Explore Wotu’s range of self-drilling screws, self-tapping screws, bolts, nuts, U-bolts, anchor bolts and washers for construction, steel structure, roofing and industrial fastening applications.
Our products are available in multiple sizes, standards, head types and surface finishes. We also support bulk orders, customized non-standard fasteners, neutral export packaging and private-label requirements.
Brand: Hengzuan Surface: high temperature black phosphated anti-rust treatment, blue zinc, color zinc plated coating can be replaced as needed Specifications: in stock ST3.5/ST4.2/ST4.8 common specifications, rod length 16mm~50mm, complete, supports nonstandard size customization, suitable for drilling steel sheets 2~5mm Packaging: 25kg cartons, whole wooden pallets, support neutral packaging, private-label customization
Brand: Hengzuan Surface: screw color zinc plated + hex head outdoor paint Specifications: ST5.5, ST6.3, rod length 25mm～120mm in stock, supports nonstandard customization, suitable for drilling steel sheets 2～5mm Packaging: 25kg cartons, whole wooden pallets
Brand: Hengzuan Surface: blue and white zinc plated Specifications: in stock ST4.2/ST4.8full range of specifications, length 13~50mm in stock, support nonstandard length customization Packaging: 25kg cartons, solid wood packaging, support neutral packaging, private-label customization
Brand: Hengzuan Surface: color zinc plated, can be customizedblue-white zinc plated Specifications: in stock 4.8/5.5 common wire diameter, rod length 16~125mm full range of specifications, supports nonstandard customized Packaging: 25kg cartons, whole wooden pallets, support neutral packaging, private-label customization
Brand: Hengzuan Surface: screw color zinc plated, head color nylon protective cap, multiple colors available Specifications: Chinese national standard ST5.5, ST6.3 mainstream caliber, rod length 25mm~125mm full range of specifications in stock, supports nonstandard length customization, suitable for drilling steel sheet thickness 2~6mm Packaging: 25kg cartons, full pallets packed on wooden pallets, support neutral packaging, private-label customization
Brand: Hengzuan Surface: blue and white zinc plated, optional black oxide, color zinc plated coating Specifications: in stock 4.2/4.8/5.5/6.3mm wire diameter, length 16mm~165mm full size range, supports nonstandard customized rod length Packaging: 25kg export cartons, full-container wooden pallets wrapped with film, supports neutral packaging, private-label customization
