S-92165A032 0.448" ID x 0.789" OD ASME B18.21.1 Internal-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance from the internal tooth design that bites into mating surfaces, preventing loosening under dynamic loads
• Excellent corrosion resistance and durability provided by high-quality bronze material, ideal for harsh industrial environments
• Precise dimensional control with 0.448" ID and 0.789" OD ensuring perfect fit for 7/16" fasteners and reliable performance
• Enhanced mechanical strength with Rockwell B60 hardness that maintains tooth integrity under high clamping pressures
• Industry-standard compliance with ASME B18.21.1 specifications guaranteeing consistent quality and interchangeability
• Environmental responsibility through RoHS 3 and REACH compliance, meeting strict international regulatory standards
• Optimized thickness range (0.032-0.040") providing flexibility while maintaining consistent locking performance

Professional Applications & Engineering Value

These bronze tooth lock washers deliver critical engineering solutions where vibration-induced fastener failure poses significant operational risks. The internal tooth location creates multiple biting points that dig into both the fastener head and mounting surface, creating superior resistance to rotational loosening in high-vibration machinery, automotive assemblies, and marine equipment. The bronze material offers natural corrosion resistance while maintaining excellent electrical conductivity, making these washers ideal for electrical grounding applications and corrosive environments where steel washers would deteriorate. With Rockwell B60 hardness, these washers maintain their tooth profile integrity even after multiple installation cycles, providing reliable vibration-resistant performance in heavy-duty industrial applications where maintenance downtime must be minimized.

Specification Summary & Compliance

This bronze tooth lock washer features precise inch system dimensions including 0.448" internal diameter, 0.789" outer diameter, and thickness ranging from 0.032" to 0.040" for 7/16" screw applications. Manufactured to ASME B18.21.1 specifications for dimensional accuracy and performance requirements. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for international industrial markets.