S-93852A102 0.312" ID x 0.75" OD USS Washers
USS Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and outdoor applications.
- Enhanced load distribution thanks to the USS flat design with 0.75" OD, reducing surface pressure and preventing material damage.
- Excellent mechanical strength from Rockwell B68 hardness, ensuring the washer maintains shape under high stress and vibration.
- Precise fit for 1/4" screws with 0.312" ID, providing secure fastening and minimizing loosening in assemblies.
- Long-term durability due to the material's inherent properties, offering reliable performance in industrial and marine settings.
- Compliance with environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries.
- Versatile inch system compatibility for seamless integration with standard USS fasteners in various equipment.
Professional Applications & Engineering Value
This USS flat washer in 18-8 stainless steel addresses common industrial challenges such as corrosion-induced failure and joint instability. Its robust Rockwell B68 hardness ensures it withstands repetitive loads and vibrations in machinery, automotive, and construction assemblies. The precise 0.312" ID and 0.75" OD dimensions provide optimal load distribution, preventing bolt head embedment and surface damage on soft materials. Ideal for corrosion-resistant applications like marine hardware or chemical processing equipment, this washer enhances assembly longevity while meeting strict RoHS and REACH compliance for global supply chains.
Specification Summary & Compliance
This washer adheres to USS standards in the inch system, with an inner diameter of 0.312", outer diameter of 0.75", and thickness range of 0.051-0.080" for precise fit with 1/4" screws. Manufactured from 18-8 stainless steel with a hardness of Rockwell B68, it ensures consistent performance. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant as of June 14, 2023, supporting environmentally responsible procurement.
