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DIN9250 S Stainless Steel Safety Lock Washers S-Light Type

DIN9250 lock washers (Double-Serrated Conical Safety Washers) are improved discspring washers. Their serrated surface provides anti-slip and locking performancein bolted joints. By increasing frictional resistance, they effectively preventloosening caused by vibration or dynamic loads, ensuring safe and reliablefastening. With mature technology and stable performance, they are widely usedacross various industrial applications.

s (Light series):M1.6-M36
Vs (Heavy Series):M5-M30
Standards: DlN 9250

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

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

How to Use & Applications

When using DlN9250 lock washers, the proper series should be selected accordingto the bolt strength grade: the S Light Series is recommended for bolts belowgrade 8.8, while the Vs Heavy Series should be used for bolts of grade 10.9 and above. During installation, the washer is placed under the nut or bolt head, and theserrations on the surface embed into the contact material, providing slip resistanceand anti-loosening performance to ensure reliable fastening.These washers are widely applied in industries with strict anti-looseningrequirements, including the automotive industry, railway and bridge construction,building engineering, agricultural machinery, textile machinery, machine tools,pneumatic drilling equipment, steel structures, and wind power equipment

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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.