1) The SIT® drive (TX compatible) allows for optimum torque transmission, a tight and snug fit, and fast centering. The large flat washer head offers greater tightening force (even in warped boards) and increased pull through resistance than a countersunk or small hex head fixing.

2) The high efficiency thread with RUSPERT coating reduce the frictional resistance when screwing in and provides excellent corrosion protection.

3) The cutting points of the self drilling thread allows for an immediate screw start coating to reduce drive-in torque after the metal grip.

4) An aggressive drilling tip with wings cuts a clearance hole for decks with a steel under construction. It allows quick, easy and safe work without pre-drilling for steel thickness: 3.0 – 8.0 mm.

The screws with an additional RUSPERT® coating gives them a high corrosion and weather resistance, increased fracture torque, and makes them suitable for gardening, landscaping, and wood constructions.