ASMC Industrial offers a comprehensive selection of industrial, automotive, and construction fasteners. Our parts are of high-quality at low prices. Products are guaranteed to meet the specifications to which they are manufactured. Specifications allow for tolerances in dimension and shape, which can vary from lot to lot. Features10000 PieceSpecificationsFastener Type: Sheet Metal Screw Square Drive Flat Head Undercut Type ASize: #8-15 x 1/2Diameter/Nominal Size: #8Length: 1/2Material: Low Carbon SteelFinish: Zinc PlatedThread Pitch: 15Thread Direction: RightHead Type: Flat UndercutDrive Type: Internal SquareThread Coverage: FullScrew Type: AWeight: 22.11 lbs