5/16"-24 Plain Steel Fine Thread Left Hand Hex Nuts HNS-191 (8 pcs.)

Diameter: 5/16"
Thickness: 17/64"
Material: Steel
Finish: Plain
Driver Type: 1/2" Wrench
Thread Size: 24 (Fine)
Style: Left Hand Thread
Type: Hex Nut

Box of 8.

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