Timber to Steel Heavy Duty

TechFast Timber to Steel. Used for joining Timber to steel frame buildings -No.5 drill tip for self-drilling heavy gauge steel up to 12.5mm -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 -Fire and corrosion resistant, protected by Elementech corrosion resistant coating, salt spray tested to 1000 hours -Complies with EU Safety, Health and Environmental requirements