S-92165A033 0.512" ID x 0.9" OD ASME B18.21.1 Internal-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance with internal teeth that bite into mating surfaces to prevent loosening under dynamic loads
• Excellent durability with Rockwell B60 bronze construction maintaining performance in demanding industrial environments
• Precise dimensional fit with 0.512" ID specifically engineered for 1/2" screw applications
• Reliable compliance meeting ASME B18.21.1 standards for consistent quality and performance
• Environmental safety assurance with full RoHS 3 and REACH compliance for regulated applications
• Optimal load distribution through 0.9" OD design that spreads pressure evenly across fastened surfaces
• Corrosion-resistant performance from bronze material ideal for harsh operating conditions

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 design creates positive locking action by embedding teeth into both the fastener and workpiece, effectively preventing rotational loosening caused by machinery vibration, thermal cycling, or dynamic loads. Manufactured from bronze material with Rockwell B60 hardness, these washers maintain their locking capability while providing excellent corrosion resistance in marine, chemical processing, and outdoor applications. The ASME B18.21.1 compliance ensures dimensional accuracy and performance reliability, making them ideal for assembly lines, heavy equipment, and precision machinery where consistent fastener performance is non-negotiable. The inch system measurements provide perfect compatibility with standard 1/2" fastening systems across various industrial sectors.

Specification Summary & Compliance

This bronze tooth lock washer features precise dimensional specifications including 0.512" internal diameter, 0.9" outer diameter, and thickness ranging from 0.037" to 0.045". Manufactured to ASME B18.21.1 standards for tooth lock washers, it ensures consistent performance and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental safety requirements for industrial components. The internal tooth configuration provides secure locking action while the bronze material with Rockwell B60 hardness delivers optimal mechanical properties for long-term reliability in vibration-prone applications.