Product Details

This product is a dedicated accessory for steel structure main frames, a perfect partner for high-strength bolts. Specifically designed for steel structure joint connections, its unique ingot-shaped design perfectly conforms to the surface of steel components, solving the problem of small bearing area common with ordinary flat washers. The steel columns and beams of the steel structure main frame are made of thick steel plates. When tightening 10.9S high-strength bolts, the pressure on the bolt head is concentrated on a small area of ​​the steel plate, easily leading to plate denting and bolt loosening. The ingot-shaped washer distributes the pressure over a larger area, protecting the steel components and improving the connection’s strength. Furthermore, the ingot-shaped washer effectively prevents bolts from loosening during vibration. It is an essential component for core load-bearing parts such as steel structure main frames and bridge joints; without this accessory, there is a high risk of joint loosening and safety hazards.

Core Technical Parameters

Material: Carbon steel Q235
Surface Treatment: Hot-dip galvanized
Specifications: M16, M20, M22, M24 (compatible with corresponding 10.9S bolts)
Compatible Standard: National Standard GB1228-1231

Core Application Scenarios

Steel structure main frame steel column and steel beam node connections; core load-bearing nodes of bridge steel structures; irregular node connections of large stadium steel structures.
Recommended Matching: Best used with 10.9S large hex bolts + grade 10 nuts + grade 8 flat washers as a set.