4mm-0.7 x 40mm Black Oxide Class 12.9 Steel Coarse Thread Knurled Head Hex Socket Cap Screws

Diameter: 4mm
Length: 40mm
Material: Steel
Finish: Black Oxide
Head Style: Knurled Socket (Hex)
Thread Size: 0.7mm (Coarse)
Thread Length: Partial
Hardness: Class 12.9
Type: Socket Cap Screw
Specifications: DIN 912

Box of 10.

A socket cap screw is a type of cap screw with a hexagonal recessed drive. A hex key is required to tighten or loosen a socket screw. Socket screws are commonly used in assemblies that do not provide sufficient clearance for a conventional wrench or socket.