Electro Zinc Plating
Electro Zinc Plated Fasteners Manufacturer in India
BRK Industries is a trusted Electro Zinc Plated Fasteners Manufacturer and Exporter in India, supplying premium-quality bolts, nuts, washers, threaded rods and industrial fasteners with a bright silver zinc finish and reliable corrosion protection.
Electro Zinc Plating, also known as Electro Galvanizing, deposits a thin and uniform layer of zinc on steel fasteners through an electrolytic process. This coating improves appearance, protects against rust in indoor and moderately corrosive environments and maintains excellent thread accuracy, making it suitable for automotive, electrical, machinery and general engineering applications.
What is Electro Zinc Plating?
Electro Zinc Plating is an electrochemical coating process where zinc ions are deposited onto the surface of steel fasteners using an electric current. Unlike Hot Dip Galvanizing, this process creates a thinner and smoother coating, making it ideal for precision-threaded fasteners that require an attractive finish and controlled dimensions.
Why Choose Electro Zinc Plated Fasteners?
- Bright Silver Finish
- Uniform Thin Coating
- Improved Corrosion Resistance
- Excellent Thread Fit
- Cost-Effective Surface Protection
- Suitable for Indoor Industrial Applications
Electro Zinc Plating Process for Fasteners
Our Dacromet-coated fasteners undergo a carefully controlled coating process to ensure consistent quality and long-lasting performance.
1
Surface Cleaning
Fasteners are cleaned using alkaline degreasers to remove oil, grease and manufacturing contaminants.
2
Acid Pickling
Rust, mill scale and oxidation are removed to prepare a clean steel surface.
3
Water Rinsing
Multiple rinsing stages eliminate chemical residues before plating.
4
Electro Zinc Deposition
The fasteners are immersed in a zinc electrolyte solution where electric current deposits a uniform zinc layer onto the steel surface.
5
Passivation
A protective passivation layer is applied to improve corrosion resistance and maintain the bright finish.
6
Drying & Inspection
Each batch is inspected for coating quality, thread accuracy and finish consistency before dispatch.
Zinc Plating vs Hot Dip Galvanizing
Feature | Electro Zinc Plated | Hot Dip Galvanized |
|---|---|---|
Finish | Bright Silver | Matte Grey |
Coating Thickness | Thin | Thick |
Thread Accuracy | Excellent | Moderate |
Indoor Use | Excellent | Excellent |
Outdoor Heavy Exposure | Moderate | Superior |
Precision Components | Ideal | Less Suitable |
This comparison helps engineers select the appropriate coating depending on environmental conditions and fastening requirements.
Benefits of Electro Zinc Plated Fasteners
Bright Professional Appearance
Provides a clean silver finish suitable for visible industrial components.
Reliable Corrosion Protection
Protects steel fasteners in indoor and moderately corrosive environments.
Precision Thread Performance
Thin coating preserves thread engagement and assembly accuracy.
Cost-Effective
Balances appearance and protection for many industrial applications.
Smooth Uniform Finish
Suitable for automated assembly and attractive exposed hardware.
Modern Passivation Options
Chromium-free systems are available for many compliance needs.
Products Range
We manufacture and supply:
- Zinc Plated Hex Bolts
- Heavy Hex Bolts
- Allen Bolts
- Machine Screws
- Threaded Rods
- Hex Nuts
- Flange Nuts
- Flat Washers
- Flat Washers
- Spring Washers
- Custom Industrial Fasteners
Available Standards
- DIN Standards
- ISO Standards
- ASTM Standards
- BS Standards
- IS Standards
Material Grades
- Carbon Steel
- Mild Steel
- High Tensile Steel
- Alloy Steel
Electro Zinc Plated Fasteners are widely used across multiple industries where appearance, precision and moderate corrosion resistance are required.
Technical Specifications
| Parameter | Specification |
|---|---|
| Coating Type | Electro Zinc Plating |
| Finish | Bright Silver |
| Protection | Zinc Barrier Coating |
| Thread Accuracy | Excellent |
| Surface Appearance | Smooth & Uniform |
| Suitable Environment | Indoor & Moderate Outdoor |
| Standards | DIN, ISO, ASTM |
Important Note: Threaded HDG fasteners often require properly matched galvanized nuts because the zinc coating increases thread thickness. Oversized tapped nuts are commonly used for proper assembly.
Applications of Electro Zinc Plating Fasteners
Electro Zinc Plated Fasteners are widely used across multiple industries where appearance, precision and moderate corrosion resistance are required.
Automotive Industry
- Vehicle Components
- Engine Assemblies
- Interior Hardware
- Chassis Components
Electrical Industry
- Switchgear
- Control Panels
- Cable Supports
- Electrical Enclosures
Industrial Machinery
- Machine Assemblies
- Equipment Manufacturing
- Industrial Tools
- Precision Components
Construction
- Indoor Steel Structures
- HVAC Systems
- Building Hardware
- Mechanical Installations
Furniture & Appliances
- Office Furniture
- Home Appliances
- Storage Systems
- Metal Fabrication
Frequently Asked Questions
Electro Zinc Plating is an electrolytic process that deposits a thin zinc coating on steel fasteners for improved corrosion resistance and appearance.
It performs well in indoor and moderately corrosive environments, while harsher outdoor exposure often benefits from thicker protective systems.
Electro Zinc provides a thinner, brighter coating with excellent thread accuracy, whereas Hot Dip Galvanizing provides a thicker coating for stronger outdoor corrosion protection.
Automotive, electrical, machinery, HVAC, furniture and general engineering industries commonly use zinc plated fasteners.
Yes, BRK Industries offers customized sizes, threads and specifications for industrial requirements.
Yes, they are manufactured according to international standards and supplied for domestic and export markets.