Crown Bolt 27872#10-32 x 1/2 Inch Zinc-Plated Steel Round-Head Combination Machine Screws, 100-Count Zinc-plated #10-32 x 1/2 inch round head combo drive machine screw For general applications #10-32 body diameter and thread pitch 1/2-inch fastener length Use with bolt of the same diameter, thread pitch, grade, and finish