Shear bolt tapered tail

Cold heading process is one of the new processes for pressure machining of less or no cutting
metal. It is a processing method that utilizes the plastic deformation of metal under the action of
external forces, and with the aid of molds, redistributes and transfers the volume of metal to form
the required parts or blanks. The cold heading process is most suitable for producing standard
fasteners such as bolts, screws, nuts, rivets, and pins.etc

Tapered tail shear bolts are specialized fasteners designed to fail at a predetermined torque or shear load, protecting machinery from overload damage. Here’s a detailed description:

Key Features:

1. Tapered Tail Design

   • The bolt has a conical (tapered) section near the head or along the shank, which creates a stress concentration point.

   • This taper ensures controlled shearing under excessive force, preventing damage to connected components.

   • Shear bolt tapered tail

2. Shear Functionality

   • Engineered to break at a specific shear load, acting as a mechanical fuse.

   • Commonly used in power transmission systems (e.g., augers, conveyors, PTO shafts) to protect against jams or overloads.

3. Materials & Strength

   • Typically made from medium-carbon steel or alloy steel, heat-treated for consistent shear strength.

   • Some versions are zinc-plated or coated for corrosion resistance.

4. Head Types

   • May feature hex heads, flange heads, or other drive styles for easy installation.

   • Often marked with grade identifiers (e.g., “Grade 2” or shear load ratings).

5. Applications

   • Agricultural machinery (combine harvesters, tillers).

   • Industrial equipment (conveyors, crushers).

   • Automotive and aerospace systems requiring overload protection.

   • Shear bolt tapered tail

Advantages:

• Prevents costly equipment damage by shearing before mechanical failure occurs.

• Easy replacement post-failure, minimizing downtime.

• Precision-engineered shear points ensure reliability.

Common Standards:

• DIN, ISO, or OEM-specific specifications for dimensions and shear strength.