Stainless steel mounting bracket kit. Composite kits are rated for 500 lb. (227 kg) maximum load. Kit includes four brackets and mounting hardware for all Type 1 Networking wall-mount and COMLINEâ„¢ enclosures. Contain four 12 gauge steel or Type 304 stainless steel external mounting brackets and fasteners. Sealing washers are provided with each kit to maintain Type 4 or 12 rating after installation. Steel mounting brackets are plated.