S-90481A282 0.812" ID x 3.25" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in harsh environments
• Optimal load distribution due to large 3.25" outer diameter, minimizing surface damage and loosening
• Precise fit for 3/4" screws with 0.812" inner diameter, ensuring secure fastening and alignment
• Enhanced durability in heavy-duty applications with a thickness range of 0.108-0.160" for consistent performance
• Compliance with industrial safety standards including RoHS 3 and REACH, ensuring safe usage in regulated sectors
• Wide compatibility with inch-system components, simplifying inventory and assembly processes
• Reliable mechanical protection for equipment and structures, reducing maintenance needs

Professional Applications & Engineering Value

This heavy-duty flat washer is engineered to address common industrial challenges such as corrosion, vibration-induced loosening, and uneven load distribution. Made from zinc-plated steel, it provides excellent protection against rust and wear in outdoor, marine, or high-moisture environments. The precise 0.812" ID and 3.25" OD dimensions ensure a snug fit on 3/4" screws, distributing pressure evenly to prevent surface indentation and bolt fatigue. Ideal for construction, machinery assembly, and automotive applications, this flat washer enhances joint integrity, reduces maintenance costs, and supports long-term operational reliability in demanding settings.

Specification Summary & Compliance

This washer adheres to inch-system measurement standards with an inner diameter of 0.812", outer diameter of 3.25", and thickness ranging from 0.108" to 0.160". It is designed for use with 3/4" screw sizes and manufactured from zinc-plated steel for consistent performance. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets strict environmental and safety requirements for industrial applications.