5/16"-18 Nylon Plastic Coarse Thread Toilet Seat Nuts

Diameter: 5/16"
Thickness: 1/4"
Material: Nylon
Driver Type: 1/2" Wrench
Thread Size: 18 (Coarse)
Type: Hex Nut
Hex nuts are used to secure and fasten the threaded portion of most machine screws and bolts.