Techfast Timber To Steel Csk Wing Screw No.5 Tip 5.5 X 120Mm Box 50

Forgefix TechFast Timber to Steel CSK/Wing Screws are used to join timber to steel frame buildings. The screws are 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. The thread will then engage with metal. They have a TORX compatible insert for a higher transmission of power. With improved countersinking from recessed ribs. Fire and corrosion resistant. Complies with EU Safety, Health and Environmental requirements. These Forgefix TechFast Timber to Steel CSK/Wing Screws have the following specification: Size: 5.5 x 120mmClamping Thickness: 91mmEffective Thread Length: 92mmPack Size: 50Drill Tip: No.5 No.5 drill tip for self-drilling heavy gauge steel up to 12.5mm | Forgefix Techfast Timber To Steel Csk/Wing Screw No.5 Tip 5.5 X 120Mm Box 50 in Silver