4.8 mm x 35 mm Roofing Screws, Hex Head Self-Drilling Multi-Color (RAL 9007 Grey Aluminium) Roof Screws with EPDM Sealed Washer, Rust Proof Zinc Plated Hardened Coarse Thread Outdoor Screw (50 pcs)

COLORED HEX HEAD ROOF SCREW: Screw for lightweight housing systems is made of carbon steel and has the highest quality UV-resistant lacquer coating that provides a durable color matching the roofing material. EPDM WASHER: The EPDM: washer ensures protection against moisture and its passage to the self-drilling or construction (cannot be over-tightened or under-tightened). Reduces thermal motion effects. COROSION RESISTANT: Suitable for outdoor use zinc plated steel 12um supports LST EN ISO 12944-2:2000 high corrosion protection standard. RAL Powder coated Hex Head 60-80um collor matcing and resistan to damage during instalation. INSTALATION: SW 8 hex nut driver needed, no predrill neded, self-drilling, fast instalation, self-tapping tip drills through the steel les than in 2s. COMPATIBILITY: Commonly used for thin roof and segments instalation to the wood frame (both hardwood and softwood).