Timber to Steel Roofing Screws 4.8 x 38mm Box 200

Forgefix TechFast Timber to Steel CSK/Wing Screws are designed to join timber to steel frame buildings. They feature breakaway wings that create a clearance hole during drilling to prevent the thread from engaging timber, protecting it from damage. Once the wings contact the metal surface, they break off, allowing the screw to engage securely with the steel. Equipped with a TORX compatible insert for higher torque transmission and improved countersinking with recessed ribs, these screws are fire and corrosion resistant and protected by a durable coating that withstands salt spray testing. Specifications include size 4.8 x 38 mm, clamping thickness up to 21 mm, effective thread length of 21 mm, pack size 200 screws, and drill tip No.3, suitable for self-drilling light gauge steel up to 5 mm. They are compatible with steel and timber materials and are designed for use in timber-to-steel frame construction.

Features

• Breakaway wings create a protected clearance hole
• Wings ream a hole and break off on metal
• TORX compatible insert for higher torque transmission
• Improved countersinking with recessed ribs
• Fire and corrosion resistant with salt spray coating
• Suitable for self-drilling light gauge steel up to 5 mm

Technical specifications

• Size: 4.8 x 38 mm
• Clamping thickness: up to 21 mm
• Effective thread length: 21 mm
• Pack size: 200 screws
• Drill tip: No.3
• Compatibility: steel and timber materials

Complies with EU Safety, Health and Environmental requirements.