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钢丝螺套安装钻孔攻牙指导规格表
钢丝螺套安装钻孔攻牙指导规格表

     钢丝螺套是一种内外都有螺纹的高强度紧固件，将其安装于螺丝孔中，有增强螺丝孔耐磨，耐热，防锈蚀的特点。在一些低强度材质的应用中，如：铝，铜，铸铁，电木和塑胶等，由于材料本身的强度与硬度不够，其内螺纹很容易受到损坏，如磨损、滑牙、锈蚀等。钢丝螺套能够很好的解决这些问题，其步骤为对低强度材料重新钻孔、攻牙并安装钢丝螺套。在进行螺丝孔钻孔攻牙时，请按照钢丝螺套安装钻孔攻牙指导规格表来进行操作，因为钢丝螺套在自由状态下（未安装之前）要比常规的螺纹大，将其安装于螺丝孔后，才能形成一个标准的螺丝孔，所以其钻头与丝攻的选择都需要使用指定的工具才能使钢丝螺套产品顺利安装。

 钢丝螺套安装钻孔攻牙指导规格表符号说明：
     d--钢丝螺套公称直径（螺钉公称直径）　　K--钢丝螺套公称长度　　t--丝套公称长度　　P--螺距     do--钻丝套安装用钻头直径　　Dz--钢丝螺套自由状态下外径　　N--钢丝螺套自由状态下圈数
 

 钢丝螺套安装钻孔攻牙指导规格表 

螺纹规格   直径×螺距
k×d
安装后长度L(mm)
安装前圈数N(≈)
安装前外径(mm)
钻头直径do(mm)
M1.6X0.35
1d
1.6
3.1
2.1-2.3
1.6
1.5d
2.4
4.5
2d
3.2
6.2
M2X0.4
1d
2
3.2
2.5-2.8
2.1
1.5d
3
5.3
2d
4
7.4
2.5d
5
9.5
3d
6
11.6
M2.5X0.45
1d
2.5
3.6
3.2-3.5
2.6
1.5d
3.8
5.9
2d
5
8.2
2.5d
6.3
10.5
3d
7.5
12.8
M3X0.5
1d
3
4.2
3.7-4
3.1
1.5d
4.5
6.8
2d
6
9.4
2.5d
7.5
12
3d
9
14.6
M3.5X0.6
1d
3.5
4
4.5-4.8
3.7
1.5d
5.3
6.4
2d
7
8.9
2.5d
8.8
11.4
3d
10.5
13.9
M4X0.7
1d
4
4
5.0-5.3
4.2
1.5d
6
6.6
2d
8
9.1
2.5d
10
11.7
3d
12
14.2
M5X0.8
1d
5
4.4
6.3-6.6
5.2
1.5d
7.5
7.1
2d
10
9.9
2.5d
12.5
12.6
3d
15
15.3
M6X1
1d
6
4.3
7.5-7.9
6.3
1.5d
9
6.9
2d
12
9.6
2.5d
15
12.2
3d
18
14.9
M7X1
1d
7
5.2
8.6-8.9
7.3
1.5d
10.5
8.3
2d
14
11.5
2.5d
17.5
14.6
M8X1.25
1d
8
4.8
9.8-10.1
8.3
1.5d
12
7.7
2d
16
10.6
2.5d
20
13.5
3d
24
16.5
M8X1
1d
8
6
9.8-10.1
8.3
1.5d
12
9.6
2d
16
13.1
2.5d
20
16.7
M10X1.5
1d
10
5
12.0-12.5
10.4
1.5d
15
8.1
2d
20
11.2
2.5d
25
14.2
3d
30
17.3
M10X1.25
1d
10
6.1
12.0-12.5
10.3
1.5d
15
9.7
2d
20
13.3
2.5d
25
16.9
M10X1
1
10
7.7
12.0-12.5
10.3
1.5
15
12.1
2
20
16.5
2.5
25
20.8
M11X1.5
1d
11
5.7
13.0-13.4
11.4
1.5d
16.5
9.1
2d
22
12.5
M12X1.75
1d
12
5.3
14.3-14.8
12.4
1.5d
18
8.4
2d
24
11.6
2.5d
30
14.8
3d
36
18
M12X1.5
1d
12
6.2
14.3-14.8
12.4
1.5d
18
9.8
2d
24
13.5
2.5d
30
17.1
M12X1.25
1d
12
7.5
14.3-14.8
12.3
1.5d
18
11.8
2d
24
16.1
2.5d
30
20.3
M12X1
1d
12
9.4
14.3-14.8
12.3
1.5d
18
14.7
2d
24
19.9
M14X2
1d
14
5.4
16.7-17.2
14.5
1.5d
21
8.7
2d
28
11.9
2.5d
35
15.2
3d
42
18.4
M14X1.5
0.75d
10.5
5.2
16.7-17.2
14.4
1d
14
7.3
1.5d
21
11.5
2d
28
15.7
2.5d
35
19.9
M14X1.25
1d
14
8.8
16.7-17.2
14.3
1.5d
21
13.8
M16X2
1d
16
6.3
18.8-19.4
16.5
1.5d
24
10
2d
32
13.7
2.5d
40
17.5
3d
48
21.2
M16X1.5
0.75d
12
6.1
18.8-19.4
16.4
1d
16
8.5
1.5d
24
13.3
2d
32
18.1
M18X2.5
1d
18
5.6
21.4-22
18.6
1.5d
27
9
2d
36
12.3
2.5d
45
15.7
3d
54
19
M18X2
0.75d
13.5
5
21.4-22
18.5
1d
18
7.1
1.5d
27
11.2
2d
36
15.2
M18X1.5
0.75d
13.5
7.1
21.4-22
18.4
1d
18
9.8
1.5d
27
15
2d
36
20.3
M20X2.5
1d
20
6.5
23.6-24.2
20.6
1.5d
30
10
2d
40
13.8
2.5d
50
17.5
3d
60
21.2
M20X2
0.75d
15
5.7
23.6-24.2
20.5
1d
20
8
1.5d
30
12.5
2d
40
17.1
M20X1.5
0.5d
10
4.8
23.6-24.2
20.4
0.75d
15
7.8
1d
20
10.7
1.5d
30
16.7
M22X2.5
1d
22
6.9
26.2-26.8
22.6
1.5d
33
11
2d
44
15
2.5d
55
19
3d
66
23
M22X2
0.75d
16.5
6.3
26.2-26.8
22.5
1d
22
8.8
1.5d
33
13.7
2d
44
18.6
M22X1.5
0.5d
11
5.4
26-26.6
22.4
0.75d
16.5
8.7
1d
22
11.9
1.5d
33
18.4
M24X3
1d
24
6.3
28.5-29.1
24.8
1.5d
36
10
2d
48
13.7
2.5d
60
17.5
3d
72
21.2
M24X2
0.75d
18
7
28.5-29.1
24.5
1d
24
9.6
1.5d
36
15
2d
48
20.3
M24X1.5
0.5
12
6
28.4-28.9
24.4
0.75d
18
9.5
1d
24
13
1.5d
36
20
M26X1.5
0.5d
13
6.5
28.5-30
26.4
0.75d
19.5
10.3
1d
26
14
M27X3
1d
27
7.2
32.1-32.5
27.8
1.5d
40.5
11.3
2d
54
15.4
2.5d
67.5
19.5
M27X2
0.75d
20.3
7.9
31.7-32.2
27.5
1d
27
10.9
1.5d
40.5
16.9
M27X1.5
0.5d
13.5
6.9
31.3-32.1
27.4
0.75d
20.3
10.9
1d
27
14.9
1.5d
40.5
22.8
M28X1.5
0.5d
14
7.1
33.0-33.6
28.4
0.75d
21
11.2
1d
28
15.3
1.5d
42
23.5
M30X3.5
1d
30
6.9
35.0-35.6
30.9
1.5d
45
11
2d
60
15
2.5d
75
19
M30X2
0.5d
15
5.6
34.7-35.3
30.5
0.75d
22.5
9
1d
30
12.3
1.5d
45
19
M30X1.5
0.5d
15
7.8
34.3-34.9
30.4
0.75d
22.5
12.2
1d
30
16.7
1.5d
45
25.5
M33X3.5
1d
33
7.8
38.1-38.6
33.9
1.5d
49.5
12.2
2d
66
16.6
2.5d
82.5
21.1
3d
99
25.5
M33X2
0.5d
16.5
6.4
38.0-38.5
33.5
0.75d
24.8
10.1
1d
33
13.8
1.5d
49.5
21.2
M33X1.5
0.5d
16.5
8.7
37.8-38.3
33.4
0.75d
24.8
13.6
1d
33
18.5
M36X4
0.75d
27
5.2
41.9-42.3
37
1
36
7.3
1.5d
54
11.6
2d
72
15.8
M36X3
0.5d
18
4.4
41.8-42.3
36.8
0.75d
27
7.1
1d
36
9.9
1.5d
54
15.4
M36X2
0.5d
18
6.9
41.7-42.3
36.5
0.75d
27
11
1d
36
15
1.5d
54
23
M39X2
0.5d
19.5
7.7
44.8-45.4
39.5
0.75d
29.3
12.1
1d
39
16.4
M42X4.5
1d
42
7.3
49-51
43
1.25d
52
9.5
1.5d
63
11.6
M42X3.0
1d
42
11.7
48-50.5
43
1.25d
52
14.8
1.5d
63
18.1
M48X3
0.5d
24
6.2
55-55.5
48.8
0.75d
36
9.9
1d
48
13.6
M56X4
0.5d
28
5.4
64-65
17
0.75d
42
8.6
1d
56
11.8
M60X3
0.5d
30
7.9
69-70
60.8
0.75d
45
12.4
1d
60
16.9
1.5d
90
25.9
M60X4
0.5d
30
5.8
69-70
61
0.75d
45
9.2
1d
60
12.6
1.5d
90
19.5
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