The forgefast countersunk torx compatible decking screws are suitable for fixing into softwood or hardwood they have a deep torx compatible insert that reduces cam out provides higher torque levels and a firmer drive its super sharp tip gives immediate bite from the very first turn and the recessed under head ribs provide superb countersinking a patented self drilling thread removes the need to pre drill the timber and reduces the probability of splitting even when screwing close to the edge p