大半圆头带榫螺栓(GB/T 15—2013)
大半圆头带榫螺栓(GB/T 15—2013)
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大半圆头带榫螺栓(GB/T 15—2013) mm |
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螺纹末端按GB/T 2规定；无螺纹部分杆径约等于螺纹中径或螺纹大径 |
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标记示例： 螺纹规格d＝M12、公称长度l＝80mm、性能等级为4.8级、不经表面处理的大半圆头带榫螺栓的标记： 螺栓 GB/T 15 M12×80 |
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螺纹规格 d |
b |
dk |
h |
K |
r min |
R |
X max |
l的范围 |
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l≤125 |
125＜l≤200 |
max |
min |
max |
min |
max |
min |
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M6 |
18 |
— |
15.1 |
13.3 |
3.5 |
2.9 |
3.48 |
2.7 |
0.5 |
11 |
2.5 |
20～60 |
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M8 |
22 |
28 |
19.1 |
17.3 |
4.3 |
3.5 |
4.48 |
3.6 |
0.5 |
14 |
3.2 |
20～80 |
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M10 |
26 |
32 |
24.3 |
22.16 |
5.5 |
4.5 |
5.48 |
4.6 |
0.5 |
18 |
3.8 |
30～100 |
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M12 |
30 |
36 |
29.3 |
27.16 |
6.7 |
5.5 |
6.48 |
5.6 |
0.8 |
22 |
4.3 |
35～120 |
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(M14) |
34 |
40 |
33.6 |
31 |
7.7 |
6.3 |
7.9 |
6.55 |
0.8 |
22 |
5 |
35～140 |
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M16 |
38 |
44 |
36.6 |
34 |
8.8 |
7.2 |
8.9 |
7.55 |
1 |
26 |
5 |
50～160 |
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M20 |
46 |
52 |
45.6 |
43 |
9.9 |
8.1 |
10.9 |
9.55 |
1 |
32 |
6.3 |
60～200 |
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M24 |
54 |
60 |
53.9 |
50.8 |
12 |
10 |
13.1 |
11.45 |
1.5 |
34 |
7.5 |
80～200 |
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技术条件 |
材料 |
螺纹公差 |
机械性能等级 |
产品等级 |
表面处理 |
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钢 |
8g |
3.6、4.8 |
C级 |
1．不经处理；2．氧化；3．镀锌钝化 |
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公称长度l的商品规格系列： mm |
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公称 |
20 |
25 |
30 |
35 |
40 |
45 |
50 |
(55) |
60 |
(65) |
70 |
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min |
18.95 |
23.95 |
28.95 |
33.75 |
38.75 |
43.75 |
48.75 |
53.50 |
58.50 |
63.50 |
68.50 |
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max |
21.05 |
26.05 |
31.05 |
36.25 |
41.25 |
46.25 |
51.25 |
56.50 |
61.50 |
66.50 |
71.50 |
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公称 |
80 |
90 |
100 |
110 |
120 |
130 |
140 |
150 |
160 |
180 |
200 |
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min |
78.50 |
88.25 |
98.25 |
108.25 |
118.25 |
128.0 |
138.0 |
148.0 |
156.0 |
176.0 |
195.4 |
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max |
81.50 |
91.75 |
101.75 |
111.75 |
121.75 |
132.0 |
142.0 |
152.0 |
164.0 |
184.0 |
204.6 |
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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 |
M6 |
M8 |
M10 |
M12 |
M14 |
M16 |
M20 |
M24 |
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公称长度/mm |
每1000件钢制品的质量 ≈ |
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20 |
5.25 |
10.31 |
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25 |
6.11 |
11.87 |
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30 |
6.96 |
13.42 |
23.33 |
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35 |
7.82 |
14.98 |
25.79 |
40.51 |
55.12 |
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40 |
8.68 |
16.53 |
28.24 |
44.08 |
59.99 |
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45 |
9.53 |
18.09 |
30.70 |
47.64 |
64.87 |
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50 |
10.39 |
19.64 |
33.16 |
51.20 |
69.74 |
98.47 |
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55 |
11.25 |
21.20 |
35.61 |
54.76 |
74.62 |
105.0 |
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60 |
12.11 |
22.75 |
38.07 |
58.33 |
79.49 |
111.6 |
187.6 |
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65 |
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24.31 |
40.52 |
61.89 |
84.36 |
118.1 |
197.9 |
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70 |
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25.86 |
42.98 |
65.45 |
89.24 |
124.6 |
208.1 |
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80 |
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28.97 |
47.89 |
72.57 |
98.99 |
137.7 |
228.6 |
333.6 |
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90 |
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52.80 |
79.70 |
108.7 |
150.8 |
249.1 |
363.1 |
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100 |
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57.71 |
86.82 |
118.5 |
163.9 |
269.5 |
392.6 |
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110 |
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93.95 |
128.2 |
177.0 |
290.0 |
422.1 |
|
120 |
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101.1 |
138.0 |
190.1 |
310.5 |
451.6 |
|
130 |
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147.7 |
203.2 |
331.0 |
481.1 |
|
140 |
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157.5 |
216.2 |
351.4 |
510.6 |
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150 |
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229.3 |
371.9 |
540.1 |
|
160 |
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242.4 |
392.4 |
569.6 |
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180 |
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433.3 |
628.6 |
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200 |
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474.3 |
687.6 |
