S-90437A120 0.125" ID x 0.312" OD Adhesive-Back Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments due to 316 stainless steel construction
• Secure component bonding with a 0.039" thick acrylic adhesive backing that prevents loosening under vibration
• Excellent load distribution for No. 6 screws with precise 0.125" ID and 0.312" OD dimensions
• Reliable performance at elevated temperatures, withstanding up to 200°F without degradation
• Enhanced mechanical durability provided by Rockwell B70 hardness for long service life
• Compliance with global environmental standards, including RoHS 3 and REACH, ensuring safe use in regulated industries
• SAE standard compatibility for seamless integration into existing inch-system assemblies

Professional Applications & Engineering Value

This 316 stainless steel SAE flat washer is engineered to address critical challenges in industrial settings where corrosion resistance and secure fastening are paramount. The acrylic adhesive backing provides a reliable bond that mitigates issues like vibration-induced loosening, common in machinery and automotive applications. Its ability to perform in temperatures up to 200°F makes it ideal for high-temperature environments, such as near engines or in chemical processing equipment. The precise inch-system dimensions and Rockwell B70 hardness ensure consistent performance under load, reducing maintenance needs and enhancing the longevity of assemblies using No. 6 screws.

Specification Summary & Compliance

This washer adheres to SAE standards with an inner diameter of 0.125", outer diameter of 0.312", and thickness of 0.031". It is manufactured to precise dimensional tolerances typical for inch-system components. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring it meets strict environmental and safety regulations for industrial use.