M20 Brass Plain Washer – Premium Flat Washer for Reliable Fastening

Nafees Metal Industries proudly presents the M20 Brass Plain Washer, a precision-engineered component designed to deliver durability, conductivity, and corrosion resistance across a range of industrial and electrical applications. Manufactured in our Mumbai-based facility using high-grade brass, the M20 Brass Plain Washer is ideal for applications involving M20 bolts or screws, where secure load distribution and surface protection are essential.

Whether you are installing heavy-duty electrical equipment, setting up mechanical systems, or assembling piping networks, the M20 Brass Plain Washer serves as a trusted solution. Its non-corrosive, non-magnetic, and conductive properties make it the go-to washer for professionals who demand reliability and performance in every fastening task.

This washer not only safeguards surfaces but also enhances the longevity of fastened components by evenly spreading pressure and minimizing bolt loosening.

What is an M20 Brass Plain Washer?

An M20 Brass Plain Washer is a flat, circular metallic disc with a central hole sized specifically for M20 bolts or screws, typically 20mm in diameter. The purpose of the M20 Brass Plain Washer is to distribute the clamping load of the bolt evenly across the surface area, preventing localized stress, surface damage, and long-term deformation.

Crafted from high-quality commercial-grade brass, the M20 Brass Plain Washer offers excellent mechanical stability and resistance to corrosion, making it highly suitable for use in environments where moisture, electrical conductivity, or chemical exposure is a concern.

In addition to its mechanical functions, the M20 Brass Plain Washer provides a neat and finished appearance to bolted joints, especially in visible or decorative applications. Whether you are dealing with large industrial installations or critical electrical fittings, this washer ensures a secure and long-lasting connection.

The M20 Brass Plain Washer is a key product in our range of Industrial Brass Washers, specifically designed for medium to heavy-duty fastening applications.

Why Choose Brass for M20 Plain Washers?

Brass is an ideal material for manufacturing plain washers, especially for applications requiring corrosion resistance, electrical conductivity, and durability. The M20 Brass Plain Washer leverages all the mechanical and chemical advantages of brass, making it a preferred choice across industrial sectors.

Here’s why brass is perfect for the M20 Brass Plain Washer:

• Corrosion Resistance: The M20 Brass Plain Washer is highly resistant to rust and corrosion, especially in moist, marine, or chemically exposed environments. This makes it a reliable solution for long-term outdoor and industrial applications.

• Electrical Conductivity: Brass is an excellent conductor of electricity. The M20 Brass Plain Washer is often used in electrical systems where conductivity and grounding are essential, such as switchboards and terminal fittings.

• Non-Magnetic and Non-Sparking: These properties make the M20 Brass Plain Washer safe for use in sensitive environments such as electrical substations, explosive zones, or electronic equipment where magnetic interference or sparks could be dangerous.

• Thermal Stability: Brass maintains its structural integrity under a wide range of temperatures. This means that the M20 Brass Plain Washer can withstand both hot and cold environments without deforming or losing strength.

• Cost-Effective and Aesthetic: In addition to functionality, brass offers a natural golden finish that enhances the appearance of visible assemblies. The M20 Brass Plain Washer is not only effective but also visually appealing.

By choosing the M20 Brass Plain Washer, you benefit from all these advantages, ensuring high performance, safety, and longevity in your fastening systems.

Manufacturing Process of M20 Brass Plain Washer

At Nafees Metal Industries, every brass washer is manufactured with precision and care to ensure quality, consistency, and performance. Our facility in Mumbai follows ISO-compliant procedures and uses state-of-the-art machinery to create washers that meet international standards.

Here’s how our M20 washers are made:

• Raw Material Selection: High-quality commercial brass (typically CuZn37) is sourced and tested for purity and strength before production begins.

• Cold Stamping: Brass sheets are punched using precision dies to achieve the correct inner diameter (to fit M20 bolts) and outer diameter as per DIN 125 / ISO 7089 specifications.

• Deburring & Edge Finishing: All washers are carefully deburred to eliminate sharp edges, ensuring safe handling and smooth installation.

• Surface Treatment: Depending on the customer’s requirement, washers may be polished, electroplated, or left with a natural brass finish.

• Quality Inspection: Each batch undergoes stringent quality checks for dimensions, thickness, flatness, and surface uniformity.

Our process ensures that every washer not only fits perfectly but also performs reliably in demanding industrial conditions. These brass flat washers are made to last, resisting wear, corrosion, and deformation across a wide range of environments.

Key Features

Our M20 brass washers are designed to meet the demands of industrial, electrical, and mechanical fastening systems. These components offer a blend of performance, durability, and precision that make them a top choice for professionals across various sectors.

Here are the key features:

• Perfect Fit for M20 Bolts: Designed to match the diameter and thread profile of M20 bolts and screws, ensuring secure and stable fastening.

• Excellent Load Distribution: Helps spread the load over a wider surface area, preventing surface damage, cracking, or indentation during fastening.

• Corrosion Resistance: Brass provides natural resistance to oxidation and chemical exposure, making these washers ideal for indoor, marine, or humid environments.

• Electrical Conductivity: Suitable for applications requiring grounding or conductivity, such as electrical enclosures, switchboards, or power panels.

• Smooth Finish: Every washer is deburred and polished to ensure there are no sharp edges, reducing risk during handling and preventing surface scratches.

• Customizable Coatings: Available in plain, polished, or electroplated finishes, depending on your functional or aesthetic requirements.

• Bulk Production Ready: As a leading Brass Plain Washers Manufacturer, we ensure timely supply for bulk industrial needs, OEM projects, or distribution channels.

• Proudly Made in India: All washers are manufactured at our Mumbai-based facility with strict quality controls and traceability at every step.

Each washer combines functionality with long-term reliability, making it an ideal choice for businesses looking for consistent performance.

Technical Specifications

Every washer produced at Nafees Metal Industries adheres to stringent standards for quality, fitment, and finish. Below are the detailed specifications of our M20 size brass washer, designed for professional and industrial-grade use.

This data ensures that the washer fits seamlessly into your production or assembly line without requiring rework or adaptation.

Whether you’re an OEM looking for consistency or an industrial buyer in need of volume, our products are engineered to deliver quality at scale. As one of India’s trusted names in Industrial Brass Washers, our products meet both domestic and export expectations.

Applications

Brass washers, especially in the M20 size range, are used extensively across industries where conductivity, corrosion resistance, and structural reliability are critical. The M20 Brass Plain Washer is a versatile component that performs exceptionally well in both mechanical and electrical systems.

Common Applications Include:

• Electrical Panels & Switchboards: The washer provides conductivity and corrosion resistance, making it ideal for grounding and terminal connections.

• Plumbing & HVAC Installations: Brass resists moisture and chemical exposure, making it perfect for pipe fittings, valve assemblies, and heating units.

• Heavy-Duty Machinery: Ensures proper load distribution and prevents surface deformation during high-torque tightening of bolts.

• Marine Equipment: Used in boats, ships, and offshore structures due to its non-corrosive nature.

• Power Distribution Boxes: Helps secure electrical terminals and prevents over-tightening that could crack insulation or enclosures.

• Construction & Infrastructure Projects: Used in fastening systems that require both durability and environmental resistance.

• Aerospace & Automotive Components: Preferred in niche areas where non-magnetic and vibration-dampening washers are needed.

As a leading Brass Plain Washers Manufacturer, Nafees Metal Industries ensures that every washer is application-ready and capable of performing under stress, heat, and exposure. From small workshops to multinational OEMs, our washers are trusted for consistency and quality.

Advantages of Using M20 Brass Plain Washer

Choosing the M20 Brass Plain Washer from Nafees Metal Industries provides several functional and commercial advantages. These washers are not just essential hardware components—they add reliability, longevity, and value to your fastening systems.

Key Benefits:

• Uniform Load Distribution: These washers spread the force of the fastener evenly, protecting surfaces from stress, cracks, or warping.

• High Corrosion Resistance: Made from premium brass, they withstand oxidation, moisture, and chemical exposure—making them suitable for both indoor and outdoor use.

• Electrical Compatibility: Their excellent conductivity makes them ideal for electrical and grounding systems where metal continuity is necessary.

• Non-Sparking & Non-Magnetic: Safe to use in explosive or magnetically sensitive environments such as switchyards, electronic panels, and defense equipment.

• Dimensional Accuracy: Manufactured to exact standards, ensuring compatibility with M20 bolts without any need for modification.

• Customizable Finishes: Available in natural, polished, or coated surfaces depending on the application or aesthetic preference.

• Long-Term Durability: With strong resistance to wear and environmental degradation, these washers maintain their properties over time.

• Ease of Handling: Lightweight, non-brittle, and easy to install during high-speed assembly operations.

• Bulk-Order Efficiency: Our washers are available in volume with consistent quality, making them ideal for OEMs, large contractors, and industrial distributors.

When you buy brass washers online from Nafees Metal Industries, you get the added assurance of precision manufacturing, fast shipping, and responsive customer support—all tailored to your project needs.

Bulk Buying & Customization Options

At Nafees Metal Industries, we understand that industrial buyers and OEMs require consistent supply, tailored specifications, and responsive service. That’s why our M20 Brass Plain Washer is available in bulk quantities with full customization options.

Whether you’re a contractor, machinery manufacturer, or electrical component assembler, we offer scalable solutions designed for both domestic and international markets.

Bulk Supply Advantages:

• Ready-to-Dispatch Inventory: We maintain stock of standard brass flat washers to ensure short lead times for frequent sizes like M20.

• Flexible Order Quantities: From small prototype batches to high-volume production runs, we can meet your requirement—without compromising on quality.

• Custom Finishes: Choose between polished, natural, or electroplated brass finishes to meet your technical or branding needs.

• Tailored Dimensions: Thickness, outer diameter, and tolerances can be customized based on your design or fitting needs.

• Packaging Options: Poly bags, corrugated boxes, export-safe packaging, or fully branded labeling—customized for your warehouse or retail preferences.

• Documentation Support: For exports, we provide all relevant documents including test reports, material certifications, and HS code alignment.

We are committed to supporting businesses that seek high-quality fastening solutions with flexible supply arrangements. As a leading name among Brass Plain Washers Manufacturers, we prioritize long-term relationships built on trust, transparency, and technical excellence.

Case Study – Improving Assembly Efficiency Using M20 Brass Plain Washers

A major industrial assembler specializing in electrical enclosures was experiencing two major issues during the assembly of outdoor power panels:

• Bolt Loosening Over Time: The fasteners used were not distributing the load effectively, leading to loosening under vibration.

• Surface Corrosion: Standard steel washers were corroding quickly, even under semi-sheltered outdoor conditions, leading to frequent maintenance requests.

After testing alternatives, they switched to our M20 Brass Plain Washer with a polished finish.

Results Achieved:

• Assembly Time Reduced by 22%: Due to better alignment and ease of torque application, the assembly crew reported faster installation across multiple units.

• Zero Surface Damage: The washers prevented indentation and cracking on powder-coated panels, improving product longevity.

• No Corrosion After 6 Months: Even in a high-humidity, coastal environment, the brass washers retained their shine and structural integrity.

• Reduced Maintenance Calls: There was a noticeable drop in field complaints regarding bolt loosening and rust stains around joints.

• Increased Repeat Orders: The client placed two additional orders within three months, increasing their purchase volume by 40%.

This example reflects how the M20 Brass Plain Washer isn’t just a component—it’s a productivity enhancer. It reduces assembly line friction, lowers post-installation issues, and adds long-term value to the final product.

By choosing our industrial-grade brass washers, manufacturers can improve both operational efficiency and customer satisfaction.

Why Choose Nafees Metal Industries?

When it comes to sourcing precision-engineered brass washers, Nafees Metal Industries stands out as a trusted and reputed name in India. We specialize in manufacturing a wide range of brass washers, including the widely used M20 Brass Plain Washer, tailored to meet diverse industrial requirements.

Here’s why we are the preferred choice for thousands of buyers across India and overseas:

• Dedicated Manufacturing Facility in Mumbai: Our fully-equipped manufacturing unit in Mumbai serves as the backbone of our operations. With modern stamping machines, in-house tool development, quality inspection setups, and trained technicians, we ensure that every washer rolling out meets national and international standards.
• Specialized in Brass Washer Production: We’re not just another hardware supplier—we are one of the few focused Brass Plain Washers Manufacturers in India with in-depth knowledge and experience in producing flat, spring, and disc washers in multiple sizes and finishes.
• Quality You Can Trust: Each M20 Brass Plain Washer is produced with precision and goes through rigorous quality checks for:

1. Dimensional accuracy
2. Surface treatment
3. Flatness and concentricity
4. Material consistency and traceability

• Custom Support for Industrial Buyers: We understand that every application is different. That’s why we offer:

1. OEM packaging

2. Label customization

3. Material testing certifications

4. Export documentation

5. Fast-response customer service

• Competitive Pricing with Consistent Supply: Our Mumbai facility allows us to manage production and logistics efficiently, helping us offer competitive prices without compromising on quality or delivery timelines.

By choosing Nafees Metal Industries, you’re partnering with a manufacturer who blends traditional craftsmanship with modern engineering—offering industrial brass washers that work flawlessly, last longer, and meet your exact needs.

Frequently Asked Questions (FAQs)

Here are 15 practical and informative FAQs to help customers better understand the M20 Brass Plain Washer and make confident purchasing decisions:

1. What is the purpose of using a brass plain washer with M20 bolts?
Brass plain washers distribute the load of M20 bolts evenly, prevent surface damage, and enhance joint stability. They also provide electrical conductivity and corrosion resistance.

2. Where can I use the M20 Brass Plain Washer?
These washers are ideal for electrical panels, plumbing assemblies, machinery, marine equipment, and any environment where corrosion resistance and conductivity are important.

3. Do brass washers rust over time?
No. Brass is highly resistant to rust and corrosion, especially in humid or chemical-prone environments, making it a reliable material for long-term use.

4. Can I use this washer in electrical applications?
Yes, absolutely. Brass offers excellent electrical conductivity, making it suitable for switchboards, terminal boxes, and grounding systems.

5. What are the dimensions of the M20 Brass Plain Washer?
It typically has an inner diameter of ~21 mm and outer diameter as per DIN 125 or ISO 7089, with customizable thickness between 1.5 mm and 3 mm.

6. Are these washers available in different finishes?
Yes. You can choose between natural brass, polished, or electroplated finishes depending on your application needs.

7. How do I place a bulk order for M20 brass washers?
You can contact us directly through our website to buy brass washers online or submit your bulk inquiry for a quotation and delivery timeline.

8. Are you a manufacturer or a distributor?
We are a direct Brass Plain Washers Manufacturer, producing all washers in-house at our Mumbai facility.

9. Can I get washers customized in terms of size or thickness?
Yes. We offer customizations on outer diameter, thickness, and packaging based on your technical requirements.

10. Do you provide test certificates or compliance documents?
Yes, upon request, we provide material test reports, dimensional certificates, and standard compliance documentation (DIN/IS/ISO).

11. Is this washer suitable for marine applications?
Yes. The M20 brass washer performs well in marine environments due to its corrosion-resistant properties.

12. Can I use this washer with stainless steel bolts?
Yes, brass washers are compatible with stainless steel bolts, particularly when electrical isolation or conductivity is required.

13. What packaging options do you provide?
We offer packaging in poly bags, corrugated boxes, or custom-labeled cartons as per customer requirements, especially for OEMs and exporters.

14. Do you ship across India and internationally?
Yes. We ship across India and support global exports with full documentation and packaging support.

15. Why should I choose your M20 brass washer over others in the market?
We combine in-house manufacturing, consistent quality, customization support, and competitive pricing—making us a reliable partner for all your brass flat washers and fastening needs.