Fanged Elevator Bolts for Bucket Elevators

Fanged elevator bolts are designed to securely fasten elevator buckets to conveyor belts. The fanged head structure prevents the bolt from rotating during installation, ensuring a stable and reliable connection even in high-load and high-vibration conveying systems.

Key Features

  • Fanged head design prevents bolt rotation during tightening
  • Provides secure fastening between bucket and conveyor belt
  • Suitable for grain, feed, and bulk material handling systems
  • Available in carbon steel, zinc plated, and stainless steel
  • Compatible with standard elevator bucket mounting systems
  • Supplied with nuts and washers for complete installation

Why Choose Fanged Elevator Bolts

Unlike standard bolts, fanged elevator bolts are specifically designed for conveyor systems. The sharp fangs under the head bite into the belt or bucket surface, locking the bolt in place and preventing loosening caused by vibration, impact, or continuous operation.

This makes them a reliable solution for long-term use in demanding environments such as grain processing, feed production, and industrial conveying systems.

Applications

Fanged elevator bolts are widely used in:

  • Grain elevators
  • Feed processing plants
  • Cement and bulk material handling systems
  • Agricultural conveying equipment
  • Industrial conveyor systems

Technical Drawing with Picture

fang bolt three fangs 2fang bolt drawing

Specification

Model d Diameter(mm)
D		 Length(mm)
L		 Package
(pcs per carton )
M6 X 25 M6 25 25 2000
M6 X 30 M6 25 30 2000
M6 X 38 M6 25 38 1500
M8 X 30 M8 27 30 1000
M8 X 35 M8 27 35 1000
M8 X 42 M8 27 42 1000
M8 X 45 M8 27 45 1000
M10 X 35 M10 30 35 600
M10 X 45 M10 30 45 600
M10 X 50 M10 30 50 600

Fang Elevator Bolt Accessories

hexagon nut

Hexagon Nut

nyloc nut
Nyloc nut

 

 

square nut
Square Nut
  • Strength: Level 5
  • Thread precision: 6H
  • Surface treatment: Passivation of Zinc Plating

spring washer

  • Material: 65Mn
  • Surface treatment: Oxidation treatment

large flat washer

  • Hardness: 100HV
  • Surface treatment: Galvanized

domed washer

  • Hardness: 100HV
  • Surface treatment: Galvanized

Fang Elevator Bolt Set Options:

  • Option F: Square nut
  • Option Y: Domed washer + Spring washer + Hexagon Nut
  • Option S: Larger flat washer + Spring washer + Nyloc nut
  • Option P: Larger flat washer + Spring washer + Hexagon nut
  • Option WS: Domed washer + Spring washer + Nyloc nut

Two fangs Elevator Bolt Type for your choice:

bucket fang bolt

Technical Advantages

  • High-precision 6g threads ensure smooth installation and secure fastening
  • Higher strength grade (above 4.8–5.6) provides reliable performance under load
  • Galvanized surface treatment enhances corrosion resistance and extends service life

Matching Components

We can supply a complete solution including:

  • Elevator buckets
  • Washers
  • Nuts
  • Conveyor components

👉 This ensures perfect matching and simplifies your procurement process.

 

👉 Need Help Choosing the Right Bolt?

Contact us for selection support or a complete bucket + bolt matching solution tailored to your system.

Fanged vs Ordinary Elevator Bolts (Bucket Elevator Fastening Comparison)

Choosing the right elevator bolt is critical for system stability and maintenance cost.

Feature Fanged Elevator Bolt Ordinary Elevator Bolt
Head Structure With sharp fangs under the head Smooth underside (no fangs)
Anti-Rotation Excellent – fangs bite into belt to prevent rotation Limited – may rotate during installation
Installation Easy, no need to hold bolt head Requires holding the head during tightening
Fixing Stability Strong locking effect, less loosening Relies on friction, may loosen over time
Vibration Resistance High, suitable for continuous operation Moderate, may loosen under vibration
Belt Grip Firm grip on belt surface Lower grip compared to fanged type
Installation Efficiency Faster and more convenient Slower installation process
Application Recommended for heavy-duty and high-load systems Suitable for light-duty or standard systems
Maintenance Lower maintenance due to stable fastening May require re-tightening
Cost Slightly higher Lower

👉 Quick Selection Tip

  • Fanged elevator bolts are ideal for high-load, high-vibration conveying systems, ensuring secure and maintenance-free operation
  • Ordinary elevator bolts are suitable for standard applications with lower load requirements

When to Choose Fanged Elevator Bolts

Choosing the right elevator bolt is essential for ensuring stable operation, reducing maintenance, and extending the service life of your conveyor system.

Fanged elevator bolts are recommended in the following situations:

 High Load Conveying Systems

When handling heavy materials such as cement, sand, or aggregates, fanged bolts provide stronger locking performance and prevent loosening under load.

 High-Speed or Continuous Operation

In systems running continuously or at high speeds, vibration can cause ordinary bolts to loosen. Fanged bolts ensure stable fastening over long periods.

Frequent Start–Stop Conditions

For applications with frequent start and stop cycles, additional vibration and impact occur. Fanged bolts help maintain a secure connection.

Difficult Installation Conditions

If access is limited and it is difficult to hold the bolt head during installation, fanged bolts simplify the process and improve efficiency.

Reduced Maintenance Requirements

For systems where maintenance access is limited or downtime must be minimized, fanged bolts reduce the need for re-tightening and inspections.

👉 Not sure which bolt fits your system?

Contact us for selection support or a complete bucket + bolt solution tailored to your application.