If you are looking for a professional and server rack nut screw set, then your research is over here. That's because our product can meet your need. Adopted of , it is practical and durable for long time use. It is not easy to get deformed and bring you much convenience. Features -Color: Silver -Material: carbon steel, nickel -Size: 1.00X1.00X1.00cm/0.39X0.39X0.39in - This set comes with sufficient quantity can fully meet your various needs. - It is made of premium carbon steel to ensure its strength, wear resistance and resistance against corrosion in harsh environments such as high temperature, cold weather or high humidity areas. - The size of the cage nut screw set conforms to the standard metric system, making your installation more convenient and efficient. - This cage screw set is universally compatible with all square-hole server racks. - Special design and it is in fine craftsmanship. It is the best replacement for your old, broken one. Package list: 20 x M5x16mm screws 20 x M5x20mm screws 20 x M6x20mm screws 20 x M6x16mm screws M5 cage nuts M6 cage nuts