High quality material: these high-quality self-tapping screws are made of high-quality manganese steel and feature a black surface, which is rust-proof and corrosion resistant even in humid environments, beautiful and practical, durable. Sharp Thread Design The threads of the screws are very sharp, not easy to deform or slip during the rolling process. After installation, it has a good fastening force, which ensures a secure hold. Compatible: sharp thread design ensures strong attachment to various materials such as wood and metal, body screws ideal for fixing mudguards, wheel covers, bumpers, grilles and other car parts. Easy to Install These sheet metal screws can be screwed directly into wood or thin iron materials. Torx self-tapping screws have high strength, do not deform and are not easy to break, making installation easy. MULTIPURPOSE The pack contains a total of 80 pieces screws black, for replacing old or damaged screws. With a good clamping force, these flat head screws can be used for computers, electrical appliances, furniture, toys or other repairs that require screws. Product Name: Self Tapping Screws Colour: black. Quantity: 80. Material: manganese steel. Size: M5 x 16 mm..Items from YU wen's store