Flange Bolts: Structural Features, Industrial Applications & Standard Installation Rules
Flange bolts are the core fasteners for high-pressure pipeline connections, thermal equipment and industrial flange sealing systems. Different from ordinary hex bolts, flange bolts integrate an enlarged bearing surface, which effectively disperses pressure, prevents surface damage and ensures long-term sealing stability.
Core Advantages Of Flange Bolts
- Integrated large bearing surface avoids metal surface pressure damage
- No need for additional washers during assembly, saving installation time
- Excellent vibration resistance for long-term dynamic working conditions
- Uniform pressure distribution ensures tight flange sealing effect
Flange Bolt VS Ordinary Hex Bolt Comparison
| Comparison Item | Standard Hex Bolt | Integrated Flange Bolt |
| Washer Requirement | Mandatory matching washers | No washers needed |
| Pressure Distribution | Point pressure concentration | Uniform surface pressure |
| Vibration Resistance | Medium stability | High structural stability |
| Main Usage | General structural assembly | Pipeline & high-pressure flange joints |
Professional installation requires diagonal cross tightening sequence for flange bolts, which ensures even gasket compression and completely avoids medium leakage in high-pressure industrial pipeline systems.