攻牙孔徑表
公制牙 粗牙
無溝絲攻適用孔徑
螺紋牙套適用孔徑
規格
最小孔徑
建議孔徑
最大孔徑
M 1*0.25
0.73
0.78
M1.1*0.25
0.83
0.89
M1.2*0.25
0.93
0.98
M1.4*0.3
1.08
1.14
1.23
1.26
M1.6*0.35
1.22
1.32
M1.7*0.35
1.33
1.42
1.5
1.55
M1.8*0.35
1.52
M 2*0.4
1.57
1.67
1.77
1.83
M2.2*0.45
1.71
1.84
1.95
2.01
M2.3*0.4
1.87
1.97
2.07
2.13
M2.5*0.45
2.14
2.25
2.31
M2.6*0.45
2.12
2.23
2.35
2.41
M 3*0.5
2.46
2.6
2.64
2.72
2.79
3.12
3.2
M3.5*0.6
2.85
3.01
3.05
3.16
3.24
M 4*0.7
3.42
3.47
3.6
3.69
4.17
4.3
M4.5*0.75
3.88
3.92
4.07
M 5*0.8
4.13
4.33
4.38
4.55
4.65
5.16
5.33
M 6*1.0
4.92
5.15
5.22
5.43
5.55
6.25
6.42
M 7*1.0
5.92
6.15
6.22
6.43
6.55
7.25
7.42
M 8*1.25
6.65
6.91
6.98
7.29
8.31
8.52
M 9*1.25
7.65
7.91
7.98
8.29
8.42
M 10*1.5
8.38
8.68
8.75
9.15
9.3
10.37
10.62
M 11*1.5
9.38
9.68
9.75
10.15
10.3
M 12*1.75
10.11
10.44
10.53
11.01
11.19
12.43
12.73
M 14*2.0
11.84
12.21
12.31
14.49
14.83
M 16*2.0
13.84
14.21
14.31
16.49
16.83
M 18*2.5
15.29
15.74
15.85
18.58
19.04
M 20*2.5
17.29
17.74
17.85
20.58
21.04
M 22*2.5
19.29
19.74
19.85
M 24*3.0
20.75
21.25
21.38
M 27*3.0
23.75
24.25
24.38
M 30*3.5
26.21
26.77
26.92
M 33*3.5
29.21
29.77
29.92
M 36*4.0
31.67
32.27
32.42
M 39*4.0
34.67
35.27
M 42*4.5
37.13
37.8
37.98
M 45*4.5
40.13
40.8
40.98
M 48*5.0
42.59
43.3
43.49
英制牙 粗牙
無溝絲攻
適用孔徑
螺紋牙套
W 1/16-60
1.3
W 3/32-48
1.9
W 1/8 -40
W 5/32-32
W 3/16-24
3.8
W 1/4 -20
5
5.1
5.63
5.77
W 5/16-18
6.5
6.6
7.13
7.3
W 3/8 -16
7.9
8
8.63
8.8
W 7/16-14
9.4
10.09
10.29
W 1/2 -12
10.5
10.7
11.6
11.82
W 9/16 -12
12
12.3
W 5/8 -11
13.5
13.7
W 3/4 -10
16.5
16.7
W 7/8 -9
19.3
19.5
W 1 -8
22
22.4
W1-1/8 -7
24.8
25
W1-1/4 -7
28
28.3
W1-3/8 -6
30.3
30.5
W1-1/2 -6
33.5
33.8
W1-5/8 -5
35.7
36
W1-3/4 -5
39
39.2
W1-7/8 -4.5
41.5
41.8
W 2 -4.5
44.7
45
美製牙 粗牙
NO. 1-64UNC
1.43
1.58
1.63
NO. 2-56UNC
1.69
1.93
2.02
NO. 3-48UNC
1.94
2.15
2.22
2.32
NO. 4-40UNC
2.16
2.39
2.49
2.61
2.95
3.07
NO. 5-40UNC
2.7
2.82
2.92
3.25
3.38
NO. 6-32UNC
2.9
3.19
3.66
3.81
NO. 8-32UNC
3.3
3.53
3.71
3.83
4.32
4.47
NO.10-24UNC
3.68
3.96
4.23
4.37
5.05
5.21
NO.12-24UNC
4.34
4.6
4.88
5.02
1/4 -20UNC
4.98
5.26
6.63
6.78
5/16-18UNC
6.4
6.73
8.33
8.48
3/8 -16UNC
7.8
8.15
9.91
7/16-14UNC
9.14
9.55
11.51
11.76
1/2 -13UNC
10.59
11.02
13.08
13.34
9/16-12UNC
11.99
12.45
14.68
14.94
5/8 -11UNC
13.39
13.87
16.59
16.84
3/4 -10UNC
16.31
19.84
20.09
7/8 -9 UNC
19.18
19.76
1 -8 UNC
21.97
22.61
1-1/8 -7 UNC
24.64
25.35
1-1/4 -7 UNC
27.81
28.52
1-3/8 -6 UNC
30.35
31.12
1-1/2 -6 UNC
33.53
34.29
1-3/4 -5 UNC
38.96
39.83
2 - 4 1/2UNC
44.68
45.59
