410 Stainless Steel Countersunk Head Self-Drilling Screws 

Stainless steel self-drilling screws made of stainless steel material, Self Drilling Countersunk Metal Screws are manufactured with a drill bit tip to eliminate the need to drill pilot holes. Often called "tek" points, the bit tips come in various sizes: #1, #2, #3, #4, and #5 point. The larger the tip size, the thicker the metal it can drill through before a pilot hole is needed. Flat head style or "countersink" leaves a clean profile on whatever material you're attaching them with.Countersunk Self Drilling Screws Countersunk Head Self-Drilling Screws 410 stainless steel countersunk head self-drilling screws are a type of fastener that is made from 410 stainless steel, which is a martensitic stainless steel alloy. These screws are specifically designed with a countersunk head, which means that the head is flat and tapered to allow it to sit flush with the surface it is being screwed into. The self-drilling feature of these screws means that they have a drill bit-…

Solar Energy Screw Pan Head Screws Hexagon Flange Head Drilling Screw With Tapping Screw Thread Thread Rods Screw Type Expansion Anchor Bolts