As a core fastener in the industrial sector, hexagonal flange bolts, with their integrated "bolt + flange" design, achieve a perfect balance between connection strength and anti-loosening reliability. Developed specifically for complex operating conditions such as vibration, shock, and high pressure, the Hexagon Flange Headed Bolt Fastener is widely used in automotive chassis, construction machinery, wind power equipment, rail transit, and other fields. By tightly fitting the flange surface with the connecting component, it simultaneously achieves the triple functions of "high-strength fixing, anti-loosening sealing, and simplified assembly," replacing the traditional "bolt + washer" combination and significantly improving the stability and cost-effectiveness of the connection system.

Integrated flange surface design

The Hexagon Flange Head Bolt surface design effectively expands the load-bearing area, preventing damage or cracking on the workpiece, making it particularly suitable for connecting high-load or soft materials.

It improves locking stability and effectively distributes the preload force, preventing loosening or breakage caused by uneven load.

Eliminating washers simplifies the installation process

It eliminates the need for additional fastener procurement and assembly steps, improving assembly efficiency.

Stainless Steel Screw is suitable for high-volume assembly on assembly lines, effectively saving labor and time.

Precision molding improves locking tightness

The high thread precision and full profile provide excellent mechanical bond strength when used with various Threaded Fasteners of Flanged Hexagon Head Bolt.

Adapt to automated tightening equipment to achieve consistent torque control and improve the assembly consistency of the entire machine.

Hexagon Head Screw with Washer

1: Available in Carbon Steel, Stainless Steel, and Alloy Steel for Hexagon Head Screw with Washer

Standard carbon steel (grade 8.8/10.9) is suitable for general industrial equipment connections.

304/316 stainless steel is suitable for humid, salt-spray, or corrosive environments.

Alloy steel is suitable for heavy-duty equipment and high-impact environments, ensuring stable connections.

2: Diverse Surface Treatments for Zinc-plated Hexagon Head Screws with Washers

A variety of surface treatments are available, including galvanizing, Dacromet, electrophoretic black, and hot-dip galvanizing, allowing customization to meet varying corrosion protection and appearance requirements.

The smooth, burr-free surface ensures no damage to mating surfaces during installation, effectively extending the life of both the bolt and the workpiece.

3: Strong Temperature and Pressure Resistance for Hexagon Bolts With Flange

Even under extreme operating conditions such as high temperature and high pressure, it maintains undiminished fastening force, eliminates cold flow and creep risks, and ensures long-term stable operation.

Strict Selection of Steel Wire for Hexagon Flange Headed Bolt Fastener

Automotive and New Energy Industries	Applied to engine mounts, battery module frames, and chassis fastening components, they meet vehicle lightweighting, high strength, and high corrosion resistance standards. The anti-loosening properties of the Head Bolts with Washers face are suitable for environments with frequent vibration, ensuring vehicle safety.
Industrial Equipment and Machinery Manufacturing	Widely used in wind power equipment, machine tool structures, and electrical control cabinet assembly, providing stable structural support. Quick installation improves overall machine assembly efficiency.
Building Steel Structures and Rail Transit	Provides reliable connections in critical structural locations such as steel trusses, rebar connections, and rail foundation assembly. Specialized Flanged Screw with Hexagonal Head types can withstand high loads and meet long-term operation requirements.
Power, Communications, and Energy Industries	Applied to high and low voltage electrical cabinets, box-type transformers, and solar photovoltaic mounting systems, offering outstanding corrosion resistance and anti-loosening properties. The Flanged Hex Head Bolt structure improves the contact efficiency of the conductive surface and optimizes the grounding design.