S-90126A224 0.344" ID x 0.688" OD SAE Washers

Key Features & Benefits at a Glance

• Exceptional load distribution with precise 0.688" OD and 0.344" ID dimensions to prevent surface damage and fastener loosening under high stress
• Superior corrosion resistance through zinc-plated steel construction, extending service life in harsh industrial environments
• Maximum mechanical strength with Grade 8 classification and Rockwell C38 hardness for heavy-duty applications requiring reliable performance
• Enhanced durability with controlled thickness (0.051-0.080") ensuring consistent compression and vibration resistance
• Industry-standard compatibility designed to SAE specifications for seamless integration with 5/16" fasteners in inch-system assemblies
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe, environmentally responsible manufacturing
• Optimized wear resistance through hardened steel material that maintains integrity under repeated loading cycles

Professional Applications & Engineering Value

These Grade 8 zinc-plated steel flat washers deliver critical engineering solutions for industrial applications where vibration resistance and load distribution are paramount. The SAE-standard design with precise 5/16" inner diameter ensures perfect compatibility with matching fasteners, while the zinc plating provides essential corrosion protection in manufacturing, construction, and heavy equipment environments. The Rockwell C38 hardness rating combined with Grade 8 strength classification makes these washers ideal for high-stress applications including structural assemblies, machinery mounting, and automotive systems where failure is not an option. The controlled thickness tolerance maintains consistent clamping force, preventing joint relaxation in dynamic loading conditions.

Specification Summary & Compliance

Manufactured to SAE standards with inch system dimensions: 0.344" ID, 0.688" OD, and 0.051-0.080" thickness range. Features Grade 8 strength classification and Rockwell C38 hardness for maximum mechanical performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and restricted substance adherence. Designed specifically for 5/16" screw size applications in industrial and construction settings.