S-91525A478 0.406" ID x 2.5" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments thanks to premium 316 stainless steel construction
• Precise fit for 3/8" screws with a 0.406" inner diameter, ensuring secure fastening and load distribution
• Large 2.5" outer diameter provides an extensive bearing surface to protect materials from damage and prevent pull-through
• Ideal for heavy-duty applications with a thickness range of 0.050" to 0.080" for reliable performance under pressure
• Guaranteed material integrity with full compliance to RoHS 3 and REACH environmental and safety regulations
• Long-term durability and reliability in industrial settings, minimizing maintenance and replacement needs
• Broad compatibility with inch-system components, simplifying sourcing and assembly in various projects

Professional Applications & Engineering Value

Engineered for demanding environments, these 316 stainless steel flat washers deliver exceptional performance where corrosion resistance is critical. The inch-system design, featuring a 2.5" OD and 0.406" ID, is tailored for 3/8" screw applications, providing optimal load distribution and preventing surface damage in assemblies. This makes them ideal for industrial settings such as marine, chemical processing, and outdoor infrastructure, where exposure to moisture and chemicals is common. By utilizing 316 stainless steel, these washers address the engineering challenge of material degradation, ensuring long-term structural integrity and reducing lifecycle costs. Their robust construction supports heavy loads and vibration, offering a reliable solution for fastening systems that require durability and compliance with stringent industry standards.

Specification Summary & Compliance

This flat washer adheres to standard inch-system dimensions with an inner diameter of 0.406", outer diameter of 2.5", and thickness ranging from 0.050" to 0.080", designed specifically for 3/8" screw size applications. It is manufactured from 316 stainless steel to ensure consistent performance without a specified hardness rating. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for industrial use and environmental standards as of the latest updates.