Diameter: 5/8"
Diameter 2: 1-3/16"
Thickness: 39/64"
Material: Steel
Finish: Zinc
Driver Type: 1-1/16" Wrench
Thread Size: 11 (Coarse)
Hardness: Grade 2
Style: Heavy
Type: Hex Nut

Box of 8.

Hex nuts are used to secure and fasten the threaded portion of most machine screws and bolts.