Duro Steel Building 1100 Count 5/16"x 3/4" New Arch Grain Bin Hex Style Bolts,nuts,washers Package of 1100-5/16" by 3/4" Replacement Bolts Arch Building Grain Bin Hex Style Bolts Nuts Washer 5/16" x 3/4". 200 Bolts/Nylon Washers/Lock Nuts Per Bag SHIPPING INCLUDED TO THE LOWER 48 STATES ONLY