Double side knurl lock(DIN9250)
Double side knurl lock washer, strictly manufactured according to DIN 9250. Made of high-strength steel, the double-sided knurling design generates friction by biting the contact surface to effectively prevent bolts and nuts from loosening. With compact structure and strong locking force, it is suitable for machinery, automotive, equipment installation and other scenarios in vibrating environments. After surface rust-proof treatment, it has good corrosion resistance. Multiple specifications are available to fit different bolt diameters, providing reliable anti-loosening protection for connected components and meeting the strict requirements of DIN standards for locking performance and durability.
Please find our advantages below.
- Have cooperated with a lot of importers in worldwide for several years.
- Experienced in doing business with big customers.
- All products are manufactured strictly according to DIN standards.
- From the drawing of engineers to the development of new molds, stamping, heat treatment, surface treatment and packaging are all done in-house by our factory. Delivery time and quality can be controlled, and the cost is also lower.
- Factory audited by Würth Group.
- Products have passed IATF16949.
- Strictly control the procurement of raw materials, raw materials in accordance with DIN EN 10132-4 standards, to ensure that 100% brand new material. The furnace number is traceable.
- Free samples could be provided












