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米制和美制焊接方螺母 [Table 3] BS 7670-1 - 1993

选择规格尺寸 点击↓

M4

M5

M6

M8

M10

7/16 20UNF-2B

M12

BS  7670-1 - 1993 米制和美制焊接方螺母  [Table 3]

尺寸单位: 毫米(mm)/英寸(inch)
英标BS 7670-1 - 1993 BS7670-1 7670-1BS 米制和美制焊接方螺母  [Table 3]
BS  7670-1 - 1993 米制和美制焊接方螺母  [Table 3]
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螺纹规格
d
M4 M5 M6 M8 M10 7/16
20UNF-2B
M12
P 螺距
b 最大值
最小值
d2 最大值
最小值
d3 最大值
e 最小值
h 最大值
最小值
m 最大值
最小值
s 最大值
最小值
0.7 0.8 1 1.25 1.5 - 1.75
0.95 1.15 1.35 1.65 2 2.2 2.2
0.65 0.85 1.05 1.35 1.6 1.8 1.8
5.18 6.18 7.72 10.22 12.77 13.77 13.77
5 6 7.5 10 12.5 13.5 13.5
4.2 5.25 6.3 8.4 10.5 11.7 12.6
9 12 13 18 22 25 25
0.7 0.9 0.9 1.1 1.3 1.5 1.5
0.5 0.7 0.7 0.9 1.1 1.3 1.3
3.5 4.2 5 6.5 8 9 9.5
3.2 3.9 4.7 6.14 7.64 8.64 9.14
7 9 10 14 17 19 19
6.64 8.64 9.64 13.57 16.57 18.48 18.48

技术条件和引用标准

材料
螺纹公差(ISO 公制)
螺纹公差(Unified)
机械性能
允许偏差
Finish
Acceptability
-
Steel with a carbon content not greater than 0.23 %.
Conforming to class 6H of BS 3643-1:1981 and BS 3643-2 :1981.
Conforming to class 2B of BS 1580-1:1962 & BS 1580-2 :1962.
Conforming to material property class 4, 6 or 8 of BS EN 20898-2:1992
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
In accordance with BS 6587:1985
① Both before and after welding.
② The material property class shall be marked on the nuts by the indented method only, and shall be applied to the applied to the side or upper (unwelded ) face
only in such a way that it does not interfere with the quality of the surface.
③ Alternative surface finishes (e.g. electroplating) may be applied, if agreed between the purchaser and supplier. Some surface finishes are unsuitable for welding.
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注:技术数据仅供参考,以官方原件为准!
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