S-90437A150 0.281" ID x 0.625" OD Adhesive-Back Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and outdoor applications.
• Reliable bonding and vibration resistance thanks to the integrated acrylic adhesive backing, ensuring secure placement and reducing loosening.
• Consistent performance under thermal stress, with a temperature range from 50°F to 200°F, maintaining integrity in varied operating conditions.
• Enhanced durability and load distribution from a Rockwell B70 hardness rating, preventing deformation under pressure.
• Precise fit for 1/4" screws with a 0.281" ID and 0.625" OD, ensuring easy installation and optimal function in SAE inch systems.
• Compliance with global environmental standards, including RoHS 3 and REACH, for safe and sustainable use in regulated industries.
• Uniform 0.039" thickness in both washer and adhesive layer, providing predictable spacing and reliable sealing.

Professional Applications & Engineering Value

This 316 stainless steel SAE flat washer is engineered to address common industrial challenges like corrosion, component slippage, and thermal degradation. The acrylic adhesive backing offers a robust solution for applications where traditional fastening methods are impractical, securely bonding the washer to surfaces to prevent misalignment and reduce maintenance in vibrating machinery. Its corrosion-resistant properties make it suitable for marine, chemical processing, and food industry equipment, while the high-temperature tolerance ensures reliability in automotive and HVAC systems. By combining precise SAE inch dimensions with a durable Rockwell B70 hardness, this washer delivers consistent performance, minimizing downtime and enhancing the longevity of assemblies.

Specification Summary & Compliance

This washer adheres to SAE flat washer standards with an ID of 0.281", OD of 0.625", and thickness of 0.039", designed for 1/4" screws in inch measurement systems. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free of hazardous substances. The material and adhesive specifications support reliable operation within a temperature range of 50°F to 200°F, backed by a Rockwell B70 hardness for consistent mechanical performance.