The Hillman 290133 1/2-Inch Malleable Washer comes in a 5-pound pack with 23 pieces. Made of steel, the washer has a thickness of 0.07 inches and an outside diameter of 1 inch. It is designed for wood usage and features a flat head style with a notched washer type. The fastener size is 1/2 inch with a screw mount. The product is a reliable hardware component suitable for various fastening applications in industrial and business settings.