High Tensile Steel Bolts for Steel Structure Connections
High strength structural heavy hex bolts, Grade 10.9, widely used for steel building, bridge, workshop steel frame connections. Factory supply with full test certificates.
Structural heavy hex bolts are commonly supplied as bolt, nut and washer sets. There are two installation types: friction-type and pressure-type. Friction-type structural bolts rely on friction between steel plate surfaces to transfer force, which is the most popular choice for steel buildings, industrial workshops, steel bridges, stadium steel frames and warehouse constructions. Strict torque control is required during installation to achieve the designed pre-tightening force.
Our structural heavy hex bolts follow GB/T 1228, ASTM A325, ASTM A490 standards. Surface treatments include black oxide, hot-dip galvanizing and phosphating. Hot-dip galvanized options provide superior anti-corrosion performance for outdoor, coastal and humid environments, effectively preventing rust and extending service life of steel structures.
Post time: 2026-09-11 17:53:41
