S-98449A505 0.102" ID x 0.232" 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 from 400 Series Stainless Steel construction for long-lasting performance in harsh environments
• Optimized dimensional precision with 0.102" ID and 0.232" OD ensuring perfect fit for No. 3 screws
• Enhanced durability with Rockwell C34 hardness providing excellent wear resistance and spring properties
• Industry-standard compliance meeting ASME B18.21.1 specifications for reliable performance in critical applications
• Environmental responsibility with full RoHS 3 and REACH compliance for safe use in regulated industries
• Consistent thickness control between 0.010-0.016" for uniform clamping force and reliable locking performance

Professional Applications & Engineering Value

This internal tooth lock washer delivers critical vibration-resistant fastening solutions for demanding industrial applications where No. 3 screws require secure, long-term performance. The 400 Series Stainless Steel construction provides excellent corrosion resistance for harsh environments including marine, chemical processing, and outdoor equipment. The precisely engineered internal tooth configuration creates multiple biting points that dig into both the screw head and mating surface, effectively preventing rotational loosening caused by vibration, thermal cycling, or dynamic loads. This design is particularly valuable in precision assemblies where maintaining torque and preventing fastener failure is critical to operational safety and equipment longevity. The combination of Rockwell C34 hardness and controlled thickness ensures consistent spring action and reliable locking force throughout the washer's service life.

Specification Summary & Compliance

This precision tooth lock washer features dimensional specifications of 0.102" internal diameter, 0.232" outer diameter, and thickness ranging from 0.010" to 0.016" for optimal performance with No. 3 screw size applications. Manufactured to exacting ASME B18.21.1 standards, the washer delivers consistent quality and reliable locking performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and safe usage across various industrial sectors.