Hexagonal nuts with collar (1.5 d high)
DIN 6331
forged, T-slot guide cleared, rolled thread, stamped with AMF logo and strength class. M6 to M12 tempered to strength class 10.9, M14 to M42 tempered to strength class 8.8.
* Size not included in DIN, dimensions similar to DIN
Benefits of thread rolling:
- no interrupted fibre orientation
- reduced notch sensitivity
- very good roughness values on the thread flanks and in the base radius