The product is a high-quality M16-1.5x60 Alloy Steel Allen Head Socket Cap Screw with a fine thread and Grade 12.9 rating. This screw, manufactured by McMaster-Carr, is designed for industrial use and features a black oxide finish for corrosion resistance. With a hex-key drive style and metric system of measurement, this single screw is ideal for fastening applications requiring a strong and durable material like steel. Made in China, this Socket Head Cap Screw provides a reliable and secure fastening solution for various industrial applications. Representative item is shown. New without original packaging, which is only shown for reference. Overall length 2.9 inches. Outer diameter 0.9 inches. Item weight 5 oz. No returns if installed. Please review our business policies in our store for information regarding returns, shipping and warranties.