S-92165A031 0.384" ID x 0.692" OD ASME B18.21.1 Internal-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance with internal tooth design that bites into mating surfaces to prevent loosening under dynamic loads
• Excellent corrosion resistance from bronze construction, ideal for harsh industrial environments and marine applications
• Consistent performance with Rockwell B60 hardness ensuring dimensional stability and reliable spring action
• Regulatory compliance assurance with RoHS 3 and REACH compliance for global market access and environmental safety
• Precision engineering meeting ASME B18.21.1 specifications for guaranteed interchangeability and quality
• Optimized for 3/8" fasteners with 0.384" ID and 0.692" OD providing perfect fit and maximum contact area
• Durable thin profile at 0.032-0.040" thickness allowing space-efficient installation without compromising strength

Professional Applications & Engineering Value

These bronze tooth lock washers deliver critical vibration-resistant fastening solutions for demanding industrial applications. The internal tooth configuration creates multiple biting points that dig into both the fastener and workpiece, effectively resisting rotational loosening caused by machinery vibrations, thermal cycling, and dynamic loads. The bronze material offers natural corrosion resistance while maintaining excellent electrical conductivity, making these washers ideal for electrical grounding applications, marine equipment, and chemical processing environments where stainless steel might cause galvanic corrosion. With Rockwell B60 hardness, these washers maintain their spring properties through repeated compression cycles, ensuring long-term reliability in heavy machinery, automotive assemblies, and industrial equipment where fastener security is non-negotiable.

Specification Summary & Compliance

This 3/8" bronze tooth lock washer features precise dimensional specifications with 0.384" internal diameter, 0.692" outer diameter, and 0.032-0.040" thickness range. Manufactured to ASME B18.21.1 standards for tooth lock washers, ensuring consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety requirements for industrial components. The internal tooth location provides optimal locking action for standard inch system fasteners in various industrial applications.