Size description: M5x8: thread diameter (D) 5mm, thread length (L) 8mm, thread length 8mm Learn more about the size corresponding to this item. For each specification, you can check our size chart. Material: screws Fins made of 304 stainless steel, while the button is made of plastic. It is rust-proof and weather-resistant. corrosion, durable and difficult to wear. break, which extends the life of the product. Design: The thumbscrew is a T-shaped design with a comfortable grip. The fully threaded design is easy to use install, disassemble and adjust. Installation: it can be installed or withdrawn freely without any other tools, that is, simply install or remove it by turning the screw directly. Wide range of applications: mechanical equipment, ;electronic equipment, towers, hardware, communication equipment, furniture decoration, construction and other related industries.