S-90437A170 0.406" ID x 0.875" OD Adhesive-Back Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh chemical and marine environments.
• Reliable bonding and vibration resistance thanks to the 0.039" thick acrylic adhesive layer.
• Consistent performance under thermal stress with a temperature tolerance from 50°F to 200°F.
• Enhanced durability and load distribution provided by Rockwell B70 hardness and SAE flat washer design.
• Precise fit for 3/8" screws with 0.406" ID and 0.875" OD, ensuring secure fastening in inch-system applications.
• Compliance with global environmental standards, including RoHS 3 and REACH, for safe and sustainable use.
• Reduced maintenance and long service life due to high-quality material and adhesive integrity.

Professional Applications & Engineering Value

This 316 stainless steel SAE flat washer is engineered to address critical challenges in demanding industrial settings. The acrylic adhesive ensures a strong, permanent bond that resists loosening under vibration, making it perfect for automotive, machinery, and electronic assemblies. Its high corrosion resistance and ability to withstand temperatures up to 200°F make it suitable for outdoor, chemical processing, and marine applications where exposure to moisture and chemicals is common. By combining precise dimensions (0.406" ID and 0.875" OD) with a Rockwell B70 hardness, it provides reliable load distribution and prevents surface damage, enhancing the longevity of fastened components in inch-based systems.

Specification Summary & Compliance

This washer adheres to SAE standards with an ID of 0.406", OD of 0.875", and thickness of 0.039", designed for 3/8" screw sizes in the inch system. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and regulatory adherence for industrial use.