Self drill through coated steel roofing and cladding sheet direct to timber. Each tek screw is complete with 16mm galvanised bonded washer. Will self drill through thin gauge metal. Sharp gash point for fast installation.

Specification:

• 6.3 x 40mm
• Qty: 100
• 16mm Galvanised Bonded Washer
• 8mm Hex Head
• Cladding to Wood
• No Pre Drilling Required