Crown Bolt 85790 1/4 Inch-20 x 3/4 Inch Yellow Zinc-Plated Coarse Thread Grade 8 Cap Screws, 25-Count Yellow Zinc-plated 1/4 inch-20 x 3/4 inch cap screws grade 8 For general applications 1/4 inch-20 body diameter and thread pitch 3/4-inch fastener length Grade 8