Self Tapping Screws 8*1/2

These screws have a sharp point to drill in wood and metal sheet, and coarse thread design to help grab into metal studs.
The Phillips drive has #2 x-shaped slot that accepts the Phillips driver and is designed to allow the driver to slip out of the head to help prevent over-tightening and damage to the thread or fastener.
These screws are organized by Size / Type in a Transparent Storage bag for Quick Access and Protection in an IMSCREWS plastic bag.
410 Stainless Steel has high strength and hardness ratings and resists corrosion in mild environments
Self-drilling screws provide secure fastening with strong holding power without the need to pre-drill.
It is wood drill tail screw, mainly used in steel structure caigang watt fixed can also be used for fixing the simple