Crown Bolt 82940 00100 1/4-Inch 20 by 3-1/2-Inch Coarse Thread Zinc Plated Steel Hex Bolts, 50-Pack Zinc Plated 1/4-Inch X 3-1/2-Inch Hex Bolt Coarse USS For General Applications 1/4-Inch Body Diameter And Thread Pitch 3-1/2-Inch Fastener Length Zinc Plated Finish