Techfast Tfcuwwsd55150h Roofing Screw - Timber To Steel - Heavy Duty 5.5 X 150Mm (Box Of 50)

TechFast

Used for joining Timber to steel frame buildings No.5 drill tip for self-drilling light 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 Torx compatible insert for a higher transmission of power, Weight: 2.3368999772 pounds, Manufacturer: ForgeFix