China Wholesale Black Screw Factories - DIN 6798 A/J Serrated Lock Washers—With Internal/External Teeth – Yateng
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China Wholesale Black Screw Factories - DIN 6798 A/J Serrated Lock Washers—With Internal/External Teeth – Yateng Detail:
Product Description:
| Product name | Serrated Lock Washer |
| Size | M1.7-31 |
| Material | Steel/Stainless steel |
| Surface treatment | Zinc |
| Standard | DIN/ISO |
| Certificate | ISO 9001 |
| Sample | Free Samples |
The serrated washer is used for small parts to act as a spring. Its size is similar to the fastening screws of three-dimensional plate stamping parts used with it.
The serrated lock washer is used in conjunction with a nut to be mounted on a bolt, and its function is similar to a spring pad, which can play a role of locking and preventing loosening.Serrated lock washers are divided into internal serrated lock washers and external serrated lock washers.Although they are lock washers, they are still quite different.
Difference between internal serrated lock washers and external serrated lock washers
①Difference in appearance
Although the two gaskets have similar names, their shapes differ greatly.The internal serrated lock washer, as the name suggests, the washer has serrations inside, and the external serrated lock washer has serrations outside the washer.
② Functional differenceInternal toothed lock washers are used under the head of smaller screw heads. Internal toothed lock washers are mostly used in mechanical assemblies to fasten anti-vibration seals and are stable.



Product advantages:
- Precision Machining
☆ Measure and process using precision machine tools and measuring tools under strictly controlled environmental conditions.
- High-quality
☆ With long life, low heat generation, high hardness, high rigidity, low noise, high wear resistance and other characteristics.
- Cost-effective
☆ The use of high-quality carbon steel steel, after precision processing and forming, greatly improves the user experience.
Surface treatment:
- ZINC
☆ Electro-galvanizing is a traditional metal coating treatment technology that provides basic corrosion resistance to metal surfaces. The main advantages are good solderability and suitable contact resistance. Due to its good lubrication properties, cadmium plating is commonly used in aviation, aerospace, marine, and radio and electronic products. The plating layer protects the steel substrate from both mechanical and chemical protection, so its corrosion resistance is much better than zinc plating.
OUR PACKAGE:
1. 25 kg bags or 50kg bags.
2. bags with pallet.
3. 25 kg cartons or cartons with pallet.
4. Packing as customers’ request
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Our corporation puts emphasis about the administration, the introduction of talented staff, plus the construction of team building, attempting hard to improve the quality and liability consciousness of team members. Our organization successfully attained IS9001 Certification and European CE Certification of China Wholesale Black Screw Factories - DIN 6798 A/J Serrated Lock Washers—With Internal/External Teeth – Yateng , The product will supply to all over the world, such as: Spain, India, Atlanta, As an experienced factory we also accept customized order and make it same as your picture or sample specifying specification and customer design packing. The main goal of the company is to live a satisfactory memory to all the customers, and establish a long term win-win business relationship. For more information, please contact us. And It is our great pleasure if you like to have a personally meeting in our office.
With a positive attitude of "regard the market, regard the custom, regard the science", the company works actively to do research and development. Hope we have a future business relationships and achieving mutual success.




