Torx head shear bolt

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

Torx head shear bolts are specialized fasteners designed to provide secure, tamper-resistant connections in applications where safety and security are critical. Here’s a detailed description:

Key Features:

Torx Drive (Star Head)
- Features a 6-point star-shaped recess (Torx) for improved torque transmission and reduced cam-out compared to Phillips or slotted drives.
- Common sizes include T10, T15, T20, T25, T27, T30, etc., depending on the bolt’s diameter and strength requirements.
Shear Design
- The bolt head is designed to shear off (break away) once a specific torque is reached, leaving only the shank in place.
- This prevents over-tightening and makes removal difficult without specialized tools, enhancing security.
Tamper-Resistant
- After shearing, the remaining shank lacks a drive recess, making extraction challenging without drilling or a shear bolt extractor.
- Often used in public infrastructure, machinery, and safety-critical assemblies to deter vandalism or unauthorized access.
Materials & Coatings
- Typically made from hardened steel, stainless steel, or alloy metals for strength and corrosion resistance.
- Coatings may include zinc plating, black oxide, or galvanized finishes for durability.
Thread Types
- Available in coarse (UNC) or fine (UNF) threads, depending on the application.
- May feature fully threaded or partially threaded shanks.

Common Applications:

Utility poles, streetlights, and traffic signals (to prevent theft/tampering).
Automotive and aerospace assemblies (where vibration resistance is crucial).
Industrial machinery, electrical enclosures, and security systems.

Installation & Removal:

Installation: Driven with a Torx bit until the head snaps off at the predetermined torque.
Removal: Requires a left-handed drill bit, easy-out extractor, or specialized shear bolt removal tools.