External Sawtooth Lock Washer with Black Zinc

Our products are exported worldwide, enjoying a fantastic reputation amongst customers for wedge anchor, types of nuts, hollow rivets. As social citizens, we are not only the creators of social values, but also the bearers of social responsibilities. Relying on years of R&D experience and management concepts, our company continuously introduces and absorbs advanced production technology and efficient management abroad.

Shanghai Jinrui Norm Parts Supplies Co.,Ltd is one of the leading square washer manufacturers and suppliers in China, welcome to buy square washers, square lock washer, square plain washer, asme f436 square washer from our factory and company.

ASTM F436 standard Spring washer  covers the dimensional requirments of inch series Spring WASHER.The standard of ASTM F436 standard Spring washer  is ASTM F436   ,  

the Spring washer is widely used, mainly goes with bolt and screw.ASTM F436 is with high hardness mostly made from #45 steel and other alloy steel.   

We always adhere to the 'loyalty, responsibility, struggle, innovation' as the core value of the enterprise, to become a 'domestic first-class, internationally famous' External Sawtooth Lock Washer with Black Zinc manufacturer is our eternal goal. We follow the quality policy of 'quality first, dedicated service, and strive for excellence', and uphold the business philosophy of 'pragmatic innovation, continuous self-improvement, courage, integrity management, and people-oriented'. We are determined to establish our own brand and build an efficient team.