Crown Bolt 85580 3/8 Inch-16 x 6 Inch Zinc-Plated Coarse Thread Grade 5 Cap Screws, 25-Count Zinc-plated 3/8 inch-16 x 6 inch cap screws grade 5 For general applications 3/8 inch-16 body diameter and thread pitch 6-inch fastener length Coarse thread