S-90437A160 0.327" ID x 0.75" OD Adhesive-Back Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments due to 316 stainless steel construction, ideal for marine, chemical, and outdoor industrial applications.
• Exceptional dimensional accuracy with a 0.327" ID and 0.75" OD, ensuring a perfect fit and reliable load distribution for 5/16" screws.
• Enhanced durability and surface protection with a Rockwell B70 hardness, resisting deformation under high-stress assembly conditions.
• Broad temperature tolerance from 50°F to 200°F, maintaining performance in varied thermal environments without degradation.
• Compliance with global safety standards, including RoHS 3 and REACH, ensuring safe use and environmental responsibility.
• SAE designation guarantees interchangeability and reliability in inch-system mechanical assemblies.
• Acrylic adhesive backing (0.039" thick) provides secure, vibration-resistant fastening, reducing the need for manual alignment.

Professional Applications & Engineering Value

This 316 stainless steel flat washer is engineered to address critical challenges in demanding industrial settings, such as corrosion from chemicals, moisture, and salt exposure. Its SAE designation and precise inch-system dimensions (0.327" ID, 0.75" OD) ensure compatibility with 5/16" screws, providing uniform load distribution and preventing joint loosening under vibration. The inclusion of an acrylic adhesive layer enhances assembly efficiency by securing the washer in place, reducing installation time and errors. Ideal for heavy-duty applications in construction, marine equipment, and chemical processing plants, this washer extends equipment lifespan by mitigating galvanic corrosion and mechanical stress, making it a cost-effective solution for long-term reliability.

Specification Summary & Compliance

This washer adheres to SAE standards with an ID of 0.327", OD of 0.75", and thickness of 0.039", ensuring precise fit for 5/16" screw sizes. It features a Rockwell B70 hardness for mechanical strength and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming the absence of hazardous substances. The operational temperature range is specified from 50°F to 200°F, supporting use in controlled thermal environments.