S-95584A316 0.195" ID x 0.41" OD ASME B18.21.1 External-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance with external teeth that bite into mating surfaces to prevent loosening under dynamic loads
• Exceptional corrosion resistance through Black Oxide coated 18-8 Stainless Steel construction for harsh industrial environments
• Optimized dimensional stability with precise 0.195" ID and 0.41" OD ensuring perfect fit for No. 10 screws
• Enhanced mechanical durability from Rockwell B88 hardness rating providing long-term performance under high stress
• Industry-standard compliance with ASME B18.21.1 specifications guaranteeing consistent quality and reliability
• Environmental responsibility through full RoHS 3 and REACH compliance for sustainable manufacturing operations
• Reliable locking performance with external tooth configuration that maintains secure fastening in high-vibration applications

Professional Applications & Engineering Value

This external tooth lock washer delivers critical vibration-resistant performance for demanding industrial applications where fastener security is paramount. The Black Oxide 18-8 Stainless Steel construction provides superior corrosion resistance in harsh environments, while the precisely engineered external teeth create multiple biting points that dig into both the fastener and mating surface. This design prevents rotational loosening and maintains clamping force in high-vibration machinery, automotive assemblies, and heavy equipment. The combination of Rockwell B88 hardness and standardized dimensions ensures consistent performance across production runs, making it ideal for manufacturing environments requiring reliable, repeatable fastening solutions that withstand dynamic loads and environmental challenges.

Specification Summary & Compliance

Manufactured to exacting ASME B18.21.1 standards with dimensional specifications including 0.195" internal diameter, 0.41" outer diameter, and thickness ranging 0.018-0.024" for No. 10 screw applications. The washer features external tooth configuration and meets comprehensive compliance requirements including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial markets with strict chemical substance restrictions.