• Professional, elite performance multi-purpose woodscrews. • Ideal for fixing into most wood applications. • Elementech 400 surface coating provides corrosion resistance. • Salt spray tested to 400 hours. • A Non-Cr, Cr3+, yellow/zinc plated surface is environmentally friendly. • A deep torx compatible head ensures reduced cam-out, higher torque levels and a firmer drive. • Patented self-drilling thread - no pilot hole needed. • Torx compatible insert for a higher transmission of power. • Patented drill/drive shank for faster drive, reduced splitting and 'jacking' of the timber, increased pull-out and firmer fix. • A sharp point for faster bite, capable of penetrating 0.8mm steel. • Unique self drilling shank drives into most substrates -including hardwood - with ease. • Hardened case and core give exceptional strength. • Improved countersinking from recessed ribs. • Impressive pull out value and less risk of working loose when used in substrates that flex in use. • Flexes to 35º reducing likelihood of screw shearing when used in substrates that flex in use. • CE approved for use in load-bearing timber construction. • Free torx bit with every box.