
16.5 |
8 1/2 |
13 3/8 |
18 1/8 |
22 3/4 |
27 5/8 |
M18-1.5 |
18.37 |
18.62 |
18.5 |
9 3/4 |
15 1/8 |
20 5/8 |
25 7/8 |
31 3/8 |
M20-1.5 |
20.37 |
20.62 |
20.5 |
10 3/8 |
16 1/8 |
22 |
28 7/8 |
35 |
美英制粗牙螺紋 |
最小 |
最大 |
鑽頭 |
1D |
1.5D |
2D |
2.5D |
3D |
U#4-40 |
2.95 |
3.07 |
3.0 |
2 3/4 |
4 3/4 |
6 3/4 |
8 7/8 |
10 7/8 |
U#5-40 |
3.25 |
3.38 |
3.3 |
3 1/4 |
5 1/2 |
7 3/4 |
10 |
12 1/4 |
U#6-32 |
3.66 |
3.81 |
3.7 |
2 3/4 |
4 3/4 |
6 7/8 |
8 7/8 |
10 7/8 |
U#8-32 |
4.32 |
4.47 |
4.4 |
3 1/2 |
6 |
8 3/8 |
10 3/4 |
13 1/4 |
U#10-24 |
5.05 |
5.21 |
5.1 |
2 7/8 |
5 |
7 1/8 |
9 1/4 |
11 3/4 |
U1/4-20 |
6.63 |
6.78 |
6.7 |
3 3/8 |
5 3/4 |
8 |
10 3/8 |
12 3/4 |
U5/16-18 |
8.33 |
8.48 |
8.4 |
4 |
6 5/8 |
9 1/4 |
11 7/8 |
14 5/8 |
U3/8-16 |
9.91 |
10.11 |
10.0 |
4 3/8 |
7 1/4 |
10 |
12 7/8 |
15 3/4 |
U7/16-14 |
11.51 |
11.76 |
11.6 |
4 1/2 |
7 3/8 |
10 1/4 |
13 1/8 |
16 1/8 |
U1/2-13 |
13.08 |
13.34 |
13.2 |
4 7/8 |
7 7/8 |
11 |
14 1/8 |
17 1/8 |
U9/16-12 |
14.68 |
14.94 |
14.8 |
5 1/8 |
8 1/4 |
11 1/2 |
14 3/4 |
17 7/8 |
U5/8-11 |
16.59 |
16.84 |
16.7 |
5 1/4 |
8 1/2 |
11 3/4 |
15 |
18 3/8 |
U3/4-10 |
19.84 |
20.09 |
20.0 |
5 7/8 |
9 3/8 |
13 |
16 1/2 |
20 1/8 |
U7/8-9 |
23.01 |
23.27 |
23.0 |
6 1/4 |
10 |
13 3/4 |
17 1/2 |
21 1/4 |
美英制細牙螺紋 |
最小 |
最大 |
鑽頭 |
1D |
1.5D |
2D |
2.5D |
3D |
U#8-36 |
4.32 |
4.44 |
4.4 |
3 7/8 |
6 1/2 |
9 1/8 |
11 5/8 |
14 1/4 |
U#10-32 |
4.98 |
5.13 |
5.0 |
4 1/8 |
6 7/8 |
9 1/2 |
12 1/4 |
14 7/8 |
U1/4-28 |
6.53 |
6.71 |
6.6 |
5 |
8 1/4 |
11 3/8 |
14 1/2 |
17 5/8 |
U5/16-24 |
8.20 |
8.38 |
8.3 |
5 1/2 |
8 7/8 |
12 1/4 |
15 5/8 |
19 |
U3/8-24 |
9.78 |
9.96 |
9.8 |
6 7/8 |
11 |
15 |
19 1/8 |
23 1/8 |
U7/16-20 |
11.43 |
11.63 |
11.5 |
6 5/8 |
10 5/8 |
14 5/8 |
18 1/2 |
22 1/2 |
U1/2-20 |
13.03 |
13.26 |
13.1 |
7 7/8 |
12 3/8 |
16 7/8 |
21 3/8 |
25 7/8 |
U5/8-18 |
16.26 |
16.48 |
16.3 |
9 |
14 1/8 |
19 1/4 |
24 1/4 |
29 3/8 |
U3/4-16 |
19.43 |
19.68 |
19.5 |
9 3/4 |
15 1/8 |
20 5/8 |
26 |
31 1/2 |
火星塞專用 |
最小 |
最大 |
鑽頭 |
7.7L |
10L |
15L |
20L |
|
M14-1.25 |
14.27 |
14.40 |
14.30 |
4 5/8 |
6 1/2 |
9 3/4 |
13 1/8 |
|
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