Diameter: 8mm
Length: 40mm
Material: Steel
Finish: Zinc
Head Style: Hex (#13 Wrench)
Thread Size: 1.0mm (Fine)
Thread Length: 40mm
Hardness: Class 8.8
Type: Cap Screw
Specifications: DIN 961
A hex cap screw has a hexagonal head, designed to be driven by a wrench.