840pcs Self-Tapping Screws for Metal, 410 Stainless Steel Screw Assortment Kit, Hex Head Washer Quick Tape Self-Drilling Screws with Rubber Washer (420 Sets) K-189

Material: Self-drilling screws for metal are made of 410 stainless steel. These self-drilling screws have a higher density, better stability, greater durability, corrosion resistance, and wear resistance than ordinary screws.

Advantages: Improved design compared to ordinary screws. They make the material less prone to cracking during use and provide a more secure fastening. Quick and easy installation. Saves construction time. Can be screwed in without pre-drilling. They can be interlocked and fastened together on the material.

The deep thread design of the self-tapping screws with hexagonal washer heads makes the screws have good holding power and are strong and robust. Achieving the connection fastening effect.

Application: Self-tapping screws can easily penetrate wood, plastic, and softer metals. Such as connecting color steel plate to color steel plate, connecting wall beams, etc. It can be widely used in the machinery industry, household appliances, furniture repair, ceiling frame installation, and DIY engineering fastenings.

Package includes: 420PCS sheet metal screws. 420PCS rubber washers. The self-supporting screws are packaged in a portable carrying case. Easy to store and transport. The case can be reused.