S-98449A007 0.15" ID x 0.295" 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
• Exceptional corrosion resistance thanks to 400 Series Stainless Steel construction for long-term reliability in harsh environments
• Optimized mechanical performance with Rockwell C34 hardness providing excellent durability and spring tension retention
• Precision dimensional compatibility with 0.15" ID and 0.295" OD ensuring perfect fit for No. 6 screw applications
• Industry-standard compliance meeting ASME B18.21.1 specifications for consistent quality and performance
• Environmental regulation adherence with RoHS 3 and REACH compliance for safe use in regulated industries
• Reliable locking action through internal tooth design that maintains secure fastening in high-vibration applications

Professional Applications & Engineering Value

This internal tooth lock washer delivers critical vibration resistance in demanding industrial applications where fastener security is paramount. Engineered from 400 Series Stainless Steel, the washer provides excellent corrosion resistance while maintaining structural integrity in harsh environments. The precisely positioned internal teeth create multiple biting points that dig into both the screw head and mating surface, effectively preventing rotational loosening caused by machinery vibration, thermal cycling, or dynamic loads. Particularly suited for No. 6 screw applications in automotive assemblies, electrical enclosures, and industrial equipment, this washer maintains consistent clamping force through its Rockwell C34 hardness and controlled thickness variation (0.016-0.022"). The combination of material properties and geometric design ensures reliable performance in critical fastening joints where failure is not an option.

Specification Summary & Compliance

This precision tooth lock washer features dimensional specifications of 0.15" internal diameter, 0.295" outer diameter, and thickness ranging from 0.016" to 0.022" for optimal performance with No. 6 screw applications. Manufactured to ASME B18.21.1 standards, the washer ensures consistent quality and dimensional accuracy. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in environmentally conscious manufacturing operations and regulated industries.