Features Sturdy and Durable: These screws and nuts are made of selected nickel-plated iron, featuring high strength, durable and stable, great practicality. Can Be Removed And Repositioned: M5/M6 cage nuts are quick and easy to install, can be removed and repositioned, and fit our needs well. Easy To Use: These rack screws & cage nuts assortment kits fit in square or rectangular holes and are the best alternative to weld nuts. Applicable Scenarios: Network cabinet rack screws are applicable to a wide range of scenarios, and can be used as preferred fasteners for railways, vehicle electrical cabinets, network cabinets, and mechanical molds. Easy to Carry: Rack mount cage nuts are manufactured in strict accordance with the standard, with reliability and high precision, small size, light weight, easy to carry and convenient to use. Features: 1.Made of nickle plated iron, these screws and nuts are sturdy and durable. 2.These cage screws and nuts are installed in square or rectangle holes. 3.Fast and convenient to install, they can be disassembled and repositioned. 4.They are the best choice to replace welding nuts. 5.Preferred fasteners for electrical cabinets of railway, vehicles, network cabinets, mechanical mold, etc. Specification: Material: Nickle plated iron Size: M5*16, M5*20, M6*16(Optional) Quantity: 20pcs Weight: 160g~208g / 5.6oz~7.3oz (approx.) Package list: 20 * Screws and Nuts Package List