Crown Bolt 07970 3/8 Inch-16 x 5-1/2 Inch Coarse Thread Zinc-Plated Steel Hex Bolts, 25-Count Zinc-plated 3/8 inch-16 x 5-1/2 inch hex bolt coarse USS For general applications 3/8 inch-16 body diameter and thread pitch 5-1/2-inch fastener length Zinc-plated finish