Products Description
The Enlarged Hexagon Head Flange Bolt features an integrated forged structure that combines a hexagonal head with an enlarged flange bearing surface, eliminating the need for a separate flat washer during assembly. We offer a variety of surface treatment options, and these bolts are widely used in automotive assembly, mechanical equipment, new energy mounting brackets, outdoor engineering, food processing machinery, and humid, corrosive working environments. They are particularly suitable for applications requiring stable clamping, surface protection, and long-term rust prevention.
Parameter
| Parameter Item | Specification Details |
|---|---|
| Executive Standard | GB5789 |
| Official Name | Enlarged hexagon head flange bolt |
| Core Material | 304 Stainless Steel |
| Strength Grade | Grade 4.8 |
| Nominal Diameter Range | M6 – M30 |
| Surface Treatment | ZP, YZ, BLACK |
Product Advantages
Even Force Distribution
Enlarged contact surface of Enlarged Hexagon Head Flange Bolt disperses pressure evenly, preventing base material depression and improving overall load-bearing stability.
Integrated Structure
Combined hex head and flange replaces independent washers, streamlining installation procedures and preventing gasket loss during high-vibration operation.
Resistance to Vibration-Induced Loosening
Large flange friction boosts locking force, letting Enlarged Hexagon Head Flange Bolt stay fastened tightly under continuous mechanical vibration and dynamic load.
Various Surface Treatments
Multiple surface treatments deliver rust resistance for indoor and outdoor use; large contact area protects thin plates, aluminum and soft workpieces from extrusion damage.
Shipping Packaging
Applications
Automotive Industry
Enlarged Hexagon Head Flange Bolt delivers reliable anti-loose assembly for automobile interior trim, auxiliary brackets and lightweight motorcycle frame components against driving vibration.
01
New Energy Equipment
Enlarged Hexagon Head Flange Bolt provides corrosion-resistant securing for photovoltaic support frames, energy storage cabinet bases and outdoor power equipment exposed to harsh outdoor weather.
02
Food & Sanitary Machinery
Enlarged Hexagon Head Flange Bolt achieves hygienic rust-proof connection for beverage production lines, food processing machinery and kitchen mechanical equipment meeting sanitary standards.
03
Construction & Outdoor Engineering
Enlarged Hexagon Head Flange Bolt firmly locks outdoor guardrails, pipeline support hangers, curtain wall auxiliary brackets and outdoor billboards for long-term outdoor structural fixing.
04
General Industrial Machinery
Enlarged Hexagon Head Flange Bolt ensures steady clamping for pumps, motor bases, conveyor fixtures and multi-layer plates of packaging equipment under continuous mechanical operation.
05
FAQ
01.What makes Enlarged Hexagon Head Flange Bolt different from ordinary flange bolts?
02.What surface treatments are available for this bolt?
03.Is it resistant to loosening under continuous vibration?
04.Do you support customized sizes and strength grades?
05.Can this bolt be reused after disassembly?
Within rated load range and without thread damage, the Enlarged Hexagon Head Flange Bolt can be repeatedly disassembled and assembled normally.
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