5/16 -18 18-8 Stainless Steel Coarse Thread Hex Nuts

Diameter: 5/16 Diameter 2: 9/16 Thickness: 9/32 Material: Stainless Steel Driver Type: 1/2 Wrench Thread Size: 18 (Coarse) Hardness: 18-8 Type: Hex Nut Hex nuts are used to secure and fasten the threaded portion of most machine screws and bolts.