UNI 8110 Standard Hexagon head thread rolling screws 的尺寸
六角头自攻螺钉
本标准规定了用于连接的六角头自攻螺钉的特性。这种螺纹连接在不更换螺钉的情况下,由于螺钉与螺母之间的间隙为零,因此具有良好的抗撕裂性能。此外,配合部件之间的摩擦力进一步增加了旋出扭矩。有关孔径的准备,请参见 UNI 8108。
尺寸图和技术图
关键尺寸和技术参数
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Dimensions in mm - source UNI 8110 Publication date: 1993 |
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| d thread size | M 3 | M 3.5 | M 4 | M 5 | M 6 | M 8 |
| P | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1.25 |
| s max | 5 | 5.55 | 7 | 8 | 10 | 13 |
| s min | 4.82 | 5.32 | 6.78 | 7.78 | 9.78 | 12.73 |
| e min | 5.45 | 6.01 | 7.66 | 8.87 | 11.05 | 14.38 |
| k max | 1.87 | 2.67 | 2.67 | 3.42 | 5.25 | 6.25 |
| k min | 1.62 | 2.42 | 2.42 | 3.12 | 4.95 | 5.95 |
| r max | 0.45 | 0.55 | 0.6 | 0.7 | 0.9 | 1.2 |
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UNI 8110 ≈ commercial items |
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| d thread size | M 3 | M 3.5 | M 4 | M 5 | M 6 | M 8 |
| nominal length l | ||||||
| 5 | X | |||||
| 6 | X | X | ||||
| 8 | X | X | X | X | ||
| 10 | X | X | X | X | X | X |
| 12 | X | X | X | X | X | |
| 14 | X | X | X | X | X | |
| 16 | X | X | X | X | X | |
| 20 | X | X | X | X | X | |
| 25 | X | X | X | X | ||
| 30 | X | X | X | X | ||
| 35 | X | X | X | X | ||
| 40 | X | X | X | |||
| 45 | X | X | X | |||
| 50 | X | X | X | |||