Diameter: 5mm
Diameter 2: 9mm
Thickness: 3.8mm
Material: Steel
Finish: Zinc
Driver Type: #8 Wrench
Thread Size: 0.5mm (Fine)
Hardness: Class 6 or Class 8
Type: Hex Nut
Specifications: DIN 934
Box of 100.
Hex nuts are used to secure and fasten the threaded portion of most machine screws and bolts.