S-92164A031 0.384" ID x 0.694" OD ASME B18.21.1 External-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through external tooth design that bites into mating surfaces, preventing loosening under dynamic loads
• Excellent corrosion resistance from bronze construction, ideal for harsh industrial environments and marine applications
• Durable performance with Rockwell B60 hardness maintaining tooth integrity through repeated assembly cycles
• Precise dimensional compatibility with 3/8" fasteners (0.384" ID, 0.694" OD) ensuring proper fit and uniform load distribution
• Industry-standard compliance with ASME B18.21.1 specifications for reliable mechanical performance
• Environmental safety assurance through RoHS 3 and REACH compliance, suitable for regulated industries
• Optimized thickness range (0.032-0.040") providing consistent spring tension while accommodating surface variations

Professional Applications & Engineering Value

This bronze tooth lock washer delivers critical vibration-resistant performance in demanding industrial applications where fastener security is paramount. The external tooth design creates multiple biting points that dig into both the fastener head and bearing surface, effectively resisting rotational forces and maintaining clamp load in high-vibration environments. Made from bronze material, these washers offer natural corrosion resistance while maintaining the Rockwell B60 hardness needed to prevent tooth deformation during installation. Engineered specifically for 3/8" screw sizes with precise internal and external diameters, they provide reliable locking action in machinery, automotive assemblies, electrical equipment, and marine applications where vibration resistance and environmental durability are essential for operational safety and reduced maintenance intervals.

Specification Summary & Compliance

This bronze tooth lock washer features dimensional specifications of 0.384" ID, 0.694" OD, and thickness ranging 0.032-0.040" for optimal performance with 3/8" fasteners. Manufactured to ASME B18.21.1 standards for mechanical accuracy and functional reliability. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material traceability. The external tooth configuration provides maximum locking effectiveness while the bronze construction delivers consistent performance across temperature variations and corrosive conditions.