Techfast TFCH55109 Roofing Screw - Timber To Steel - Heavy Section 5.5 X 109Mm (Bag Of 50)

Winged Roofing Screws. Timber To Steel. (For Heavy Section Purlins). Countersunk Head Screw. Timber To Steel Purlins. Head: Countersunk Torx Compatible Winged Self-Drilling Point. Finish: New 'Elementech' Coating For Superior Anti-Corrosion - Salt Spray Tested To 1000 Hours. Foc Torx Compatible Bit In Every Pack. Techfast Light Section Screw Will Fix Timber To Steel Thickness Between 6.0Mm To 12.5Mm. Self-Drilling Point Enables Improved And Speedy Insertion. Wings Create A Clearance Hole In The Timber Which Eliminates The Chance Of &Ldquo;Jacking&Rdquo; When Fixing. Designed Specifically For Fixing Timber Work To Steel Sections.PTDFORDIRTFCH55109