Minerallac Sheet Metal Screw, Self-Tapping, Measurement System: Imperial, #10-12, 1-1/2 in Overall Length, Round Washer, Square Drive, Steel, Zinc Plated, #2 or 5/16 in Hex Drive, 0.137 in H x 0.359 in W Head, Class A, Silver The Cully brand's fasteners, anchors, tools, safety products, paints and chemicals are some of the best in the business. The brand also offers a broad range of tamperproof, stainless steel, brass, silicone bronze and specialty fasteners to meet the requirements of numerous applications. Whether it is industrial, commercial, residential, maintenance, repair, new construction, or renovation, Cully has quality products to get the job done. A brand of the Chicagoland based Minerallac Company, Cully serves as a solution provider to distributor partners. From an extensive range of Cully screws to the full scope of Cully tools, the Cully brand provides a broad product offering to meet distributors needs. To maintain its solid reputation as a solution provider for distributor partners, Minerallac continues to add new products to the Cully brand to enhance its rich product offering.