Crown Bolt 85510 1/4 Inch-20 x 2-1/4 Inch Zinc-Plated Coarse Thread Grade 5 Cap Screws, 25-Count Zinc-plated 1/4 inch-20 x 2-1/4 inch cap screws grade 5 For general applications 1/4 inch-20 body diameter and thread pitch 2-1/4-inch fastener length Coarse thread