Description
MATERIAL: This roofing fasteners made of high-quality Carbon Steel，which has higher corrosion resistance and anti-rust effect than ordinary screws, longer service life, not easy to damage, more solid..APPLICATION: #15 Extra Heavy Duty Roofing Fasteners are designed to secure insulation to 16-22 gauge steel and wood decks. The fastener must acheive a penetration depth of 3/4" minimum. The fastener is also available pre-assembled with 3" Galvanized Steel Insulation Plates. Pre-assembled insulation fasteners and plates are fast to install and increase productivity in the mechanical attachment of roof insulation boards..FINE WORKMANSHIP:#3 Phillips truss head roofing screws have heavier shank and thread diameters.Buttress thread design provides high pullout resistance.Sharp drill point for quick installation..CORROSION RESISTANCE:Our roofing fasteners,1800 hrs salt spray NSS resistance tested by SGS,appearance rating above 10(ASTMB117-18).15 cycle Kesternich test,no red rust(GB 9789).1500hr salt spray NSS resistance test,no red rust(GB/T 10125)..INTIMATE SERVICE:BUILCRA focus on customer satisfaction, if you have any questions or are not satisfied, you can contact us by email, we will solve all your problems as soon as possible.
