GB 15856.4 Zinc Plated Carbon Steel Hex Head Self-Tapping Screws with EPDM Washers are high-performance industrial fasteners engineered for heavy-duty metal joining, roofing, and cladding applications. Manufactured from premium carbon steel and protected by electro-zinc or hot-dip galvanizing, they deliver outstanding mechanical strength, rapid installation, and long-lasting corrosion resistance. The integrated EPDM bonded washer forms a tight, weatherproof compression seal
GB 15856.4 Zinc Plated Carbon Steel Hex Head Self-Tapping Screws with EPDM Washers are high-performance industrial fasteners engineered for heavy-duty metal joining, roofing, and cladding applications. Manufactured from premium carbon steel and protected by electro-zinc or hot-dip galvanizing, they deliver outstanding mechanical strength, rapid installation, and long-lasting corrosion resistance. The integrated EPDM bonded washer forms a tight, weatherproof compression seal