Products

NFE25-511 Conical Knurled Spring Washers, Symbol CS

The NFE25-511 Conical Knurled Spring Washers (Symbol CS) are specially designedlock washers featuring a conical shape combined with knurled serrations. Theconical geometry provides elastic preload in bolted joints, while the knurledsurface enhances friction to effectively prevent loosening under vibration ordynamic loads. With combined elastic compensation and anti-slip lockingfunctions, these washers offer stable performance and are widely used in precisionassemblies and applications requiring high safety and reliability.

Size Range:M3-M20
Standards: NFE25-511

Available Materials: Carbon steel (65Mn), Stainless steel (SS304/SS316)

Options: Black oxide, Dacromet, Zinc plating (blue/white, yellow), Nickelplating, etc.

How to Use & Applications

How to Use: Always use in pairs. Place the washers with the wedge side facingeach other and the serrated sides against the joint material. When tightening,the serrations grip the surfaces while the cams create a wedge effect to lockthe joint.
Applications: Wind power equipment, railway systems, mining machinery,heavy-duty equipment, marine, construction machinery, and petrochemicalindustries where high vibration and heavy loads exist.

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Established in 2003, Ruiqin Standard Parts integrates R&D, Production and Export in the Industry of Washers & Fasteners, including Self-locking Washers, Belleville Washers, Serrated Washers and Retaining Rings for Automotive and Machinery Applications.