• Professional, high performance construction screws. • Deep torx compatible insert ensures reduced cam out, higher torque levels and firmer drive. • Super sharp tip gives imediate bite from the first turn. • Patented self-drilling thread removes the need to pre-drill timber and reduces probability of splitting. • Hardened case and core give exceptional strength. • Protected by Elementech 2000 surface treatment. • Corrosion resistance up to 30 times longer than some standard zinc plated screws. • Impressive pull out value, less risk of working loose when used in subtrates that flex in use. • Flexes to 35º reducing likelihood of screw shearing. • CE approved for use in load-bearing timber construction.