Shear bolts black nickel plated

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

Black nickel-plated shear bolts are specialized fasteners designed to provide both corrosion resistance and a controlled breaking point under specific torque or shear stress. Here’s a detailed description:

1. Material & Construction:

• Base Metal: Typically made from high-strength steel or alloy to ensure durability.

• Plating: Coated with black nickel, a dark, matte or semi-gloss finish that offers:

  • Corrosion Resistance: Protects against rust and environmental damage.

  • Aesthetic Appeal: Provides a sleek, non-reflective black finish.

  • Moderate Lubricity: Helps in tightening but is less slippery than zinc or chrome.

2. Shear Bolt Design:

• Purpose: Designed to shear off at a predetermined torque or load, acting as a mechanical fuse to protect machinery from overload damage.

• Weak Point: Often has a notched or reduced shank diameter to ensure controlled breaking.

• Shear bolts black nickel plated

• Common Applications: Used in agricultural equipment (e.g., rotary cutters, augers), automotive safety systems, and industrial machinery.

3. Key Features:

• Controlled Failure: Prevents costly damage by shearing before excessive force harms other components.

• Thread Type: May have fine or coarse threads depending on application (e.g., metric or SAE standards).

• Head Styles: Hex head, flange head, or specialty heads for specific torque requirements.

4. Advantages of Black Nickel Plating:

• Enhanced Durability: More wear-resistant than plain or zinc-plated bolts.

• Decorative Finish: Often used in visible applications where aesthetics matter.

• Better Adhesion: Paint or coatings adhere better than to bright nickel.

• Shear bolts black nickel plated

5. Common Uses:

• Agriculture: Shear bolts in PTO shafts, mower decks, and harvesters.

• Automotive: Safety-critical shear points in seat belts or drivetrains.

• Industrial Machinery: Overload protection in conveyors or gearboxes.