This product is a self tapping screw. It is made of solid materials. It is safe and . It can serve you for a long time without being easily damaged. It is an excellent wall plate screw that can bring you more convenience, allowing you to have comfortable experience. Features -Color:Silver -Material:Stainless steel -Size:3.50X0.70X0.70cm/1.38X0.28X0.28in Thread diameter: 6mm Thread length: 16mm/20mm/25mm/30mm - Easy to use: you only need to measure the length you need, then choose the appropriate screw and spacer shorter than the screw, the installation process is safe, fast and convenient. - Keep the plate flush with the wall, save your time and energy. - Sufficient quantity and good combination to meet your different needs and replacement, easy to install and fix. - Siding screws: Comes in 4 different lengths, suitable for most size grooves; spout screws can be easily getting through the spout tool, can also be easily adjusted to your needs. - The outlet extension kit works on granite, wood, marble, tile, backsplashes and even drywall. Package list: 10 x M6x16 screws 10 x M6x20 screws 10 x M6x25 screws 10 x M6x30 screws