S-95795A006 0.142" ID x 0.506" OD ASME B18.21.1 Internal / External-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance with dual internal/external teeth design that bites into mating surfaces to prevent loosening under dynamic loads
• Enhanced corrosion protection through zinc-plated steel construction, extending service life in demanding industrial environments
• Consistent performance maintained by Rockwell C40 hardness, ensuring teeth maintain gripping capability through repeated assembly cycles
• Precise dimensional compatibility with No. 6 screws (0.142" ID, 0.506" OD) for reliable fit and optimal locking force distribution
• Industry-standard compliance with ASME B18.21.1 specifications, guaranteeing interchangeability and performance predictability
• Environmental regulation adherence through RoHS 3 and REACH compliance, ensuring safe use in regulated applications
• Optimized thickness range (0.023-0.027") providing sufficient spring action while maintaining space efficiency in compact assemblies

Professional Applications & Engineering Value

This internal/external tooth lock washer delivers exceptional engineering value by addressing critical vibration-induced fastener failure in industrial applications. The dual-tooth configuration creates multiple biting points that securely grip both the fastener head and mating surface, effectively resisting rotational forces in heavy machinery, automotive assemblies, and electrical enclosures. Manufactured from zinc-plated steel, the washer provides sacrificial corrosion protection while maintaining the structural integrity needed for high-stress environments. The specific No. 6 screw compatibility ensures precise application in standard inch-system fastening scenarios, while the controlled Rockwell C40 hardness balances durability with sufficient flexibility to maintain constant spring tension. This combination of features makes it particularly valuable for maintenance-critical applications where vibration resistance directly impacts operational safety and equipment longevity.

Specification Summary & Compliance

This tooth lock washer features precise dimensional specifications including 0.142" internal diameter, 0.506" outer diameter, and thickness ranging 0.023-0.027" for No. 6 screw applications. Manufactured to ASME B18.21.1 standards, it ensures consistent performance and interchangeability within inch measurement systems. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for use in regulated industries and international markets.