Use to replace broken, lost, or stripped nuts, bolts and screws around the home or workshop. All kinds of nuts and bolts for various household applications. Machined and tempered low carbon steel. Zinc plated to resist rust and corrosion. Includes: Machine Bolts (#8 x 3/4 in., #8 x1/2 in., #10 x 5/8 in., #10 x 1 in., 1/4 in. x 3/4 in., 1/4 in.x 1-1/4 in., 5/16 in.x1 in., 5/16 in. x 1-1/2 in., 3/8 in.x 5/8 in., 3/8 in. x 1 -1/2 in.), Hex nuts (#8, #10, 1/4 in., 5/16, 3/8 in.), Split washers (1/4 in., 5/16 in., 3/8 in., #8, #10).