S-98099A030 0.344" ID x 0.75" OD Oversized Washers
Oversized 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 from the black-oxide steel finish, extending service life in demanding industrial environments.
- Precise dimensional fit with a 0.344" ID and 0.75" OD, ensuring reliable performance with 5/16" screws and preventing loosening.
- Optimal load distribution due to the robust 0.168-0.193" thickness, minimizing surface damage and stress on assembled components.
- Enhanced durability from the steel construction, providing long-term reliability for heavy-duty applications.
- Global compliance assurance, meeting RoHS 3 and REACH standards for safe and environmentally responsible use.
- Wide industrial compatibility as an inch-system flat washer, suitable for various machinery and equipment assemblies.
Professional Applications & Engineering Value
This black-oxide steel flat washer is engineered to address common industrial challenges such as corrosion-induced failure and component misalignment. The black-oxide finish provides a protective layer that significantly reduces rust and wear in humid or chemically exposed settings, making it ideal for outdoor equipment, automotive assemblies, and machinery. Its precise 0.344" ID and 0.75" OD ensure a snug fit with 5/16" screws, distributing loads evenly to prevent bolt loosening and surface indentation. By combining corrosion resistance with exact inch-system dimensions, this washer enhances the longevity and stability of critical connections, reducing maintenance needs and downtime in professional applications.
Specification Summary & Compliance
This flat washer adheres to standard inch-system dimensions, including an inner diameter of 0.344", outer diameter of 0.75", and thickness ranging from 0.168" to 0.193", designed specifically for use with 5/16" screws. It is manufactured from black-oxide steel for consistent performance and is fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead in steel alloys and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence in industrial supply chains.
