TechFast Light Duty Timber to Steel Roofing Screws | 4.8 x 38mm | Elementech | Bag 100

Product description

• Used for joining Timber to steel frame buildings
• No.3 drill tip for self-drilling light 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
• Torx compatible insert for a higher transmission of power