Galvanized steel
Stainless steel A2
| d | St 2.9 | St 3.5 | St 3.9 | St 4.2 | St 4.8 | St 5.5 | St 6.3 |
| f | 0.7 - 1.9 | 0.7 - 2.25 | 0.7 - 2.4 | 1.75 - 3.0 | 1.75 - 4.4 | 1.75 - 5.25 | 2.0 - 6.0 |
| dp | 2.3 | 2.8 | 3.1 | 3.6 | 4.1 | 4.8 | 5.8 |
| dc | 6.3 | 8.3 | 8.3 | 8.8 | 10.5 | 11.0 | 13.5 |
| k | 2.8 | 3.4 | 3.4 | 4.1 | 4.3 | 5.4 | 5.9 |
| s | 4 | 5.5 | 5.5 | 7 | 8 | 8 | 10 |
Self-tapping screw (screw) DIN 7504K with a hexagonal head has a drill-shaped tip and a full thread, which allows joint work with sheet metal, as well as fixing on wooden materials without the use of a washer.
The DIN 7504K self-tapping screw (screw) is made of galvanized steel and A2 stainless steel.
Analogues of DIN 571:
GOST 11473-75 – screws with a hexagonal head with a diameter of 6 to 20 mm.
Marking:
d – thread diameter
k – height of the head of the screw-bolt
s – hex head size turnkey
L – screw length
b – thread length