Complete Package: This set includes 2 sets of 8U rack rails, 40 sets of M6 x 20mm rack mount screws, 40 sets of M6 cage nuts, and 20 sets of self-tapping rack rail installation screws for a comprehensive installation solution. Universal Compatibility: Designed for 19 inch rack mount equipment, these rack rails are ideal for installing servers, network switches, and audio studio rack devices. Durable Construction: Made from heavy-duty cold rolled steel with a black electro-static powder coated finish, these rack rails offer enhanced durability and a professional look that will last for years. Easy Setup: Enjoy a straightforward installation process with the included M6 rack mount screws, ensuring you can quickly and efficiently set up your server and studio racks. Secure Assembly: Our M6 rack screws and cage nuts provide a tight and secure fit, ensuring your equipment is safely mounted and stable, perfect for all your studio and server rack projects.