S-98370A013 0.281" ID x 0.5" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ideal for harsh industrial environments
• Enhanced load distribution with precise 0.281" ID and 0.5" OD, preventing surface damage and loosening
• Exceptional durability with Rockwell B83 hardness, maintaining structural integrity under heavy loads
• Reliable fit for 1/4" screws, ensuring secure fastening and vibration resistance in assemblies
• Regulatory compliance with RoHS 3 and REACH standards, meeting global environmental and safety requirements
• Consistent performance with thickness range of 0.064-0.083", providing uniform spacing and pressure distribution
• Long service life in inch-system applications, reducing maintenance frequency and replacement costs

Professional Applications & Engineering Value

This 18-8 stainless steel flat washer delivers critical engineering value by addressing common industrial challenges like corrosion-induced failure and uneven load distribution. Its precision dimensions (0.281" ID x 0.5" OD) ensure optimal alignment with 1/4" screw fasteners, minimizing stress concentrations in machinery, automotive, and construction assemblies. The material's inherent corrosion resistance prevents degradation in humid or chemical-exposed environments, while the Rockwell B83 hardness provides reliable performance under repetitive stress. Ideal for OEM and MRO applications, this washer extends equipment lifespan and reduces downtime, making it a cost-effective solution for heavy-duty flat washer requirements across various sectors.

Specification Summary & Compliance

This flat washer features inch-system dimensions with an inner diameter of 0.281", outer diameter of 0.5", and thickness ranging from 0.064" to 0.083", engineered for precise fit with 1/4" screws. Manufactured from 18-8 stainless steel with a hardness rating of Rockwell B83, it ensures consistent mechanical properties. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to restricted substance guidelines and environmental safety standards for industrial use.