DIN9250(VS) Carbon Steel Heavy-Duty Lock Washers – Double-Sided Toothed Anti-Loosening Washers

DIN9250(VS) Carbon Steel Heavy-Duty Lock Washers: Industrial Anti-Loosening Solutions

What Are DIN9250(VS) Carbon Steel Lock Washers?

DIN9250(VS) carbon steel heavy-duty lock washers are high-strength, double-sided toothed washers designed to prevent nuts and bolts from loosening under vibration, impact, or high-pressure conditions. Also called double-sided embossed lock washers or toothed safety disc washers, they are an improved upgrade of traditional disc spring washers.

With advanced Dacromet and Delta anti-corrosion coatings, DIN9250(VS) washers achieve over 1000 hours of salt spray resistance, making them suitable for demanding industrial environments.

Materials and Surface Treatments

• Main Materials: S60C, 35CrMo,      51CrV4, or other custom alloy steels.

• Surface Treatments:

• Spring steel hardening phosphating (black)

• Mechanical zinc plating

• Nickel plating

• Dacromet zinc-flake coating (flaky       zinc + chromium salt, sintered at 300°C)

• Specifications: M3, M3.5, M4, M5,      M6, M8, M10, M12, M14, M16, M18

The Dacromet coating provides excellent saltwater corrosion resistance, mechanical strength, wear resistance, and high-temperature durability, ensuring consistent performance even after repeated tightening.

Key Features of DIN9250(VS) Heavy-Duty Lock Washers

1. High Strength: Carbon steel      construction ensures excellent tensile strength and load-bearing      capacity.

2. Corrosion Resistance: Suitable for harsh      and corrosive environments, including marine, chemical, and industrial      settings.

3. High-Temperature Stability:      Maintains anti-loosening performance in extreme temperatures.

4. Easy Installation: Designed for fast      and secure installation without specialized tools.

5. Durable Surface Coating: Dacromet      and Delta coatings prevent surface degradation even after repeated bolt      tightening.

Industrial Applications

1. Mechanical Assemblies

Used where nut loosening must be prevented, such as automotive manufacturing, aerospace, and heavy machinery.

2. High-Temperature Environments

Suitable for equipment operating under thermal stress, including metallurgical and thermal power plants.

3. Vibration-Prone Equipment

Ideal for construction machinery, rail transport, and engineering equipment, where vibration could compromise bolt security.

4. Energy and Infrastructure

Applied in wind, solar, petrochemical, and shipbuilding industries for reliable bolted connections.

How to Select the Right DIN9250(VS) Lock Washer

1. Working Environment: Choose a      washer with adequate corrosion and high-temperature resistance.

2. Load Requirements: Ensure the      washer provides sufficient fastening force for the application.

3. Size and Type: Select the      appropriate diameter and thickness to match the nut and bolt      specifications.

Installation Guidelines

1. Clean Surface: Ensure the nut and      work surface are free of dust, dirt, or debris.

2. Correct Positioning: Place the      washer between the nut and the work surface, fully covering the      nut.

3. Proper Tightening: Tighten bolts      according to design specifications to ensure washer effectiveness.

4. Periodic Inspection: Regularly      check nuts and washers to maintain reliability under vibration and load.

Why Choose DIN9250(VS) Carbon Steel Heavy-Duty Lock Washers?

These anti-loosening washers are engineered to solve the common problem of nut loosening under vibration or impact, ensuring the safety and reliability of mechanical assemblies. With high strength, corrosion resistance, and advanced surface coatings, DIN9250(VS) washers are essential for modern industrial and high-performance applications.

 For high-quality DIN9250(VS) carbon steel lock washers, all types of spring washers, or technical support for structural design, contact us:

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