Advanced Countersunk Lock Washer Manufacturer, Supplier & Exporter

Countersunk Lock Washers are specialized locking washers designed to fit flush with countersunk screws and bolts, preventing loosening due to vibration. Commonly used in automotive, aerospace, and machinery applications, they are available in stainless steel, carbon steel, and alloy steel, conforming to DIN and ISO standards.
M3–M24
Diameter
1–20 mm
Length
DIN • ISO
Standards
SS • Carbon Steel • Alloy Steel
Materials

Overview

About Countersunk Lock Washer

The Countersunk Lock Washer is a specialized fastener component designed to provide secure fastening in applications where a flush surface finish is essential. Engineered to fit beneath countersunk screws, this washer enhances joint integrity by preventing loosening due to vibration or dynamic loads. Manufactured from high-grade materials such as stainless steel, carbon steel, or alloy steel, the Countersunk Lock Washer undergoes precise stamping and heat treatment processes to achieve optimal hardness and resilience. Its unique design features a conical shape with locking teeth or serrations that bite into the mating surfaces, ensuring a firm grip and resistance to rotation. This product is widely utilized in automotive, aerospace, electronics, and machinery assemblies where maintaining tightness and alignment is critical for safety and performance.

Performance-wise, the Countersunk Lock Washer offers excellent corrosion resistance and mechanical strength, making it suitable for both indoor and outdoor environments. Its ability to distribute load evenly across the countersunk screw head reduces stress concentrations, thereby extending the lifespan of the assembly. The washer’s compatibility with various screw sizes and materials allows for versatile application in precision equipment and heavy-duty industrial machinery. By incorporating the Countersunk Lock Washer, engineers can achieve reliable fastening solutions that minimize maintenance requirements and downtime. This fastener component stands out for its balance of durability, efficiency, and ease of installation, making it an indispensable element in high-performance fastening systems.

Countersunk Lock Washer Quick Specifications

Product Type Countersunk Lock Washer
Head Style Countersunk
Manufacturing Process Stamping and Heat Treatment
Thread Type Compatible with standard machine screw threads
Common Materials Carbon Steel, Stainless Steel, Alloy Steel
Available Sizes #4 to 1 inch diameter
Strength Features High resistance to loosening under vibration, enhanced locking capability
Typical Applications Securing countersunk screws in machinery, automotive, electronics, and aerospace assemblies
Surface Finishes Zinc Plated, Black Oxide, Passivated, Plain
Standards DIN 6797, ISO 10673
Customization Custom Sizes, Materials, Threads & Surface Finishes Available

Why Choose Countersunk Lock Washer for Secure Industrial Fastening

Our precision-engineered Countersunk Lock Washer delivers dependable grip, accurate fit, and reliable performance in demanding assemblies. As a trusted Manufacturer, Supplier, Exporter, and Stockist of Industrial Fasteners, we offer high quality production, strict quality control, custom sizes, bulk supply, competitive pricing, and worldwide shipping for OEM and EPC needs.

Flush Fit Design

Ensures a smooth, flush surface with countersunk screws for aesthetic and functional assembly.

Vibration Resistance

Prevents fastener loosening in dynamic and high-vibration environments, enhancing joint reliability.

Durable Materials

Available in stainless steel, carbon steel, and alloy steel for strength and corrosion resistance.

Precision Manufacturing

Produced with tight tolerances for consistent performance and fit across sizes.

Corrosion Resistance

Materials and finishes provide protection against rust and environmental degradation.

Versatile Applications

Suitable for automotive, aerospace, electronics, and general machinery fastening needs.

Material Options and Corrosion Resistance for Countersunk Lock Washer

Countersunk Lock Washers are commonly manufactured from stainless steel for corrosion resistance, carbon steel for cost-effective strength, and alloy steel for high-stress applications. These materials offer excellent durability, temperature tolerance, and resistance to wear, making them suitable for harsh industrial conditions.

Quality Requirements and Global Standards for Countersunk Lock Washer

Countersunk Lock Washers adhere to international standards such as DIN 6797 and ISO 10673, ensuring dimensional accuracy and performance consistency. These standards define material properties, dimensions, and testing methods critical for reliable fastening solutions in global markets.

Countersunk Lock Washer Dimensions, Technical Specifications & Material Details

Countersunk Lock Washer technical data includes standard dimensions, compatible screw sizes, material grades, hardness ranges, surface finishes, and relevant manufacturing standards for secure fastening in recessed assemblies. These specifications help engineers, contractors, procurement teams, fabricators, and designers verify fit, load distribution, installation compatibility, and long-term performance in mechanical and structural applications.

Technical Specifications

Product TypeCountersunk Lock Washer
Thread TypeCompatible with countersunk screws
Diameter RangeM3–M24
Length Range1–20 mm
Available MaterialsStainless Steel, Carbon Steel, Alloy Steel
Manufacturing StandardsDIN 6797, ISO 10673
Surface FinishPlain, Zinc Plated, Passivated

Dimensions

Diameter (mm)Outer Diameter (mm)Thickness (mm)
M36.40.5
M6121.0
M12242.0
M24483.5

Engineering Uses for Countersunk Lock Washer Manufacturer Supplier & Exporter

Countersunk Lock Washer Manufacturer Supplier & Exporter supports secure fastening in machinery, structural assemblies, automotive systems, railways, power generation equipment, and heavy engineering applications. These washers help maintain clamp load in countersunk joints, reducing loosening under vibration and dynamic stress. Their precision engineering, dimensional accuracy, corrosion resistance, and reliable load-bearing performance make them valuable for improving structural integrity and long service life.
In automotive manufacturing, countersunk lock washers secure body panels, interior components, and engine parts, preventing loosening from constant vibrations and ensuring safety and durability.
Used extensively in aerospace assemblies, these washers maintain fastener integrity under extreme vibration and temperature variations, critical for flight safety and performance.
Countersunk lock washers provide secure fastening in electronic enclosures and devices, ensuring components remain fixed without protruding fasteners that could interfere with assembly or operation.
In industrial machinery, these washers prevent loosening of countersunk fasteners in moving parts, enhancing equipment reliability and reducing maintenance needs.

Why Choose Countersunk Lock Washer for Secure Industrial Fastening

Our precision-engineered Countersunk Lock Washer delivers dependable grip, accurate fit, and reliable performance in demanding assemblies. As a trusted Manufacturer, Supplier, Exporter, and Stockist of Industrial Fasteners, we offer high quality production, strict quality control, custom sizes, bulk supply, competitive pricing, and worldwide shipping for OEM and EPC needs.

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Countersunk Lock Washer FAQs: Common Questions and Technical Guidance

Countersunk Lock Washer FAQs answer common questions about materials, sizes, applications, standards, surface finishes, installation methods, performance factors, and product selection. This section provides practical product information to help engineers and purchasing teams understand specifications, compatibility, and usage considerations for reliable fastening performance.
Countersunk lock washers are typically made from stainless steel, carbon steel, and alloy steel. Stainless steel offers excellent corrosion resistance, carbon steel provides cost-effective strength, and alloy steel is used for high-stress applications. Material choice depends on environmental conditions and mechanical requirements of the application.
Countersunk lock washers conform to standards such as DIN 6797 and ISO 10673. These standards specify dimensions, material properties, and performance criteria to ensure compatibility and reliability in fastening assemblies across various industries worldwide.
They are commonly used in automotive, aerospace, electronics, and machinery industries where vibration resistance and flush fastening are critical. Their design prevents loosening of countersunk screws, maintaining joint integrity and aesthetic appearance in high-vibration environments.
Selecting the correct size depends on the diameter of the countersunk screw or bolt and the thickness of the materials being fastened. It is important to match the washer’s inner diameter to the fastener size and ensure the outer diameter provides adequate load distribution for secure fastening.

Industrial Cities We Serve:

  • Ahmedabad
  • Aurangabad
  • Bengaluru
  • Chennai
  • Coimbatore
  • Faridabad
  • Gandhidham
  • Greater Noida
  • Gurugram
  • Hazira
  • Hosur
  • Hyderabad
  • Jamnagar
  • Jamshedpur
  • Ludhiana
  • Mumbai
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  • Nagpur
  • Nashik
  • Navi Mumbai
  • Noida
  • Pune
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Countries We Export To:

  • US
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