TechFast Roofing Screw - Timber to Steel - Heavy Duty - Box (100) - 5.5 x 50mm

SKU: TFCUWWSD5550H
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£8.76
(£7.30 ex VAT)
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• 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.