SPAX washer head construction screws are the ultimate screws for a range of uses, whilst always giving a professional invisible finish. Only Spax Screws have patented features including a Spax Cut Head with ground Serrations and Countersink Ribs for ultimate driving power without splitting the wood. The washer head gives a clean, flush sinking of the screw head for the best possible visual and practical results. Wirox surface with high protection against corrosion, it is free from chromium-vi and therefore is more environmentally friendly that other surfaces. The washer head guarantees higher beam supporting forces and allows savings with regards to piece numbers and working time. The 4CUT point effectively reduces the splitting effect, the square end pushes aside the fibre of the wood and reduces the screwing-in torque. Application For use outside: carports, playground equipment, porches, bridges, bridge plank flooring, balconies Features & Benefits • Cutting ribs help the head countersink into materials easily • Ultimate holding power • Hard synthetic coating for easy driving • Deeper recess in screw-head for a stronger bit hold Specifications • Diameter: 8mm • Length: 80mm • Quantity: 50