Techfast Self Drill Screws

TechFast Timber to Steel. Used for joining Timber to steel frame buildings -No.3 drill tip for self-drilling heavy gauge steel up to 5mm -Screw fitted with breakaway wings that create a clearance hole to protect thread from engaging timber when drilling through -Breakaway wings will ream a hole then break-off when they contact the metal surface to be drilled. Thread will then engage with metal -Torx compatible insert for a higher transmission of power -Improved countersinking from recessed ribs LEAD TIME 2-3 DAYS