Crown Bolt 86240 1/2 Inch-20 x 2-1/2 Inch Yellow Zinc-Plated Fine Grade 8 Cap Screws, 15-Count Yellow Zinc-plated 1/2 inch-20 x 2-1/2 inch cap screws grade 8 Partially-Threaded For general applications 1/2 inch-20 body diameter and thread pitch 2-1/2-inch fastener length Grade 8