开槽半沉头螺钉(GB/T 69—2016)
开槽半沉头螺钉(GB/T 69—2016)
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开槽半沉头螺钉(GB/T 69—2016) mm |
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标记示例： 螺纹规格d＝M5、公称长度l＝20mm、性能等级为4.8级、不经表面处理的A级开槽半沉头螺钉的标记： 螺钉 GB/T 69 M5×20 |
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螺纹 规格 d |
螺距 P |
a |
b |
dk |
f ≈ |
k |
n |
r max |
rf ≈ |
t |
x max |
l的范围 |
全螺纹 长度l |
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|
max |
min |
理论值 |
实际值 |
公称＝max |
公称 |
max |
min |
max |
min |
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|
max |
公称＝max |
min |
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M1.6 |
0.35 |
0.7 |
25 |
3.6 |
3.0 |
2.7 |
0.4 |
1 |
0.4 |
0.60 |
0.46 |
0.4 |
3 |
0.80 |
0.64 |
0.9 |
2.5～16 |
2.5～30 |
|
M2 |
0.4 |
0.8 |
25 |
4.4 |
3.8 |
3.5 |
0.5 |
1.2 |
0.5 |
0.70 |
0.56 |
0.5 |
4 |
1.0 |
0.8 |
1 |
3～20 |
3～30 |
|
M2.5 |
0.45 |
0.9 |
25 |
5.5 |
4.7 |
4.4 |
0.6 |
1.5 |
0.6 |
0.80 |
0.66 |
0.6 |
5 |
1.2 |
1.0 |
1.1 |
4～25 |
4～30 |
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M3 |
0.5 |
1 |
25 |
6.3 |
5.5 |
5.2 |
0.7 |
1.65 |
0.8 |
1.00 |
0.86 |
0.8 |
6 |
1.45 |
1.20 |
1.25 |
5～30 |
5～30 |
|
(M3.5) |
0.6 |
1.2 |
38 |
8.2 |
7.30 |
6.94 |
0.8 |
2.35 |
1 |
1.20 |
1.06 |
0.9 |
8.5 |
1.7 |
1.4 |
1.5 |
6～35 |
6～45 |
|
M4 |
0.7 |
1.4 |
38 |
9.4 |
8.40 |
8.04 |
1 |
2.7 |
1.2 |
1.51 |
1.26 |
1 |
9.5 |
1.9 |
1.6 |
1.75 |
6～40 |
6～45 |
|
M5 |
0.8 |
1.6 |
38 |
10.4 |
9.30 |
8.94 |
1.2 |
2.7 |
1.2 |
1.51 |
1.26 |
1.3 |
9.5 |
2.4 |
2.0 |
2 |
8～50 |
8～45 |
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M6 |
1 |
2 |
38 |
12.6 |
11.30 |
10.87 |
1.4 |
3.3 |
1.6 |
1.91 |
1.66 |
1.5 |
12 |
2.8 |
2.4 |
2.5 |
8～60 |
8～45 |
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M8 |
1.25 |
2.5 |
38 |
17.3 |
15.80 |
15.37 |
2 |
4.65 |
2 |
2.31 |
2.06 |
2 |
16.5 |
3.7 |
3.2 |
3.2 |
10～80 |
10～45 |
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M10 |
1.5 |
3 |
38 |
20 |
18.30 |
17.78 |
2.3 |
5 |
2.5 |
2.81 |
2.56 |
2.5 |
19.5 |
4.4 |
3.8 |
3.8 |
12～80 |
12～45 |
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技术条件 |
材料 |
螺纹公差 |
机械性能等级 |
产品公差等级 |
表面处理 |
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钢 |
6g |
4.8、5.8 |
A |
不经处理 |
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不锈钢 |
A2-50、A2-70 |
简单处理 |
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有色金属 |
CU2、CU3、AL4 |
简单处理 |
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公称长度l的商品规格系列： mm |
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公称 |
2.5 |
3 |
4 |
5 |
6 |
8 |
10 |
12 |
(14) |
16 |
20 |
25 |
|
min |
2.3 |
2.8 |
3.76 |
4.76 |
5.76 |
7.71 |
9.71 |
11.65 |
13.65 |
15.65 |
19.58 |
24.58 |
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max |
2.7 |
3.2 |
4.24 |
5.24 |
6.24 |
8.29 |
10.29 |
12.35 |
14.35 |
16.35 |
20.42 |
25.42 |
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公称 |
30 |
35 |
40 |
45 |
50 |
(55) |
60 |
(65) |
70 |
(75) |
80 |
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min |
29.58 |
34.5 |
39.5 |
44.5 |
49.5 |
54.05 |
59.05 |
64.05 |
69.05 |
74.05 |
79.05 |
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|
max |
30.42 |
35.5 |
40.5 |
45.5 |
50.5 |
55.95 |
60.95 |
65.95 |
70.95 |
75.95 |
80.95 |
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注：尽可能不采用括号内的规格。 |
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质量kg |
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螺纹规格 |
M1.6 |
M2 |
M2.5 |
M3 |
M3.5 |
M4 |
M5 |
M6 |
M8 |
M10 |
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公称长度/mm |
每1000件钢制品的质量≈ |
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2.5 |
0.062 |
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3 |
0.067 |
0.119 |
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4 |
0.078 |
0.138 |
0.242 |
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5 |
0.090 |
0.156 |
0.272 |
0.395 |
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6 |
0.102 |
0.175 |
0.302 |
0.439 |
0.729 |
1.07 |
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8 |
0.125 |
0.212 |
0.362 |
0.527 |
0.849 |
1.23 |
1.73 |
2.79 |
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10 |
0.145 |
0.249 |
0.422 |
0.615 |
0.969 |
1.39 |
1.97 |
3.14 |
6.89 |
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12 |
0.165 |
0.287 |
0.482 |
0.703 |
1.09 |
1.54 |
2.21 |
3.49 |
7.53 |
11.4 |
|
14 |
0.185 |
0.325 |
0.543 |
0.791 |
1.21 |
1.70 |
2.45 |
3.84 |
8.17 |
12.5 |
|
16 |
0.205 |
0.362 |
0.603 |
0.879 |
1.33 |
1.85 |
2.69 |
4.19 |
8.81 |
13.5 |
|
20 |
|
0.436 |
0.723 |
1.06 |
1.57 |
2.17 |
3.17 |
4.89 |
10.1 |
15.5 |
|
25 |
|
|
0.874 |
1.28 |
1.87 |
2.56 |
3.77 |
5.77 |
11.7 |
18.0 |
|
30 |
|
|
|
1.50 |
2.17 |
2.95 |
4.37 |
6.64 |
13.3 |
20.6 |
|
35 |
|
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|
2.47 |
3.34 |
4.97 |
7.52 |
14.9 |
23.1 |
|
40 |
|
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|
3.73 |
5.57 |
8.39 |
16.5 |
25.6 |
|
45 |
|
|
|
|
|
|
6.16 |
9.27 |
18.1 |
28.1 |
|
50 |
|
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|
6.76 |
10.1 |
19.7 |
30.7 |
|
55 |
|
|
|
|
|
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|
11.0 |
21.3 |
33.2 |
|
60 |
|
|
|
|
|
|
|
11.9 |
22.9 |
35.7 |
|
65 |
|
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|
|
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24.5 |
38.2 |
|
70 |
|
|
|
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|
26.1 |
40.8 |
|
75 |
|
|
|
|
|
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27.7 |
43.3 |
|
80 |
|
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29.3 |
45.8 |
