TechFast Heavy Duty Sheet to Steel Roofing Screws 5.5 x 38mm Elementech Bag 100

These heavy-duty TFHH5538 TechFast Hex Head Roofing Screws are designed for fixing cladding and sheet steel to heavy section steel purlins. They feature a self-drilling tip suitable for steel thicknesses from 6.0 mm to 12.5 mm, enabling straightforward installation without pre-drilling. The screws are finished with Elementech coating to enhance corrosion resistance and are paired with a 16 mm EPDM rubber washer to form a weather-tight seal when compressed. The non-slip flanged hex head provides secure torque transfer during installation, reducing the risk of slippage. Ideal for anchoring corrugated steel cladding, profiled roofing sheets, and industrial metal panels to structural steel frames, these screws are engineered for durability in demanding outdoor conditions.

Key features

• Self-drilling tip for heavy-gauge steel
• Elementech anti-corrosion coating
• 16 mm EPDM washer creates weather seal
• Non-slip flanged hex head for tool grip
• For fixing cladding to steel purlins 6.0–12.5 mm