NF E25-603 Standard Cross recessed pan head wood screws 的尺寸
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圆头十字槽Z型木螺钉 - 符号R Z
本标准规定了公称直径为2.5至6毫米的圆头十字槽Z型木螺钉的特性。
尺寸图和技术图
关键尺寸和技术参数
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Dimensions in mm - source NF 25-603 |
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| Publication date: 05/1984 | |||||||
| d thread size | 2.5 | 3.0 | 3.5 | 4.0 | 4.5 | 5.0 | 6.0 |
| ds max= nom | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 6 |
| ds min | 2.1 | 2.6 | 3.02 | 3.52 | 4.02 | 4.52 | 5.52 |
| dk max | 4.5 | 5.5 | 6.5 | 7 | 8 | 9 | 11 |
| dk min | 4.2 | 5.2 | 6.1 | 6.6 | 7.6 | 8.6 | 10.6 |
| k min | 1.95 | 2.25 | 2.25 | 2.75 | 3.2 | 3.8 | 4.3 |
| k max | 2.2 | 2.5 | 2.5 | 3 | 3.5 | 4 | 4.5 |
| Cross recess nr | 1 | 1 | 2 | 2 | 2 | 2 | 3 |
| ≈ m | 3 | 3 | 4 | 4.3 | 4.5 | 5.3 | 6.2 |