The rack mount nut screw set is convenient and practical, with excellent texture, and without being easily damaged. The craftsmanship can serve you well without breaking easily. This is a very practical rack mount nut screw set. Features -Color:Silver -Material: carbon steel, nickel -Size: 1.00X1.00X1.00cm/0.39X0.39X0.39in - Mounting your standard rack mountable equipment into a server rack or cabinet. - The screws thread is very , clean and accurate without burr. - Square : used for racks and cabinets with square holes, to install your standard rack-mounted equipment into server racks or cabinets. - Small and compact size, light in weight, you can carry and use it wherever . - workmanship, reasonable structure, professional and practical, can bring you convenience. Package list: 20 x M5x16mm screws 20 x M6x20mm screws 20 x M6x16mm screws 20 x M5 cage nuts M6 cage nuts