Socket screws are a type of screw designed and manufactured with a hexagonal (hex) internal drive built into the head. Socket screws are a type of screw designed and manufactured with a hexagonal (hex) internal drive built into the head. They are intended to be tightened and loosened with an allen wrench or hex key, as opposed to a traditional screwdriver.
Size : M2 to M42
Grade : 12.9
Dimensional Specification :
ASME: B18.3.1M
ISO: 4762
Material Specification:
ASTM: A574M