Hexagonal safety wire 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

A Hexagon Safety Wire Bolt is a specialized fastener designed to remain secure in high-vibration or high-torque environments, commonly used in aerospace, automotive, and industrial applications. Here’s a detailed description:

Key Features:

1. Hexagon Head – Features a standard six-sided (hex) head for easy tightening and loosening with a wrench or socket.

2. Safety Wire Holes – Includes pre-drilled holes (usually two) in the head or shank to allow safety wire (lock wire) to be threaded through, preventing loosening due to vibration.

3. Material – Typically made from high-strength materials like:

   • Stainless Steel (e.g., AISI 304, 316) for corrosion resistance.

   • Alloy Steel (e.g., Grade 8, 10.9) for high tensile strength.

   • Titanium (e.g., Grade 5) for lightweight, high-strength applications.

4. Thread Type – May have fine or coarse threads depending on the application (e.g., metric or SAE).

5. Surface Finish – Often coated with corrosion-resistant treatments like zinc plating, cadmium, or anodizing (for aluminum variants).

Common Applications:

• Aircraft & Aerospace – Securing critical components like engine parts, landing gear, and control surfaces.

• Motorsports – Used in engines, exhaust systems, and suspension to prevent bolt failure.

• Military & Defense – Ensures reliability in firearms, vehicles, and machinery.

• Industrial Machinery – Prevents loosening in vibrating equipment like turbines and pumps.

Safety Wire Method:

• The bolt is tightened to the correct torque, and then a stainless steel wire is threaded through the holes and twisted tightly, connecting it to another secured bolt or fixed point. This prevents rotation in either direction.

Advantages:

• Vibration Resistance – Prevents self-loosening in dynamic environments.

• Reliability – Provides a fail-safe mechanical lock where threadlockers may fail.

• Reusable – Unlike chemical adhesives, safety wire can be replaced.