New Products

Hot-Dip Galvanized Steel Structure Bolts

Hot-dip galvanized steel structure bolts are indispensable anti-corrosion fasteners in outdoor steel structure buildings, transmission towers, communication towers, railway catenary supports, and photovoltaic brackets. Compared with ordinary steel structure bolts, hot-dip galvanized steel structure bolts significantly improve weather resistance while retaining high preload and anti-slip performance. These hot-dip galvanized steel structure bolts are typically used with large hexagonal nuts and washers to form connection pairs, installed using the torque method or angle method, suitable for friction or bearing connections. In uncoated weather-resistant steel structures, hot-dip galvanized steel structure bolts can also serve as a supplementary anti-corrosion measure for bolted connections.

Product Description

Hot-dip galvanized steel structure bolts are indispensable anti-corrosion fasteners in outdoor steel structure buildings, transmission towers, communication towers, railway catenary supports, and photovoltaic brackets. Compared with ordinary steel structure bolts, hot-dip galvanized steel structure bolts significantly improve weather resistance while retaining high preload and anti-slip performance. These hot-dip galvanized steel structure bolts are typically used with large hexagonal nuts and washers to form connection pairs, installed using the torque method or angle method, suitable for friction or bearing connections. In uncoated weather-resistant steel structures, hot-dip galvanized steel structure bolts can also serve as a supplementary anti-corrosion measure for bolted connections.

Product Feature

Long-life corrosion protection: The zinc coating thickness conforms to ISO 1461, typically ≥85μm, and with passivation treatment, the initial maintenance cycle can reach 15-25 years.

Retained anti-slip performance: The washer contact surface is also hot-dip galvanized and lubricated, mating with the friction surface of the sandblasted/shot-blasted steel plate. Hydrogen embrittlement resistance guarantee: For 8.8S and 10.9S grade steel structural bolts, pickling time is strictly limited, low-hydrogen process or mechanical rust removal is adopted, and hydrogen removal treatment is carried out within 4 hours after plating.