1/2"-13 Zinc Grade 5 Heavy Hex Nuts HNS5-163 (152 pcs.)

Diameter: 1/2"
Diameter 2: 1"
Thickness: 7/16"
Material: Steel
Finish: Zinc
Driver Type: 7/8" Wrench
Thread Size: 13 (Coarse)
Hardness: Grade 5
Style: Heavy
Type: Hex Nut

Box of 152.

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