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White flange Bolt
Product Details Product Name: Flange Bolt/Flange Screw Product Overview Flange bolts (flange bolts) are special fasteners with flange plates (integrated gaskets), mainly used in connection scenarios that require high preload, anti-loosening and sealing performance. Its flange design can in...
Description
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Product Details
Product Name: Flange Bolt/Flange Screw
Product Overview
Flange bolts (flange bolts) are special fasteners with flange plates (integrated gaskets), mainly used in connection scenarios that require high preload, anti-loosening and sealing performance. Its flange design can increase the contact area, reduce the pressure on the connection surface, prevent loosening, and improve the seismic performance. It is widely used in fields such as pipe flanges, steel structures, mechanical equipment, ships, and fire protection facilities.
Product Features
1. Integrated flange design:
The flange plate and the bolt head are integrally formed, eliminating the need for additional washers and providing a more stable connection and anti-loosening effect.
The flange surface usually features anti-slip knurling or serrations to enhance friction and prevent loosening.
2. High-strength material:
Carbon steel (Q235, 45# steel, SCM435), 8.8 grade, 10.9 grade, 12.9 grade high-strength bolts, suitable for heavy-duty structures.
Stainless steel (304, 316), corrosion-resistant, suitable for industries such as chemical engineering, shipping, and food.
3. Surface treatment:
Galvanizing (white zinc, color zinc), Dacromet (corrosion-resistant), blackening (rust-proof), phosphating (wear-resistant).
Hot-dip galvanizing (heavy-duty anti-corrosion, suitable for outdoor environments).
4. Standards and Specifications:
- Standards: DIN 6921 (German standard), GB/T 5789 (Chinese standard), ANSI B18.2.1 (American standard).
- Diameter: M4 to M36 (commonly used are M6, M8, M10, M12, M16, and M20).
- Length: 10mm to 300mm (customizable longer).
5. Application Scenarios:
- Pipe flange connections (fire hydrants, ship pipelines, petrochemicals).
Steel structure buildings (Bridges, factories, curtain walls).
- Mechanical equipment (automobiles, wind power, heavy machinery).
Advantages and precautions
Advantages:
- Anti-loosening and anti-shock: The flange provides a larger contact surface, reducing the risk of loosening
- Good sealing performance: Suitable for connections that require leakage prevention (such as pipe flanges).
- High load-bearing capacity: 10.9 grade and 12.9 grade bolts are suitable for heavy-duty structures.
Precautions:
When installing, a torque wrench should be used to avoid failure caused by being too tight or too loose.
Stainless steel flange bolts may undergo stress corrosion in high-chlorine environments (such as seawater). It is recommended to use 316 material.
Technical Parameters
| Product Name: | Flange Bolt |
| Diameter: | M6-M64 |
| Length: | 6mm-300mm |
| Colour: | blue white |
| Material: | Carbon steel |
| Surface treatment: | Galvanizing |
| The above are the inventory sizes. If you need non-standard customization (special dimensions, materials or surface treatments), please contact us and we will provide you with a personalized solution. | |
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