S-97416A123 0.344" ID x 0.688" OD ASME B18.21.1 SAE Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide steel finish, extending service life in demanding industrial environments
• Precise dimensional fit with 0.344" ID and 0.688" OD ensures perfect alignment with 5/16" fasteners
• Optimized load distribution through flat washer design, preventing surface damage and joint loosening
• Industry-standard compliance with ASME B18.21.1 specifications for guaranteed interchangeability
• Environmental regulation adherence with RoHS 3 and REACH compliance for global supply chain compatibility
• Versatile thickness range (0.051-0.080") accommodates various assembly requirements and compression needs
• Enhanced durability through steel construction, maintaining performance under repeated stress cycles

Professional Applications & Engineering Value

These SAE flat washers provide critical engineering solutions where load distribution and corrosion protection are paramount. The black-oxide steel construction offers superior rust resistance compared to untreated alternatives, making them ideal for automotive assemblies, machinery manufacturing, and outdoor equipment where environmental exposure is a concern. The precise 5/16" screw size compatibility ensures secure fastening in structural applications, while the ASME B18.21.1 compliance guarantees dimensional accuracy across replacement cycles. Engineers specify these industrial washers to prevent bolt head embedding, reduce friction-induced wear, and maintain clamping force integrity in heavy-duty applications where vibration and dynamic loads are present.

Specification Summary & Compliance

Manufactured to ASME B18.21.1 dimensional standards with inner diameter of 0.344", outer diameter of 0.688", and thickness range of 0.051-0.080". These inch system washers are designed specifically for 5/16" screw applications. The product fully complies with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations regarding chemical substances, ensuring environmental responsibility and global market acceptance.