Hex Head Cap Screw Assortment, Metal Box, Container Material Metal, Steel, Zinc Plated, Flat Washers Included (100) 1/4 in, (100) 3/8 in, (100) 5/16 in, Hex Nuts Included Hex Nuts: (100) 1/4 In.-20, (100) 5/16 In.-18, (100) 3/8 In.-16, Lock Washers...