| 六角法兰面自钻自攻螺钉 |
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材料：钢 20Mn、15MnB
表面硬度:≥560 HV0.3 不锈钢 A2
不锈铁 410
L公差:js17
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GB/T 15856.4-2002 ( ISO 15486.4-2002, /) |
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螺纹规格 Thread Spec |
dp |
dc |
S |
K max |
L |
|
max |
min |
公称=max |
min |
|
ST 3.5 |
2.8 |
8.3 |
7.6 |
5.5 |
5.32 |
3.45 |
13/16/19/22/25 |
|
ST 4.2 |
3.6 |
8.8 |
8.2 |
7 |
6.78 |
4.25 |
13/16/19/22/25/32/38 |
|
ST 4.8 |
4.1 |
10.5 |
9.8 |
8 |
7.78 |
4.45 |
16/19/22/25/32/38/45/50 |
|
ST 5.5 |
4.8 |
11 |
10 |
8 |
7.78 |
5.45 |
19/22/25/32/38/45/50 |
|
ST 6.3 |
5.8 |
13.2 |
12.2 |
10 |
9.78 |
5.45 |
19/22/25/32/38/45/50 |
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