3/8″-16 x 1/2″ Zinc Plated Grade 8 Steel Coarse Thread Hex Cap Screws
Diameter: 3/8″ Length: 1/2″ Material: Steel Finish: Blue Rinsed Zinc Head Style: Hex (9/16″ Wrench) Thread Size: 16 (Coarse) Thread Length: 1/2″ Hardness: Grade 8 Type: Cap Screw A hex cap screw has a hexagonal head, designed to be driven by a wrench.