S-98025A030 0.344" ID x 0.688" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion protection with zinc yellow-chromate plating that extends service life in harsh environments
• Exceptional load distribution thanks to precise 0.688" OD and 0.344" ID dimensions that prevent surface damage
• High-strength performance with Grade 8 classification and Rockwell C43 hardness for demanding applications
• Reliable dimensional stability with controlled thickness (0.090-0.108") ensuring consistent clamping force
• Industry compliance assurance meeting RoHS 3 and REACH standards for safe industrial use
• Optimized for 5/16" fasteners providing perfect fit and vibration resistance in inch-system assemblies

Professional Applications & Engineering Value

This Grade 8 flat washer delivers critical engineering solutions where high-strength and corrosion resistance are paramount. The zinc yellow-chromate plated steel construction provides superior protection against rust and chemical exposure in industrial environments, while the Rockwell C43 hardness ensures maintained performance under extreme pressure. Ideal for heavy machinery, construction equipment, and automotive applications, these 5/16" washers prevent loosening and distribute loads effectively across inch-system assemblies. The precise 0.688" OD and 0.344" ID dimensions guarantee proper seating and surface coverage, solving common issues of fastener wear and joint failure in high-vibration settings.

Specification Summary & Compliance

Manufactured to exact inch system dimensions with 0.344" inner diameter, 0.688" outer diameter, and thickness range of 0.090-0.108". Features Grade 8 strength classification with Rockwell C43 hardness for maximum durability. Compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead as steel alloying element and REACH (EC 1907/2006) standards as of January 17, 2023, ensuring environmental and safety regulations are met for industrial applications.