M39 Brass Plain Washer – Premium Flat Brass Washers for High-Performance Industrial Use

At Nafees Metal Industries, we bring you the M39 Brass Plain Washer — a precision-engineered washer designed for high-performance industrial environments. Crafted from high-quality commercial-grade brass, each M39 Brass Plain Washer is manufactured to provide unmatched durability, excellent load distribution, and long-term reliability across a variety of mechanical, plumbing, and electrical applications.

Brass, being naturally corrosion-resistant and conductive, makes the M39 Brass Plain Washer an ideal choice for engineers and industries that demand consistent performance under demanding conditions. Whether you’re assembling transformer units, fastening piping systems, or enhancing electrical panels, our M39 Brass Plain Washer ensures vibration resistance, surface protection, and superior torque control.

As one of the leading Brass Plain Washers Manufacturers in India, Nafees Metal Industries maintains strict dimensional accuracy and compliance with global standards like IS 2016 and DIN 125. We offer a range of custom sizes and finishes for every M39 Brass Plain Washer, tailored to meet your industrial needs.

This washer plays a vital role in minimizing wear and damage to surfaces while ensuring optimal tightening between bolts and components. For businesses and OEMs looking to enhance joint integrity and extend the life of assemblies, the M39 Brass Plain Washer is the ideal solution.

What is an M39 Brass Plain Washer?

An M39 Brass Plain Washer is a circular, flat disc with a centered hole precisely sized to accommodate M39 bolts or threaded fasteners (39 mm in diameter). It serves as a critical spacer that distributes the load of the bolt or nut over a larger surface area, preventing stress concentration on the fastening surface and reducing the risk of damage to the material being fastened.

Manufactured using high-quality commercial brass, the M39 Brass Plain Washer is especially valued in industries where corrosion resistance, electrical conductivity, and non-magnetic properties are required. These include electrical equipment, marine assemblies, plumbing installations, and mechanical structures.

The M39 Brass Plain Washer offers both mechanical support and electrical insulation in one unit. Due to its size and robust build, it is ideal for securing heavy machinery parts, large electrical components, and high-load connections. Additionally, it enhances the life of the fastened components by minimizing wear and tear from vibrations, heat, or tightening torque.

A distinguishing feature of the M39 Brass Plain Washer is its compatibility with brass and other non-ferrous fasteners, making it ideal for preventing galvanic corrosion, especially in dissimilar metal assemblies. The washer’s standardized dimensions follow international norms such as DIN 125, IS 2016, and ISO 7089, ensuring a perfect fit in industrial settings.

In summary, the M39 Brass Plain Washer isn’t just a fastener accessory—it’s an essential component for high-load, precision-sensitive assemblies where quality and durability matter most.

Why Use Brass for M39 Washers?

Choosing brass as the base material for the M39 Brass Plain Washer offers numerous mechanical, chemical, and practical advantages—making it one of the most dependable choices for a wide range of industrial and commercial applications.

First and foremost, brass is naturally resistant to corrosion. When you use an M39 Brass Plain Washer, you eliminate the common problems associated with rust or degradation over time, especially in moist, chemical, or mildly corrosive environments. This makes it ideal for both indoor and semi-outdoor usage where moisture exposure might compromise the performance of steel washers.

Additionally, the M39 Brass Plain Washer is highly conductive—making it the preferred washer in applications that involve electrical currents or grounding. It ensures smooth, uninterrupted electrical flow, especially in sensitive systems like transformer terminals, circuit boards, and motor connectors.

Another reason to use brass for the M39 Brass Plain Washer is its excellent machinability. The material allows for precise punching, deburring, and shaping—even at larger sizes like M39—ensuring each washer fits perfectly, with uniform thickness and burr-free edges.

Brass also has anti-sparking properties. This means the M39 Brass Plain Washer is safe for use in explosive or flammable environments, such as oil refineries, gas processing plants, or chemical storage areas, where the use of steel washers may pose a risk.

Lastly, its aesthetic appeal cannot be ignored. The M39 Brass Plain Washer has a shiny, professional finish that’s suitable for visible applications such as display fittings, premium machinery, and decorative assemblies.

When you choose the M39 Brass Plain Washer, you’re investing in a component that combines strength, safety, conductivity, and longevity—all in a cost-effective package.

How M39 Brass Plain Washers Are Manufactured

At Nafees Metal Industries, we follow a meticulous, ISO-compliant manufacturing process to ensure every washer meets high-quality standards. The production begins with selecting premium-grade commercial brass sheets, known for their durability and corrosion resistance.

Using precision stamping techniques, washers are punched to meet the exact dimensional requirements for M39 bolt compatibility. The washers then undergo a deburring process to remove any sharp edges, followed by polishing or electro-finishing as per the client’s specification. This ensures a smooth surface finish and safe handling during assembly.

Advanced measuring tools are used to check for dimensional accuracy, including inner and outer diameter tolerances, flatness, and concentricity. Every batch of M39 brass washers is subjected to stringent quality checks before being packed for delivery.

We also provide customizations such as increased thickness, special coatings, and branded packaging based on client requirements. With in-house tooling capabilities, we ensure quick turnarounds even on bulk orders.

Key Features of M39 Brass Plain Washer

Our M39 brass washers are engineered to provide a perfect balance of strength, stability, and performance across a wide range of industrial applications. Designed for use with M39 bolts, these washers offer precise fitment and long-term reliability.

Key highlights include:

• Accurate Dimensions: Manufactured to meet DIN 125 and IS 2016 standards, ensuring consistent inner and outer diameters.

• High Corrosion Resistance: Ideal for environments where exposure to moisture, chemicals, or varying temperatures is common.

• Electrical Conductivity: Brass material supports applications requiring conductive fasteners, especially in electrical systems.

• Non-Sparking & Non-Magnetic: Safe for use in sensitive or explosive environments.

• Custom Finishes Available: Choose from polished, anti-tarnish, or untreated finishes to match your exact application needs.

• Smooth Surface & Edges: Prevents scratching or wear on surfaces during installation.

• Compatibility with Brass Bolts: Minimizes galvanic corrosion in metal-to-metal joints.

Each M39 Brass Plain Washer is crafted with precision and tested for quality before shipment, ensuring our customers receive a product that performs flawlessly under stress.

Technical Specifications

Our M39 brass washers are produced with strict adherence to industrial norms and are available in customizable dimensions to suit specialized applications. Below are the standard specifications for our M39 Brass Plain Washer:

These washers are ready for large-scale deployment and can be delivered with your desired finish and packing configuration. Whether you need them for machinery, switchgear, or high-load subassemblies, this M39 Brass Plain Washer fits the bill.

Applications of M39 Brass Plain Washer

The M39 Brass Plain Washer is designed for performance in demanding industrial environments. Thanks to its durability, conductivity, and corrosion resistance, it serves a variety of functions across sectors.

Common applications include:

• Electrical Equipment: Ideal for busbars, switchboards, and terminals where conductivity and insulation are required.

• Plumbing & Sanitation Systems: Prevents galvanic corrosion in pipe flanges, valves, and plumbing joints.

• Heavy-Duty Machinery: Distributes high-load fastening pressure across structural joints and reduces surface wear.

• Marine & Coastal Installations: Withstands saline exposure in offshore and shipbuilding assemblies.

• Transformer Assemblies: Ensures safe and consistent pressure without sparking or conductivity loss.

• Construction Hardware: Offers long-term resistance in exposed fastener connections.

• Railway Components: Secures large bolts in train and track infrastructure with anti-rust reliability.

Because of its size, strength, and material composition, the M39 Brass Plain Washer is especially valued in projects that require vibration damping, spark-proof environments, and long-term sealing.

Advantages of Using M39 Brass Plain Washers

The M39 Brass Plain Washer offers a combination of mechanical strength, chemical resistance, and application-specific advantages that make it the preferred choice for industrial fastening.

Key benefits include:

• Superior Load Distribution: Prevents localized stress on the fastening surface, enhancing the lifespan of components.

• Corrosion Resistance: Excellent performance in moisture-prone or chemically active environments, reducing maintenance frequency.

• Electrical Conductivity: Perfect for grounding, terminal mounting, and electrical assemblies where current flow is critical.

• Non-Sparking Safety: Suitable for flammable or explosive zones like chemical plants, oil rigs, or fuel storage facilities.

• Thermal Stability: Maintains integrity under varying temperatures, ideal for heat-generating equipment.

• Visual Appeal: Brass provides a clean and professional appearance in visible installations.

• Compatibility with Brass Bolts: Helps avoid galvanic corrosion that can occur when different metals are paired.

• Custom Finish Options: Available with polished, plain, or anti-tarnish finishes based on application requirements.

• Easy to Handle: Lightweight and safe for manual or automated assembly.

• Bulk Availability: Ready stock and high-capacity manufacturing for OEMs and contractors.

Selecting M39 Brass Plain Washers ensures reliability, long-term value, and a reduced total cost of ownership in critical fastening applications.

Buy M39 Brass Plain Washers in Bulk – Leading Brass Plain Washers Manufacturer in India

Nafees Metal Industries is one of the most trusted names when it comes to high-quality Brass Flat Washers manufacturing in India. As a dedicated Brass Plain Washers Manufacturer, we specialize in producing premium-grade components like the M39 Brass Plain Washer, designed for durability, performance, and precision.

We maintain a robust inventory of industrial brass washers in multiple sizes, thicknesses, and finishes—ready for bulk orders and immediate dispatch. Whether you are an OEM, distributor, or a direct industrial buyer, we provide the flexibility, quality, and support you need to streamline your procurement process.

Why choose us:

• Bulk Supply Capability: We maintain stock for high-demand sizes like M39, ensuring zero downtime for your assembly lines.

• Custom Finishes and Branding: We can provide washers with electro-polishing, tarnish-resistant coatings, and private labeling.

• Competitive Pricing: Direct-from-manufacturer pricing helps reduce your per-unit costs.

• Fast Nationwide Shipping: We offer timely dispatch and logistics support across India.

• Export Support: Complete documentation and packaging for international shipments.

If you’re looking to Buy Brass Washers Online or need tailored fastening solutions, Nafees Metal Industries ensures dependable quality, high-volume availability, and unmatched customer service.

Case Study: Improving Durability in Transformer Assembly

A leading transformer manufacturing company in southern India faced recurring issues with rust, bolt loosening, and surface degradation while using standard steel washers in high-voltage equipment. These problems led to increased maintenance cycles and occasional field failures.

After a thorough performance audit, the engineering team switched to our M39 Brass Plain Washer, seeking better conductivity, corrosion resistance, and long-term reliability.

Results after implementation:

• 100% Elimination of Corrosion: Even after 9 months of indoor and semi-exposed usage, the washers showed no signs of rust or tarnish.

• Improved Electrical Performance: Brass conductivity provided stable current flow, improving transformer efficiency.

• Reduced Assembly Downtime: The polished finish and precision fit allowed faster installation, reducing total assembly time by 18%.

• Increased Lifespan of Components: The washers significantly reduced surface wear, protecting delicate parts during bolting.

Following this success, the company standardized the M39 Brass Plain Washer across all transformer models and increased their order volume by 60% within three months. This case highlights how high-quality Industrial Brass Washers can directly improve product reliability and brand reputation.

Why Choose Nafees Metal Industries?

At Nafees Metal industries, we take pride in being a specialized and dedicated Brass Plain Washers Manufacturer with decades of experience in producing top-quality fastening solutions. Our reputation is built on consistent quality, timely delivery, and deep technical expertise in washer manufacturing.

All our M39 Brass Plain Washers are proudly manufactured at our advanced facility in Mumbai, equipped with precision stamping machinery, in-house tooling, and automated quality control systems. This enables us to maintain tight tolerances, high production capacity, and flexibility in customization.

What sets us apart:

• Mumbai-Based Manufacturing Unit: Centrally located for rapid pan-India and export logistics.

• Complete In-House Production: From raw material to finished packaging, all processes are managed under one roof.

• Expertise in Brass Washer Sizes: We manufacture washers ranging from M3 to M60, including custom specifications.

• ISO-Compliant Processes: Ensuring consistency in every batch.

• Responsive Customer Support: Dedicated sales and technical team to assist with product selection, bulk pricing, and order tracking.

• Trusted by OEMs and Exporters: Our clients span across industries in India and international markets.

When you choose Nafees Metal Industries, you’re not just buying a component—you’re investing in reliability, precision, and long-term performance backed by one of the most trusted names in washer manufacturing.

Frequently Asked Questions (FAQs)

1. What is the standard size of an M39 Brass Plain Washer?
   It typically has an inner diameter of approximately 39.5 mm to fit M39 bolts, with the outer diameter and thickness as per DIN 125 / IS 2016 standards.

2. Where are your brass washers manufactured?
   All our brass washers, including the M39 variant, are proudly manufactured at our ISO-compliant unit in Mumbai, India.

3. Are these washers suitable for electrical applications?
   Yes, brass offers excellent electrical conductivity, making these washers ideal for switchgear, transformers, and other electrical assemblies.

4. Do you offer custom finishes or coatings?
   Absolutely. We offer plain, polished, and anti-tarnish finishes to suit various industrial requirements.

5. Can I get M39 Brass Plain Washers in bulk quantities?
   Yes, we specialize in bulk supply for OEMs, exporters, and high-volume users. You can also Buy Brass Washers Online through our website or by contacting our team directly.

6. What is the thickness range available for this washer?
   Standard thickness ranges from 2.5 mm to 4 mm. However, we offer custom thicknesses upon request.

7. Do these washers prevent corrosion in marine or chemical environments?
   Yes, brass is naturally corrosion-resistant and performs well in mildly aggressive and saline environments, making it suitable for Industrial Brass Washers applications.

8. Are M39 brass washers reusable?
   In most cases, yes. Due to their strength and anti-corrosive nature, they can be reused unless damaged during application.

9. Can you provide technical drawings or datasheets?
   Yes, we provide complete technical documentation, including CAD drawings, datasheets, and test reports upon request.

10. How does brass compare to stainless steel for washers?
    While stainless steel is stronger, brass offers better electrical conductivity, corrosion resistance in certain environments, and non-sparking properties—ideal for specific industries.

11. Do you offer international shipping?
    Yes, we ship globally with export-ready packaging and complete documentation support.

12. What other sizes of brass washers do you manufacture?
    We manufacture a full range from M3 to M60, including custom dimensions based on client needs. Our extensive line of Brass Flat Washers is suitable for nearly every industrial application.

13. What standards do your washers comply with?
    Our washers conform to IS 2016, DIN 125, and ISO 7089 specifications.

14. Can I get branded packaging or private labeling?
    Yes, we offer personalized branding, labeling, and barcoding services for large orders.

15. Why should I choose Nafees Metal Industries?
    As one of the most reliable Brass Plain Washers Manufacturers in India, we combine in-house production, high-volume capacity, quality control, and expert support to deliver washers that consistently meet industrial standards.