S-93925A423 8.4 mm ID x 15 mm OD DIN 6797 Internal-Tooth Lock Washers
Internal-Tooth Lock Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
Special Type Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance with internal teeth that bite into mating surfaces, preventing loosening under dynamic loads
- Enhanced corrosion protection from zinc plating, ensuring long-term reliability in industrial environments
- Precise M8 compatibility with 8.4mm internal diameter for perfect fit and optimal load distribution
- High hardness rating (Rockwell C42) maintains tooth integrity and locking performance under repeated stress
- Standardized dimensions per DIN 6797 ensure interchangeability and consistent performance in metric assemblies
- Regulatory compliance with RoHS 3 and REACH for safe use in global industrial supply chains
- Space-efficient design with 15mm OD and 0.7-0.9mm thickness for compact applications without compromising strength
Professional Applications & Engineering Value
Engineered for demanding industrial environments, these M8 tooth lock washers provide critical vibration resistance where conventional fasteners fail. The zinc-plated steel construction combats corrosion while the internal tooth design creates positive locking action by embedding into both the bolt head and workpiece surface. This DIN 6797 compliant solution prevents rotational loosening in machinery, automotive assemblies, and electrical enclosures subject to constant vibration or thermal cycling. The Rockwell C42 hardness ensures teeth maintain their bite through multiple installation cycles, delivering reliable secure fastening in high-cycle manufacturing and maintenance applications where downtime is unacceptable.
Specification Summary & Compliance
This tooth lock washer features precision dimensions: 8.4mm internal diameter for M8 screws, 15mm outer diameter, and 0.7-0.9mm thickness per DIN 6797 standards. Manufactured from zinc-plated steel with internal tooth location and Rockwell C42 hardness. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for hazardous substance restrictions.
