describe: 1. European standard 20 series M5T type nuts, they are widely used in many occasions, such as construction industry aluminum frame structures, 3D printers, CNC routers, CNC laser-cutting machines, robot projects, etc. 2. Nickel-plated carbon steel is and stamped, featuring high hardness and strong stamping resistance. Surface electroplating, effectively prevent corrosion and rust, improve service life 3. It can be used for sliding T-nuts and is suitable for 20 series aluminum profiles, such as CNC machine tools, industrial fences, production line consoles, shelves, etc. 4. European standard 20 () T-type nuts, the dimensions are as follows: length: 10.5mm, thickness: 4.4mm, width: 6mm, pitch: 5mm 5. Easy installation: just put the nut head into the groove along the direction of the profile groove, and rotate it 90 degrees clockwise, then it can be automatically locked during installation Specification: Name: European standard 20 series M5T nut Material: carbon steel with nickel plating Color: Silver Quantity: 200 Dimensions: Length: 10.5mm, Thickness: 4.4mm, Width: 6mm, Pitch: 5mm; Package Contents: 200 x European standard 20 series M5T nuts Only the above package content, other products are not included. Note: Light reflection 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.