DIN 7972 Standard Tapping screws, countersunk slotted flat head 的尺寸
技术历史及DIN 7972的国际对应物
此项规范已取消
这项规范已被取代 DIN EN ISO 1482
沉头开槽自攻螺钉
尺寸图和技术图
关键尺寸和技术参数
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Dimensions in mm - source DIN 7972Withdrawn Publication date: 08/1990 |
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Ø
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P |
dk max
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dk min |
k
|
t max
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t min |
n max
|
n min |
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ST 2.2
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0.8 | 4.3 | 4 | 1.3 | 0.6 | 0.4 | 0.6 | 0.66 |
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ST 2.9
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1.1 | 5.5 | 5.2 | 1.7 | 0.75 | 0.5 | 0.8 | 0.86 |
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ST 3.5
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1.3 | 6.8 | 6.44 | 2.1 | 0.95 | 0.6 | 1 | 1.06 |
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ST 3.9
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1.3 | 7.5 | 7.014 | 2.3 | 1.05 | 0.7 | 1 | 1.06 |
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ST 4.2
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1.4 | 8.1 | 7.74 | 2.5 | 1.15 | 0.75 | 1.2 | 1.26 |
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ST 4.8
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1.6 | 9.5 | 9.14 | 3 | 1.35 | 0.85 | 1.2 | 1.26 |
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ST 5.5
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1.8 | 10.8 | 10.37 | 3.4 | 1.5 | 1 | 1.6 | 1.66 |
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ST 6.3
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1.8 | 12.4 | 11.97 | 3.8 | 1.75 | 1.2 | 1.6 | 1.66 |
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DIN 7972 - ≈ weigth, in kg x1000 pcs, (ρ=7,85 kg/dm3) - commercial lengths |
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| thread size | ST 2 | ST 2.9 | ST 3.5 | ST 3.9 | ST 4.2 | ST 4.8 | ST 5.5 | ST 6.3 |
| nominal length l | ||||||||
| 6.5 | 0.14 | 0.242 | ||||||
| 9.5 | 0.2 | 0.35 | 0.548 | 0.858 | 0.775 | 1.10 | ||
| 13 | 0.27 | 0.476 | 0.722 | 0.88 | 1.02 | 1.45 | 2.11 | 2.53 |
| 16 | 0.33 | 0.584 | 0.871 | 1.07 | 1.23 | 1.75 | 2.9 | 3.07 |
| 19 | 0.692 | 1.02 | 1.26 | 1.44 | 2.05 | 2.87 | 3.61 | |
| 22 | 1.17 | 1.45 | 1.65 | 2.35 | 3.26 | 4.15 | ||
| 25 | 1.32 | 1.64 | 1.86 | 2.65 | 3.65 | 4.69 | ||
| 32 | 2.35 | 3.35 | 4.56 | 5.95 | ||||
| 38 | 3.95 | 5.34 | 7.03 | |||||