High Quality 410 Stainless Steel, Stainless Steel with Superior Rust Resistant Ensure, More Solid and not Easy to Break;
It is wood drill tail screw, mainly used in steel structure caigang watt fixed can also be used for fixing the simple construction of the sheet material;
How to use? Self-Drilling Screws, eliminate the need for a pre-drilled hole. The length of the drill point determines the material thickness which the screw can reliably penetrate. When selecting a self-drilling screw design, it is important to consider the material thickness and type of materials to be joined. These stainless are great to use in environments that are damp;
Modified Truss head is extra wide with a low-profile dome and integral round washer, Phillips driver designed to prevent over-tightening.
Item: flat/washer head self-drilling screw
Quantity: 182pcs(4.2*13mm 30pcs; 4.2*16mm 30pcs; 4.2*19mm 30pcs; 4.2*25mm 30pcs; 4.2*32mm 30pcs; 4.2*38mm 30pcs; screwdriver bit 2pcs)
