100 x Roofing & Cladding Screws 5.5 x 51mm Self Drill
Roofing & Cladding Self Drilling Screws
Pack of 100
Premium self drilling roofing and cladding screws.
Size: 5.5 x 51mm.
Washered self-driller with hex head for a 8mm socket.
For fixing cladding and sheet steel to steel purlins.
Zinc plated Elementech coating for superior anti-corrosion - salt spray tested to 1000 hours.
The 16mm rubber washer beneath the aluminium flange expands under pressure and forms a permanent weather-seal.
Designed for fixing cladding and sheet metal to light and heavy structural purlins as used when constructing industrial units.