S-98264A225 0.344" ID x 2.5" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from zinc-plated steel construction, extending service life in demanding environments
• Precise dimensional fit with 0.344" ID specifically engineered for secure 5/16" screw applications
• Optimal load distribution through large 2.5" OD design, preventing surface damage and joint loosening
• Consistent performance ensured by controlled 0.051-0.080" thickness range for reliable spacing and tension
• Environmental compliance meeting RoHS 3 and REACH standards for safe industrial and commercial use
• Durable steel core providing excellent strength and longevity under mechanical stress
• Versatile inch system compatibility for seamless integration with standard industrial equipment

Professional Applications & Engineering Value

These zinc-plated steel flat washers deliver critical engineering solutions where corrosion resistance and dimensional precision matter most. The zinc plating creates a protective barrier against moisture, chemicals, and environmental factors that typically degrade standard washers, making them ideal for outdoor equipment, manufacturing machinery, and automotive assemblies. With their specific 0.344" ID design for 5/16" screws, these washers prevent misalignment and ensure proper fastener seating, while the substantial 2.5" OD effectively distributes clamping force across wider surfaces. This combination addresses common industrial challenges including galvanic corrosion, joint failure, and surface deformation, providing reliable performance in mechanical systems, structural connections, and heavy-duty applications where vibration and load fluctuations occur.

Specification Summary & Compliance

This flat washer features precise inch-dimension specifications with 0.344" inner diameter, 2.5" outer diameter, and 0.051-0.080" thickness range for consistent performance. Manufactured from zinc-plated steel for durability, the product maintains dimensional accuracy suitable for standard 5/16" screw applications. Compliance includes RoHS 3 (2015/863/EU) for restricted substance management and REACH (EC 1907/2006) covering 224 SVHC substances as of June 2022, ensuring environmental responsibility and regulatory acceptance for industrial procurement.