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| 十字槽半沉头自钻自攻螺钉 |
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材料：钢 20Mn、15MnB
表面硬度:≥560 HV0.3
L公差:js17
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GB/T 15856.3-2002 ( ISO 15483-1999, /) |
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螺纹规格 Thread Spec |
dp ≈ |
dk |
k max |
槽号 slot |
m |
L |
|
max |
min |
H-Tape |
Z-Tape |
|
ST 2.9 |
2.3 |
5.5 |
5.2 |
1.7 |
1 |
3.4 |
3.3 |
13/16/19 |
|
ST 3.5 |
2.8 |
7.3 |
6.9 |
2.35 |
2 |
4.8 |
4.8 |
13/16/19/22/25 |
|
ST 4.2 |
3.6 |
8.4 |
8 |
2.6 |
2 |
5.2 |
5.2 |
13/16/19/22/25/32/38 |
|
ST 4.8 |
4.1 |
9.3 |
8.9 |
2.8 |
2 |
5.4 |
5.6 |
16/19/22/25/32/38/45/50 |
|
ST 5.5 |
4.8 |
10.3 |
9.9 |
3 |
3 |
6.7 |
6.6 |
19/22/25/32/38/45/50 |
|
ST 6.3 |
5.8 |
11.3 |
10.9 |
3.15 |
3 |
7.3 |
7.2 |
19/22/25/32/38/45/50 |
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