Bi-Metal Concrete Screws

《Feature & Benefits》

Save up to 44% of your time! 

Anti-corrosion up to 50 years!

Our high quality bi-metal self-tapping screws sharp point have a carbon drill point welded onto A2/A4 stainless steel shank. The design speeds up installation time, enable thread cutting, and avoid corrosion. The type A thread is designed for metal application and hi-lo thread is for concrete application. 

Super Fast:Screw driver speed: Maximum 1800 R.P.M (traditional one is 800 R.P.M)
Great Safety:Efficient thread cutting maximizes the performance of pulling out and prevents failure of wind pressure.
Anti-Corrosion:A2/A4 stainless steel shank and alloy steel tip with protective coating for excellent corrosion resistance.