S-95795A111 3.2 mm ID x 12 mm OD Internal / External-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance with dual internal and external teeth that bite into mating surfaces to prevent loosening under dynamic loads
• Enhanced corrosion protection through zinc-plated steel construction for reliable performance in industrial environments
• Precision M3 compatibility with 3.2mm internal diameter ensuring perfect fit and consistent clamping force
• Optimized load distribution with 12mm outer diameter providing broader surface contact for improved joint integrity
• Durable mechanical performance from 1.4-1.7mm thickness steel construction maintaining locking action through repeated stress cycles
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial applications
• Dual-direction locking capability with teeth on both surfaces creating positive locking action regardless of installation orientation

Professional Applications & Engineering Value

This M3 tooth lock washer delivers critical vibration-resistant fastening for demanding industrial applications where mechanical stability is paramount. The zinc-plated steel construction provides essential corrosion resistance while the unique internal/external teeth configuration creates a multi-directional locking mechanism that effectively counters rotational forces and shock loads. Engineered specifically for M3 screw applications in automotive assemblies, machinery frames, and equipment manufacturing, this metric lock washer solves the common problem of fastener loosening in high-vibration environments. The dual-tooth design ensures positive engagement with both the screw head and mating surface, distributing clamping forces evenly while maintaining secure fastening through thermal cycles and mechanical stress, making it ideal for applications where maintenance access is limited and reliability is non-negotiable.

Specification Summary & Compliance

This metric tooth lock washer features precise dimensional specifications with 3.2mm internal diameter, 12mm outer diameter, and 1.4-1.7mm thickness range, engineered for M3 screw applications. Manufactured from zinc-plated steel with internal and external tooth configuration, the washer complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring suitability for global industrial markets and regulated applications where material compliance is mandatory.