S-96659A107 0.344" ID x 0.688" OD ASME B18.21.1 SAE Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ensuring long-term reliability in harsh environments
• Precise dimensional fit with 0.344" ID and 0.688" OD for perfect alignment with 5/16" fasteners
• Enhanced load distribution through optimal thickness range (0.051-0.080") to prevent surface damage
• Industry-standard compliance with ASME B18.21.1 specifications for guaranteed interchangeability
• Environmental safety assurance with full RoHS 3 and REACH compliance for global manufacturing applications
• Consistent performance in SAE inch system applications requiring reliable flat washer solutions
• Versatile industrial suitability for machinery, equipment, and structural assemblies requiring corrosion-resistant components

Professional Applications & Engineering Value

These 5/16" SAE flat washers provide critical engineering solutions where corrosion resistance and dimensional precision are paramount. The 18-8 stainless steel composition delivers exceptional durability against moisture, chemicals, and environmental exposure, making them ideal for industrial machinery, marine equipment, food processing systems, and outdoor structural applications. Their ASME B18.21.1 compliance ensures perfect compatibility with standard 5/16" fasteners, while the precisely controlled inner diameter (0.344") and outer diameter (0.688") prevent bolt slippage and distribute clamping forces evenly. This flat washer design effectively reduces surface pressure, protects sensitive materials from damage, and maintains joint integrity in high-vibration environments where reliable mechanical fastening is essential for operational safety and equipment longevity.

Specification Summary & Compliance

This SAE flat washer features precise dimensional specifications including 0.344" inner diameter, 0.688" outer diameter, and thickness ranging from 0.051" to 0.080" for consistent performance with 5/16" fasteners. Manufactured in compliance with ASME B18.21.1 standards for dimensional accuracy and mechanical properties. The washers are fully compliant with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) requirements (updated 06/14/2023, 235 SVHC), ensuring environmental safety and regulatory acceptance for international industrial applications.