10.9S large hexagonal steel structural bolts

Steel structure large hexagonal head bolts

10.9S Large hexagonal steel structure bolts are the core high-strength fasteners in the field of steel structures. They are often used in the form of a "bolt + nut + two washers" connection pair. They have high tensile and shear resistance and are suitable for various heavy-duty steel structure connection scenarios

Executive standards: GB/T1231-2024, ISO 7412:1984

Material: Alloy steel

Performance level: 8.8, 10.9

Surface treatment: black, phosphated

Specifications: M12 to M36,

Main uses

This bolt is mainly used for heavy-duty, stable steel structure connections, and is a key fastener in the industrial and construction fields. Specifically Scenarios include: steel structure frames of factories in industrial and civil buildings, beam-column node connections in high-rise steel structure office buildings; splicing of steel trusses and deck steel structures of highway and railway bridges; segmented fixation of tower structures such as communication towers and transmission towers; and connection of steel structure components of hoisting machinery and port equipment, as well as pipe supports, large equipment bases and other steel structure parts that need to withstand heavy loads and vibrations for a long time.