Why Choose Our DIN 25201 self-locking washers ?

Need a washer that matches your exact application? Share your drawing, operating conditions, and expected quantity to start a technical review.

✅Reduced Risk of Vibration-Induced Loosening

Wedge-locking technology can help resist rotational loosening in properly designed joints exposed to vibration, cyclic loads, or mechanical movement.

✅Improved Equipment Reliability

Maintaining appropriate bolt preload helps support joint stability and may reduce maintenance associated with loose fasteners.

✅Flexible Material Selection

Choose from carbon steel, spring steel, stainless steel, or specialized alloy options according to the mechanical and environmental demands of your application.

✅Better Corrosion Protection

Select a suitable stainless steel grade or compatible surface treatment to address moisture, outdoor exposure, or more demanding corrosive conditions.

✅Customized Specifications

Define dimensions, materials, finishes, and packaging according to your equipment design and procurement requirements.

✅Efficient Industrial Sourcing

Consolidate your fastening requirements with a supplier that can review technical specifications, packaging needs, and bulk purchasing requirements together.

JUNIQ Precision Self Locking Washer

The following table provides a preliminary specification framework for Double-Fold Wedge Lock Washers. Actual dimensions, tolerances, material availability, and performance requirements must be confirmed against the selected design and approved drawing.

Where Double-Fold Self Lock Washers Are Used？

✅Industrial Machinery and Equipment

Suitable for evaluation in compatible bolted joints exposed to vibration, dynamic loads, and repeated mechanical movement.

✅Automotive and Transportation Equipment

Can be considered for specified fastening applications, subject to automotive requirements, joint validation, and applicable approvals.

✅Marine and Coastal Equipment

316 stainless steel may be considered for compatible applications where enhanced corrosion resistance is required.

✅Chemical Processing Equipment

Material selection should account for chemical composition, concentration, temperature, exposure duration, and the required mechanical properties.

                 

✅Power Generation and Energy Equipment

Suitable configurations can be evaluated for selected machinery and industrial equipment connections, depending on the loading and environmental conditions.

✅High-Temperature Industrial Systems

A286 alloy may be considered for specialized applications involving elevated temperatures and thermal cycling, subject to design and qualification requirements.

✅Agricultural and Mining Machinery

Compatible wedge-locking designs may help resist loosening in equipment exposed to vibration, shock, and demanding operating conditions.

✅Electrical and Industrial Enclosures

304 stainless steel or appropriately protected carbon steel may be considered for compatible fastening points, depending on moisture exposure and joint requirements.

✅Construction and Infrastructure Equipment

Can be evaluated for suitable mechanical assemblies and equipment connections where vibration resistance and secure fastening are important.

For safety-critical, regulated, or certified applications, the selected washer must meet the relevant industry specifications, qualification procedures, and engineering requirements.

How to Use and Install Serrated Lock Washers

Correct installation is essential to achieving the intended locking performance of Double-Fold Wedge Lock Washers.

Our Double Self Lock Washer

Step 1: Confirm Product Compatibility

Verify the bolt size, washer dimensions, material, surface finish, and joint design. Ensure that the selected locking mechanism is suitable for the mating components.

Step 2: Inspect the Contact Surfaces

Check that the mating surfaces are clean and suitable for the washer's serrated interfaces. Soft substrates, unsuitable coatings, or excessive surface irregularities may affect engagement.

Step 3: Install According to the Product Design

Position the washer according to the approved drawing and manufacturer's instructions. For paired wedge-locking assemblies, ensure that the cam surfaces face each other as specified.

Step 4: Apply the Required Tightening Torque

Use the torque or bolt-preload specification defined by the joint designer or equipment manufacturer. Do not assume one universal torque value for all sizes, materials, coatings, and operating conditions.

Step 5: Verify the Assembly

Confirm correct seating, fastener engagement, and compliance with the applicable installation procedure. Critical applications may require additional inspection or functional testing.

Step 6: Inspect During Maintenance

After disassembly, inspect for wear, deformation, corrosion, and damage. Reuse only when permitted by the manufacturer's instructions and the application specification.

Installation Reminder: Wedge lock washers support joint security but do not replace correct bolt selection, joint design, appropriate preload, or application-specific validation.

                       

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Tailored Fasteners Solutions

Specializing in custom fasteners, we provide customers with integrated fastener solutions ranging from demand analysis, product design and development, manufacturing to quality verification.

How are Our Double-fold Wedge Lock Washers Shipped?

We support packaging arrangements according to product size, order volume, labeling requirements, and destination.

Packaging and Shipping

Packaging Options:

• ✓Bulk packaging in suitable bags or cartons.

• ✓Inner bags with labeled outer cartons.

• ✓Size-separated packaging for easier warehouse management.

• ✓Labels showing agreed part numbers, dimensions, material, or batch information.

• ✓Palletized export packaging where appropriate.

• ✓Customized OEM packaging subject to confirmation.

Shipping Options:

Depending on order volume, destination, schedule, and logistics feasibility, shipping can be arranged through:

• ✓Express courier for suitable small shipments.

• ✓Air freight for time-sensitive orders.

• ✓Sea freight for suitable bulk shipments.

• ✓Other agreed transportation arrangements.

Information to Confirm Before Shipment

• ✓Final product specification and approved drawing.

• ✓Order quantity and packaging configuration.

• ✓Carton dimensions and gross/net weight, where applicable.

• ✓Labeling and traceability requirements.

• ✓Delivery address and requested shipping method.

• ✓Required shipping and inspection documentation.

Planning a bulk purchase? Share your estimated quantity, destination, and preferred delivery schedule to discuss suitable packaging and shipping arrangements.

Get Your Customized Quotation Today

Send us your drawings and purchasing requirements for a specification review. We can discuss product compatibility, material options, customization feasibility, packaging, and quotation details.