1. Made of quality 304 stainless steel, anti-rust and durable. 2. Square cage nut design for racks and cabinets with square holes.3. Phillips truss-head screw designed for easily to install.4. Convenient to have on hand for installing server, network, and other equipment securely into your storage cabinet or server rack.5. Nuts, screws are included.Specification:Product Name: Cage NutPackage Content: 30pcs x Cage Nut, 30pcs x Mounting ScrewsMain Color: Silver ToneMaterial: 304 Stainless SteelWeight: 305gThread Dia: M6Thread Length: 16mm / 0.63-inchScrew Total Length: 20mm / 0.79-inchCage Nut Size: 13 x 12.5 x 9.2mm / 0.51-inch x 0.5-inch x 0.36-inch (L*W*H)