S-95584A200 0.115" ID x 0.26" 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
• Excellent corrosion resistance from 18-8 stainless steel construction, ideal for harsh industrial environments
• Precision dimensional control with 0.115" ID and 0.26" OD ensuring perfect fit for No. 4 screw applications
• Industry-standard compliance with ASME B18.21.1 specifications for reliable mechanical performance
• Enhanced assembly security through consistent 0.012-0.018" thickness providing uniform locking pressure
• Environmental regulation compliance meeting RoHS 3 and REACH standards for global supply chain compatibility
• Optimized external tooth design for maximum surface contact and superior locking action

Professional Applications & Engineering Value

This external tooth lock washer delivers critical vibration-resistant performance in demanding mechanical assemblies where 18-8 stainless steel provides essential corrosion protection. The precisely engineered external tooth configuration creates multiple biting points that dig into both the fastener and workpiece, effectively resisting rotational forces and maintaining clamp load in high-vibration environments. Engineered to ASME B18.21.1 standards, these precision washers solve common industrial challenges of joint loosening in machinery, electrical enclosures, and automotive components. The combination of stainless steel construction and optimized tooth geometry ensures reliable performance in applications ranging from manufacturing equipment to outdoor installations where environmental factors threaten fastener integrity.

Specification Summary & Compliance

Manufactured to exacting dimensional standards with 0.115" internal diameter and 0.26" outer diameter specifically designed for No. 4 screw size applications. This external tooth lock washer conforms to ASME B18.21.1 mechanical specifications for tooth lock washers and demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The 18-8 stainless steel material provides consistent mechanical properties while the external tooth location ensures optimal locking performance in industrial fastener systems.