DIN 7504 K
DIN 7504K – Hex Washer head Self Drilling Screws with or without EPDM washer, known as Roofing Screws.
Dimensionn of DIN 7504 K as below:
 |
| d | 3,5 | 3,9 | 4,2 | 4,8 | 5,5 | 6,3 |
| s | 5,5 | 5,5 | 7 | 8 | 8 | 10 |
| dc max. | 8,3 | 8,3 | 8,8 | 10,5 | 11 | 13,2 |
| k min | 3,2 | 3,2 | 4 | 4,15 | 5,15 | 6,15 |
| k max. | 3,45 | 3,45 | 4,25 | 4,45 | 5,45 | 6,45 |
| dk max. | 2,8 | 3,1 | 3,6 | 4,1 | 4,8 | 5,8 |
* All size in mm ;
* Specification: Hex Washer Head Self-drilling Screws ;