Strong Anti-Loosening Performance
The external serrated teeth create a mechanical grip between the washer and mating surfaces, increasing resistance against rotation caused by vibration and impact loads.
DIN 6798A Serrated Lock Washers with External Teeth
- Standard: DIN 6798A(Type A)
- Material: Stainless Steel
- Size: M2–M30 (depending on material and production capability)
- Surface Treatment: Plain, Zinc Plated
- Min Order: 5000pcs
- Sample: Free sample (after quote)
- Delivery time: 30 – 45 Days
Product Overview
Product Application
DIN 6798 A Serrated Lock Washer is an external toothed locking washer designed to prevent bolt and nut loosening caused by vibration or dynamic loads. The washer features serrated teeth on the outside diameter, which bite into the contact surfaces to increase friction and improve fastening reliability.
Manufactured from carbon steel, spring steel, stainless steel A2/A4, DIN 6798 A washers are widely used in machinery, electrical equipment, automotive assemblies, and industrial fastening applications where secure locking performance is required.
Draw
Specification
DIN 6798 A vs DIN 127 Spring Washer
DIN 6798 A Serrated Washer
- Uses external teeth for friction locking
- Better resistance against rotational loosening
- Suitable for electrical grounding applications
- Requires less axial space
DIN 127 Spring Washer
- Uses spring tension effect
- General-purpose vibration resistance
- Traditional locking method
- Less effective under severe vibration conditions
DIN 6798 A is often preferred where compact installation and stronger surface grip are required.
Product Advantages
Improved Electrical Contact
The sharp outer teeth penetrate oxide layers, paint coatings, and surface contaminants, making DIN 6798 A suitable for grounding and electrical connection applications.
Compact Locking Solution
Compared with traditional spring washers, the low-profile serrated design provides effective locking performance while requiring minimal installation space.
Common Questions
What is DIN 6798 A washer used for?
DIN 6798 A is an external toothed lock washer used to prevent bolts and screws from loosening under vibration and dynamic loads.
Is DIN 6798 A better than a spring washer?
For many vibration applications, DIN 6798 A provides better surface locking because its teeth create direct friction engagement with mating surfaces. However, selection depends on load conditions and application requirements.
Does DIN 6798 A replace DIN 127?
DIN 6798 A can replace DIN 127 in many applications where stronger anti-rotation locking is required, but engineering evaluation should be performed before replacement.
Can you provide OEM manufacturing?
Yes. We offer customized dimensions, hardness requirements, coatings, laser marking, packaging, and private-label solutions.
