S-90481A246 0.344" ID x 1.625" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments.
• Precise dimensional fit with 0.344" ID and 1.625" OD, ensuring reliable load distribution and vibration resistance for 5/16" fasteners.
• Enhanced durability from a thickness range of 0.051-0.080", providing consistent performance under pressure.
• Compliance with global standards, including RoHS 3 and REACH, for safe use in regulated industries.
• Versatile inch-system compatibility, making it ideal for North American machinery and equipment assemblies.
• Cost-effective maintenance by reducing wear on connected components and minimizing replacement frequency.

Professional Applications & Engineering Value

This zinc-plated steel flat washer is engineered to address common industrial challenges such as galvanic corrosion, surface abrasion, and fastener loosening. The zinc plating offers a protective barrier against moisture and chemicals, making it suitable for outdoor equipment, automotive assemblies, and machinery exposed to humid conditions. With precise inch-system dimensions (0.344" ID x 1.625" OD), it ensures optimal load distribution for 5/16" screws, preventing joint failure and reducing maintenance downtime. Its robust design supports heavy-duty applications in construction, manufacturing, and electrical enclosures, providing long-term reliability and compliance with environmental regulations like RoHS and REACH.

Specification Summary & Compliance

This flat washer adheres to standard inch measurements with an inner diameter of 0.344", outer diameter of 1.625", and thickness ranging from 0.051" to 0.080", designed for compatibility with 5/16" screw sizes. It conforms to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for industrial use. Manufactured from zinc-plated steel, it meets general industry standards for corrosion resistance and mechanical performance in various assembly environments.