S-90313A231 0.25" ID x 1.25" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel material, ideal for humid or chemically aggressive environments.
• Excellent load distribution with a 1.25" outer diameter, protecting surfaces and preventing fastener embedment.
• Precise fit for No. 12 screws with a 0.25" inner diameter, ensuring secure and stable assembly.
• Durable construction with a thickness range of 0.050-0.080", providing reliable long-term performance.
• Compliance with strict environmental standards, being RoHS 3 and REACH compliant for safe industrial use.
• Broad industrial compatibility using the inch system of measurement for seamless integration with standard components.
• Versatile application range due to its flat washer design, suitable for various mechanical and structural fastening needs.

Professional Applications & Engineering Value

This 18-8 Stainless Steel Flat Washer is engineered to address common industrial challenges such as corrosion-induced failure and surface damage. Its corrosion-resistant properties make it ideal for outdoor equipment, marine applications, and chemical processing plants where moisture and harsh substances are prevalent. The precise 0.25" ID ensures a snug fit on No. 12 screws, reducing vibration loosening and maintaining assembly integrity. With a 1.25" OD, it effectively distributes clamping force, preventing damage to soft materials and extending the lifespan of connected components. This flat washer is a reliable choice for engineers seeking durable, inch-system hardware that meets rigorous performance and environmental compliance standards in demanding settings.

Specification Summary & Compliance

This washer features an inner diameter of 0.25", outer diameter of 1.25", and thickness of 0.050-0.080", designed specifically for No. 12 screw sizes in the inch system. It is manufactured from 18-8 Stainless Steel for consistent quality and performance. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for industrial and environmental use.