18mm-2.5 x 40mm Zinc Plated Class 8.8 Steel Coarse Thread Hex Cap Screws

Diameter: 18mm
Length: 40mm
Material: Steel
Finish: Zinc
Head Style: Hex (#27 Wrench)
Thread Size: 2.5mm (Coarse)
Thread Length: 40mm
Hardness: Class 8.8
Type: Cap Screw
Specifications: DIN 933

Box of 2.

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