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米制电阻凸焊用螺钉 [Table 1] BS 7670-1 - 1993

选择规格尺寸点击↓

M10

M12

尺寸单位: 毫米(mm)

英标BS 7670-1 - 1993 BS7670-1 7670-1BS 米制电阻凸焊用螺钉 [Table 1]

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公差公制螺纹极限尺寸米/英制螺纹对照螺纹直径与受力截面积毛坯直径

螺纹规格
d

M10

M12

P	螺距
a	最大值
d_k	最大值
d_k	最小值
d_f	最小值
d₁	最大值
d₁	最小值
d₂	最大值
d₂	最小值
V	最大值
V	最小值
k	最大值
k	最小值
r	最大值

0.5	0.7	0.8	1	1.25	1.5	1.75
1.25	1.75	2	2.5	3.13	3.75	4.38
6.37	8.45	10.45	12.55	16.55	20.65	24.65
5.63	7.55	9.55	11.45	15.45	19.35	23.35
5.13	7.05	9.05	10.95	14.95	18.85	22.85
4.98	6.48	8.08	9.58	12.7	15.7	18.7
4.5	6	7.5	9	12	15	18
1.15	1.45	1.75	2.05	2.65	3.25	3.9
0.9	1.2	1.5	1.8	2.4	3	3.6
0.55	0.7	0.85	1	1.3	1.6	1.9
0.35	0.5	0.65	0.8	1.1	1.4	1.7
1.32	1.72	2.12	2.52	3.35	4.15	4.95
1.07	1.47	1.87	2.27	3.05	3.85	4.65
0.4	0.4	0.5	0.6	0.8	0.8	0.8

①,公差符合：BS 6322-1:1982。

技术条件和引用标准

材料
螺纹公差
机械性能 ^①
允许偏差
Finish
Acceptability
-

Steel with a carbon content not greater than 0.23 %.

Conforming to class 6g of BS 3643-1:1981 and BS 3643-2 :1981.

Conforming to material property class 4.8 , 5.8 or 8.8 of BS EN 20898-1:1992 , test programme B^②

Conforming to product grade A of BS 6322-1:1982.

As processed, with a lubricant, but free from scale and excessive oxide, as rolled, unless otherwise agreed between the purchaser and supplier^③

In accordance with BS 6587:1985

① Both before and after welding.
② The material property class shall be marked on the bolts by the indented method only.
③ Alternative surface finishes (e.g. electroplating) may be applied, if agreed between the purchaser and supplier. Some surface finishes are unsuitable for welding.

引用参考

GB /T 1172 - 1999

黑色金属硬度及强度换算值

GB /T 5267.1 - 2002

镀锌、镀镍、镀镉、复合镀等层镀层盐雾腐蚀的防护性能

GB /T 193 - 2003

普通螺纹（一般用途米制螺纹）- 直径与螺距系列 (ISO 261: 1998, MOD)

注：技术数据仅供参考，请以官方原件为准！

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