Material: Self-drilling Screws are made of 410 stainless steel. The screws have a black oxide coating for higher density, better stability, durability, corrosion and wear resistance.
Advantages: Improved design of ordinary screws. It makes the material less prone to cracking during use and can be better fixed. Easy and fast installation. Save construction time. Can be screwed in without pre-drilling. It can be locked and secured to each other on the combined material by its own thread.
Application: Self-tapping screws can be widely used in wood, plastic, softer metals. Such as the connection of color steel plates and color steel plates, the connection of wall beams, etc.
Package includes: storage box packaging. A total of 380 self-drilling screws. Different models meet your different needs. Screws are sorted by size and stored in compartments of the box. There are explanatory diagrams. Easy to identify and store.