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
DEKS neo washer
•    100% EPDM
•    Low carbon content
•    Non-conductive
Type 17 drill point
•    Type 17 parallel shank thread for constant clamp load.
•    Special end slot for a thread cutting action into the timber.