Material: Screws are made of 410 stainless steel. The screws have a black oxide coating for higher density, better stability, durability, corrosion and wear resistance.
Cross groove design, easy and fast installation. It can speed up the fastening process of objects. Self-drilling screws have very sharp and strong threads and can be drilled directly into metal surfaces without pre-drilling.
Application: Self-tapping screws can be widely used in wood, plastic, metal.The metal screw kit can make the connection between metal and metal, wood and metal, and metal and wood firm.
Package includes: storage box packaging. Screws are sorted by size and stored in compartments of the box. There are explanatory drawings. Easy to identify and store.