S-90495A151 0.41" ID x 1.5" OD Oversized Washers

Key Features & Benefits at a Glance

• Exceptional Durability: Grade 8 classification and Rockwell C38 hardness ensure superior load distribution and resistance to deformation under high-stress conditions.
• Advanced Corrosion Protection: Zinc yellow-chromate plating provides a robust barrier against rust and environmental degradation, extending service life in harsh industrial settings.
• Precision Fit & Alignment: 0.41" ID and 1.5" OD dimensions guarantee accurate centering on 3/8" fasteners, reducing assembly errors and improving joint integrity.
• Heavy-Duty Performance: Designed for demanding applications, this washer maintains structural integrity and prevents loosening in high-vibration environments.
• Regulatory Compliance: Meets RoHS 3 and REACH standards, ensuring safe use in regulated industries without hazardous substance restrictions.
• Versatile Application Range: Suitable for various mechanical and structural assemblies where reliable fastening and corrosion resistance are critical.
• Consistent Thickness Control: 0.047-0.080" thickness range ensures uniform surface pressure and reliable performance across multiple installations.

Professional Applications & Engineering Value

This Grade 8 flat washer addresses critical engineering challenges in heavy machinery, construction, and automotive sectors where fastener failure can lead to costly downtime. The zinc yellow-chromate plated steel construction combats corrosion in exposed or humid environments, while the Rockwell C38 hardness prevents embedding and surface damage under extreme clamp loads. Its precise 3/8" screw size compatibility and flat profile ensure even load distribution across joint surfaces, reducing stress concentration points. Engineers specify this industrial washer for structural connections, equipment mounting, and high-vibration assemblies where corrosion resistance and mechanical strength are paramount for long-term reliability.

Specification Summary & Compliance

Manufactured to inch system standards with precise dimensional tolerances, this flat washer features a 0.41" inner diameter and 1.5" outer diameter with thickness ranging 0.047-0.080". The Grade 8 classification confirms high tensile strength requirements are met. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures adherence to environmental and safety standards for industrial components.