S-92165A055 0.64" ID x 1.071" OD ASME B18.21.1 Internal-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through internal tooth design that bites into mating surfaces, preventing loosening under dynamic loads
• Exceptional durability with Rockwell B60 hardness bronze construction that withstands repeated tightening cycles without deformation
• Reliable performance in harsh environments thanks to bronze material's natural corrosion resistance and anti-galling properties
• Precise fit and consistent performance with 5/8" screw size compatibility and controlled thickness range (0.042-0.050")
• Guaranteed quality and interchangeability through strict adherence to ASME B18.21.1 manufacturing standards
• Safe for regulated industries with full compliance to RoHS 3 and REACH environmental directives
• Optimized load distribution with 1.071" outer diameter providing enhanced surface contact area

Professional Applications & Engineering Value

These bronze tooth lock washers deliver critical vibration resistance in demanding industrial applications where fastener security is paramount. The internal tooth configuration creates multiple biting points that dig into both the fastener and workpiece, maintaining clamp load in high-vibration environments like heavy machinery, power transmission systems, and automotive assemblies. The bronze material offers excellent corrosion resistance while preventing galling and seizing - particularly valuable in marine, chemical processing, and high-temperature applications. With Rockwell B60 hardness, these washers maintain their locking teeth integrity through repeated disassembly cycles, reducing maintenance costs and downtime. The inch system compatibility ensures seamless integration with existing 5/8" fastening systems across North American industrial equipment.

Specification Summary & Compliance

This internal tooth lock washer features precise dimensional specifications including 0.64" inner diameter, 1.071" outer diameter, and thickness ranging 0.042-0.050" to ensure proper compression and locking action. Manufactured in compliance with ASME B18.21.1 standards for tooth lock washers, guaranteeing consistent quality and performance. The product meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) regulations (updated June 2022, 224 SVHC), making it suitable for environmentally regulated industries and international markets.