S-98264A250 0.344" ID x 3" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance through zinc plating, extending service life in demanding industrial environments
• Optimal load distribution with large 3" outer diameter, preventing surface damage and joint loosening
• Precision fit for 5/16" screws with 0.344" inner diameter, ensuring secure fastening and alignment
• Versatile thickness range (0.051-0.080") accommodates various assembly requirements and compression needs
• Heavy-duty steel construction provides reliable strength and durability for mechanical applications
• Compliance with international standards including RoHS 3 and REACH, ensuring safe and regulated use
• Inch system compatibility for seamless integration with North American equipment and specifications

Professional Applications & Engineering Value

This zinc-plated steel flat washer delivers critical engineering solutions for industrial assembly challenges. The 3" OD creates an expanded bearing surface that effectively distributes clamping force, preventing material deformation and bolt loosening under vibration or dynamic loads. The zinc plating provides a protective barrier against moisture, chemicals, and environmental exposure, making these flat washers ideal for outdoor equipment, machinery, and construction applications where corrosion resistance is essential. With precise 5/16" screw size compatibility and standardized inch dimensions, these washers ensure reliable performance in automotive, manufacturing, and structural fastening systems where consistent load distribution and long-term reliability are paramount.

Specification Summary & Compliance

Manufactured to standard inch system specifications with 3" outer diameter, 0.344" inner diameter, and thickness range of 0.051-0.080". Designed specifically for use with 5/16" screw sizes. This flat washer is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for industrial applications worldwide. The zinc-plated steel construction meets industry standards for corrosion protection and mechanical performance in demanding fastening environments.