High-Strength HDG Structural Bridge Bolts (ASTM A325 / EN 14399)

HDG structural bridge bolts comply with ASTM A325 and EN14399 standards, not applicable to A490 due to hydrogen embrittlement risk. Equipped with heavy hex heads, matched overtapped nuts and hardened washers, passed ROCAP, tensile and coating thickness tests. Complete MTR traceability, thick zinc coating resists salt and de-icing salt. Packed in iron kegs for heavy infrastructure such as highway and railway bridges, alternative anti-corrosion coatings available for high-strength A490 projects.