Quality Roofing Screws - Vortex B8 Coated Hex Flange Head Screw
Dual purpose roofing screw is for fixing roofing and cladding to steel purlins, timber or metal battens
 
Patented vortex tip - for timber or metal applications
Top grip thread - for firm holding power
B8 coating - Lasts up to 4x longer than galv
Drill up to 30% faster