Cylindrical Allen screw with hexagonal interior in stainless steel
DIN 912 = ISO 4762.
This standard applies to screws with partial threads in which standard screws must have the quality type of stainless steel marked on the head. This can be A-2 = ASI-304 or A-4 = ASI-316. Furthermore, the tensile strength is usually 70 or 80 N/mm2.
The tensile breaking load: Rm(N/mm2)>-Rm=1st and 2nd figure fra x 100.
Stainless steel grades A, A-2, A-4 and others upon request.
| AISI | A | DIN EN | DESIGNACION
| 304 | A2 | 1.4301 | X5CrNi 18-10
| 316 | A4 | 1.4401 | X5CrNiMo 17-12-2
