Crown Bolt 80340 3/8-Inch by 2-1/2-Inch Coarse Thread Stainless-Steel Carriage Bolts, 15-Pack Stainless Steel 3/8-Inch by 2-1/2-Inch Carriage Bolts For General Applications 3/8-Inch-16 Body Diameter And Thread Pitch 2-1/2-Inch Fastener Length Coarse Thread