Diameter: 12mm
Length: 16mm
Material: Steel
Finish: Red Rinsed Zinc
Head Style: Hex (#19 Wrench)
Thread Size: 1.75mm (Coarse)
Thread Length: 16mm
Hardness: Class 8.8
Type: Cap Screw
Specifications: DIN 933

Box of 75.

A hex cap screw has a hexagonal head, designed to be driven by a wrench.