S-92165A009 0.168" ID x 0.34" 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 corrosion resistance from bronze construction, ideal for harsh industrial environments and marine applications
• Optimized dimensional accuracy with 0.168" ID and 0.34" OD ensuring perfect fit for No. 8 screw applications
• Enhanced durability with Rockwell B60 hardness providing reliable performance in high-stress assemblies
• Industry-standard compliance meeting ASME B18.21.1 specifications for consistent quality and interchangeability
• Environmental responsibility with full RoHS 3 and REACH compliance, safe for regulated industries
• Precise thickness control (0.018-0.023") for uniform clamping force and secure fastening performance

Professional Applications & Engineering Value

These bronze tooth lock washers deliver critical vibration-resistant performance in demanding industrial applications where fastener security is paramount. The internal tooth design creates multiple biting points that dig into both the fastener and workpiece, effectively resisting rotational loosening caused by machinery vibration, thermal cycling, and dynamic loads. Made from bronze material, these washers offer natural corrosion resistance superior to steel alternatives, making them ideal for marine equipment, chemical processing systems, and outdoor infrastructure. The Rockwell B60 hardness ensures the teeth maintain their biting capability through repeated installation cycles without deformation. For No. 8 screw applications in electrical panels, pump assemblies, and precision machinery, these ASME B18.21.1 compliant washers provide engineered security that prevents costly downtime from fastener failure.

Specification Summary & Compliance

This internal tooth lock washer features precise inch system dimensions with 0.168" inner diameter and 0.34" outer diameter, manufactured to ASME B18.21.1 specifications for dimensional accuracy and performance reliability. The controlled thickness range of 0.018-0.023" ensures consistent clamping force in assembly applications. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, making it suitable for use in environmentally sensitive applications and global markets requiring strict material restrictions.