DIN 7516 Standard Cross recessed raised countersunk head thread cutting screws (DIN 7516 EE) 的尺寸
自切螺钉 - 十字槽头螺钉
本标准规定了符合 DIN 13-12 规定的 ISO 公制螺纹的热处理六角头和开槽头自切螺钉的尺寸、要求和试验方法,这些螺钉的切削槽从螺钉尖端延伸至螺钉头部,用于在装配过程中切削配合螺纹。有关螺钉头部类型,请参阅各种 DIN 标准;有关一般要求,请参阅 ISO 8992 标准;有关验收要求,请参阅 ISO 3269 标准。本标准旨在确保自切螺钉能够执行上述功能,而不会导致其自身螺纹断裂或变形。为此,本标准规定了螺纹切削能力、表面硬度、抗拉强度和抗扭强度的要求。
尺寸图和技术图
关键尺寸和技术参数
| DIN 7516 - Publication date 09/1995 - Withdrawn - Supersedes DIN 7516 : 11/1986 | ||||
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Screw types and designations |
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| Type | Illustration | type of cross recess as in DIN EN ISO 4757 | Other dimensions as in | Example of designation |
| AE | ![]() |
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DIN EN ISO 7045 | Screw Din 7516 - AE M5x20 St - H |
| DE | ![]() |
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DIN EN ISO 7046-1 | Screw Din 7516 - DE M5x20 St - H |
| EE | ![]() |
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DIN EN ISO 7047 | Screw Din 7516 - EE M5x20 St - H |
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Din 7516 - 1995 Range of commercial sizes and core hole diameters |
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| d thread size | M3 | M4 | M5 | M6 | M8 | |
| nominal length l | ||||||
| 6 | X | |||||
| 8 | X | X | ||||
| 10 | X | X | X | |||
| 12 | X | X | X | X | ||
| 14 | X | X | X | X | X | |
| 16 | X | X | X | X | X | |
| 18 | X | X | X | X | X | |
| 20 | X | X | X | X | X | |
| 22 | X | X | X | X | X | |
| 25 | X | X | X | X | ||
| 30 | X | X | X | |||
| 35 | X | X | ||||
| 40 | X | |||||
|
Core hole diameter |
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| dh | 2.7 | 3.6 | 4.5 | 5.5 | 7.4 | |

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