9/16"-12 x 6" Zinc Plated Grade 5 Steel Coarse Thread Hex Cap Screws CSHS5-556
Diameter: 9/16" Length: 6" Material: Steel Finish: Zinc Head Style: Hex (13/16" Wrench) Thread Size: 12 (Coarse) Thread Length: 1-5/8" Hardness: Grade 5 Type: Cap Screw A hex cap screw has a hexagonal head, designed to be driven by a wrench.