5/16"X1 3/4" Hex Bolt, Nut, & Washer Assembly (Hot Dip Galvanized)

5/16 X 1 3/4 inch hot dipped galvanized hex bolts were originally used in all Alumi-Span stringer brackets prior to 2004. 3/8 is now the size used on everything that Alumi-Span offers.