S-98449A036 0.769" ID x 1.245" OD ASME B18.21.1 Internal-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance with internal tooth design that bites into mating surfaces to prevent loosening under extreme conditions
• Exceptional corrosion resistance thanks to 400 Series Stainless Steel construction for long-lasting performance in harsh environments
• Optimized dimensional precision with 0.769" ID and 1.245" OD ensuring perfect fit for 3/4" fasteners
• Enhanced mechanical strength with Rockwell C34 hardness providing reliable load distribution and spring action
• Industry-standard compliance meeting ASME B18.21.1 specifications for consistent quality and performance
• Environmental responsibility with RoHS 3 and REACH compliance for safe use across regulated industries
• Consistent thickness control between 0.047-0.055" for uniform clamping force and reliable torque retention

Professional Applications & Engineering Value

This heavy-duty tooth lock washer addresses critical vibration-induced loosening challenges in industrial machinery, automotive assemblies, and structural applications. The internal tooth design creates multiple biting points that dig into both the fastener head and base material, creating mechanical interference that resists rotational movement. Manufactured from 400 Series Stainless Steel, this washer maintains its anti-vibration properties while withstanding corrosive environments that would compromise ordinary carbon steel components. The combination of Rockwell C34 hardness and precise dimensional tolerances ensures consistent performance in high-stress applications where fastener security is paramount. Ideal for 3/4" screw installations in heavy equipment, transportation systems, and industrial manufacturing where reliability cannot be compromised.

Specification Summary & Compliance

This tooth lock washer features inch system dimensions with 0.769" internal diameter and 1.245" outer diameter, manufactured to ASME B18.21.1 standards for dimensional accuracy and performance. The component maintains thickness between 0.047-0.055" with internal tooth configuration for optimal fastening. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and restricted substance adherence for global industrial applications.