Usage Tips:M6 rack screws set: the package comes with 30 pieces M6 rack screws sets, each set contains M6 x 20 mm rack mount cage screws with cage nut and washer, for your equipment server racks, enclosures, and cabinets 20 mm Rack screws: the length of M6 rack screws is 20 mm, proper size makes it easy to be better fixed; to use: The rack screws are made of Iron, which is and glossy, the gasket is made of PVC material, which has a non-slip effect. The whole kit can better your rack mount server cabinets. Quality rack screws set: The rack screws set has clear edges and corners, smooth and no burr, the thread spacing of the product is uniform, the grain is clear, the strength is high and more firm, and the tail-end exquisite design is easy to operate and has good texture, easy to enhance work efficiency and bring you a nice use experience. Rack mount cage screws size: M6 x 20 mm Note: Please allow slight color difference due to different monitor. Small products, please keep away from children to prevent swallowing. Material:iron colour:Silver Package Contents: 50 x Screws 50 x Cage nuts Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.