Professional, high performance timber screws for fixing into softwood or hardwood.- Combination hexagonal head with deep Torx compatible insert ensures reduced cam-out.- Super sharp tip gives immediate bite from the first turn.- Patented self-drilling thread removes the need to-pre-drill timber and reduces the probability of splitting.- Hardened case and core give exceptional strength.- Protected by Elementech 2000 surface treatment.- Corrosion restistance up to twice as long as standard timber screws.- Impressive pull out value, less risk of working loose in substrates that flex in use.- Flexes to 35º reducing likelihood of screw shearing.- CE approved for use in load-bearing timber construction.