Product introduce: 19PCS M.2 SSD Mounting Screws Kit; This pc screws kit can effectively help you repair your computer motherboard. Product material: These m.2 screws are made of carbon steel, the surface of the ssd screws is nickel and zinc plated, which have rust resistance and oxidation resistance, long service life. Product features: This m.2 screw kit is equipped with a magnetic screwdriver, for easy installation. There are two different sizes of hex head jackscrews, which can be selected according to your needs. Product application: This m.2 screws kit is suitable for M.2 SSD installation of computer motherboard, for universal laptop notebook, personal computer, computer mainboard, etc. Product include: 3 x M2 Hex Head Jackscrews + 3 x M2 Flat Head Screws+ 3 x M2 Washers + 3 x M3 Hex Head Jackscrews + 3 x M3 Flat Head Screws + 3 x M3 Washers + 1 x Screwdriver