Hexagon head black zinc 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

Hexagonal Head Black Zinc Plating – Comprehensive Description

Hexagon head black zinc plated refers to a type of metal fastener (such as bolts, screws, or nuts) featuring a six-sided (hexagonal) head and a black zinc-coated finish. This combination provides both functional mechanical strength and enhanced corrosion resistance with an aesthetically dark appearance.

1. Hexagonal Head Design

• Shape: Six flat sides (hexagon) for tool engagement.

• Tool Compatibility: Driven by wrenches (spanner, socket, or Allen keys, depending on the subtype).

• Common Types:

  • Hex Head Bolts/Screws – Standard external wrenching.

  • Hex Flange Head – Integrated washer-like flange for load distribution.

  • Hex Socket Head (Allen Bolt) – Internal drive with a hexagonal recess.

2. Black Zinc Plating Finish

• Base Material: Typically carbon steel or alloy steel.

• Appearance: Matte black or dark gray with slight iridescence.

• Hexagon head black zinc plated

• Thickness: Typically 5–15 microns (including zinc layer + black topcoat).

3. Key Properties & Benefits

• Corrosion Resistance: Better than bare steel but less than hot-dip galvanizing; suitable for indoor or mildly corrosive environments.

• Aesthetic Appeal: Dark finish reduces glare and blends well in machinery, automotive, and electronics.

4. Common Applications

• Automotive: Engine components, brackets, and interior fittings.

• Machinery & Equipment: Assembly parts requiring corrosion resistance.

• Electronics & Enclosures: Black screws for aesthetic and anti-reflective purposes.

• Furniture & Construction: Decorative fasteners with moderate rust protection.

• Hexagon head black zinc plated

Conclusion

Hexagonal head black zinc-plated fasteners offer a balance of functionality, corrosion protection, and visual appeal, making them a popular choice for industrial, automotive, and decorative applications where moderate environmental resistance is sufficient.