DIN 968 Standard Tapping screws, cross recessed pan head with collar 的尺寸
十字槽盘头带凸缘自攻螺钉
本标准规定了产品等级A、螺纹尺寸ST2.9至ST6.3的十字槽盘头带凸缘自攻螺钉的要求。
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 968 |
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| Publication date 05/2008 - Supersedes DIN 968 12/2002 | ||||||||
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thread size |
a
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k nom=max
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dK nom=max.
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c max | a mx | cross recess nr. | Cross recess | |
| Type H m reference | Type Z m reference | |||||||
| ST 2.9 | 1.1 | 2.35 | 7.5 | 0.8 | 1.1 | 1 | 3 | 2.9 |
| ST 3.5 | 1.3 | 2.6 | 9 | 0.9 | 1.3 | 2 | 4.2 | 3.9 |
| ST 3.9 | 1.3 | 2.8 | 10 | 1.1 | 1.3 | 4.4 | 4.1 | |
| ST 4.2 | 1.4 | 3.05 | 10 | 1.1 | 1.4 | 4.6 | 4.3 | |
| ST 4.8 | 1.6 | 3.55 | 11.5 | 1.35 | 1.6 | 5 | 4.7 | |
| ST 5.5 | 1.8 | 3.8 | 13 | 1.6 | 1.8 | 3 | 6.5 | 6.2 |
| ST 6.3 | 1.8 | 4.55 | 14.5 | 1.8 | 1.8 | 7.1 | 6.7 | |
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DIN 968-2008 - Approximate mass, in kg x1000 pcs, (ρ=7,85 kg/dm3) - commercial lengths |
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| thread size |
ST2.9
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ST3.5 |
ST4.2 |
ST4.8 |
ST5.5
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ST6.3
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| nominal length l | ||||||
| 4.5 | ||||||
| 6.5 | 0.602 | |||||
| 9.5 | 0.710 | 1.04 | 1.55 | 2.28 | ||
| 13 | 0.836 | 1.22 | 1.79 | 2.61 | 3.77 | 4.9 |
| 16 | 0.944 | 1.37 | 2 | 2.89 | 4.15 | 5.44 |
| 19 | 1.05 | 1.52 | 2.21 | 3.17 | 4.53 | 5.98 |
| 22 | 1.67 | 2.42 | 3.45 | 4.91 | 6.52 | |
| 25 | 1.83 | 2.63 | 3.73 | 5.29 | 7.06 | |
| 32 | 3.12 | 4.39 | 6.2 | 8.32 | ||
| 38 | 4.95 | 6.98 | 9.4 | |||
| 45 | ||||||
| 50 | ||||||