Flange Bolt
Automotive parts Motorcycles Machinery and equipment Furniture Electrical equipment Industrial assembly

Flange Bolt
Product Introduction
A flange bolt is a bolt with an integrated flange structure. The flange can replace traditional washers, increasing the contact area between the bolt head and the connected parts, making the force distribution more uniform and improving connection stability.
WT Fasteners specializes in producing various specifications of flange bolts, including hex flange bolts, serrated flange bolts, high-strength flange bolts, and custom non-standard flange bolts. We can provide different materials, strength grades, and surface treatment options according to customer requirements.
Flange bolts are widely used in automotive manufacturing, machinery and equipment, steel structures, power equipment, engineering machinery, and industrial assembly.
Product Features
1. Integrated Flange Design
The bolt head features a flange that increases the bearing area, reduces surface pressure on connected parts, and enhances fastening effectiveness.
2. Excellent Anti-Loosening Performance
The serrated flange structure increases friction, improving vibration resistance and making it suitable for vibrating environments.
3. High Installation Efficiency
No need for separate washers, reducing the number of parts and improving assembly efficiency.
4. High-Strength Manufacturing
Made from high-quality carbon steel, alloy steel, and stainless steel, offering good tensile strength and fatigue resistance.
5. Custom Non-Standard Options
Custom sizes, head structures, thread specifications, and surface treatments can be provided based on customer drawings or samples.
Product Parameters
Product Name:
Flange Bolt
English Name:
Flange Bolt / Flanged Hex Bolt
Common Standards:
- DIN 6921
- ISO 4162
- GB/T 5789
Materials:
- Carbon Steel
- Alloy Steel
- Stainless Steel 304
- Stainless Steel 316
Strength Grades:
- Grade 8.8
- Grade 10.9
- Grade 12.9
Size Range:
M5-M24
(Custom non-standard sizes available)
Length:
10mm-200mm
Thread Types:
- Metric Coarse
- Metric Fine
- Imperial Thread
Head Types:
- Hex Flange Head
- Serrated Flange Head
Surface Treatments:
- White Zinc
- Yellow Zinc
- Black Zinc
- Hot-Dip Galvanizing
- Dacromet
- Black Oxide
- Stainless Steel Natural Finish
Product Types
Hex Flange Bolt
The most common type, suitable for machinery and industrial assembly.
Serrated Flange Bolt
Features serrations on the flange underside to increase friction and provide better anti-loosening performance.
High-Strength Flange Bolt
Manufactured from high-grade materials, suitable for high-load connections.
Stainless Steel Flange Bolt
Excellent corrosion resistance, suitable for outdoor and special environments.
Custom Flange Bolt
Customized special specifications according to customer requirements.
Application Areas
Flange bolts are widely used in:
- Automotive manufacturing
- Motorcycle components
- Engineering machinery
- Machinery and equipment
- Steel structure engineering
- Power equipment
- Solar panel brackets
- Industrial production lines
- Assembly manufacturing
Packaging Methods
According to customer requirements, we provide:
- Plastic bag packaging
- Small box packaging
- Carton packaging
- Woven bag packaging
- Pallet packaging
- Customer brand packaging











































