S-98099A038 1.031" ID x 2" 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 with black-oxide steel construction, extending service life in humid or demanding industrial settings
- Precise dimensional fit with 1.031" ID and 2" OD, ensuring reliable alignment and load distribution for 1" screw applications
- Enhanced durability from 0.261-0.286" thickness, providing consistent performance under mechanical stress and vibration
- Compliance assurance with RoHS 3 and REACH standards, meeting global environmental regulations for industrial components
- Broad compatibility with inch-system fasteners, simplifying sourcing and assembly in North American manufacturing
- Optimized surface protection through black-oxide finish, reducing friction and preventing galling in high-torque applications
Professional Applications & Engineering Value
This black-oxide steel flat washer delivers critical engineering solutions where corrosion resistance and dimensional precision are paramount. The black-oxide surface treatment forms a protective layer that minimizes oxidation in environments exposed to moisture, chemicals, or temperature variations, addressing common failure points in machinery and structural assemblies. With its 1.031" ID engineered for exact 1" screw compatibility, it eliminates play and distributes clamping forces evenly across 2" OD surfaces—preventing joint loosening in vibrating equipment, heavy-duty construction, or automotive applications. The controlled 0.261-0.286" thickness ensures consistent compression without deformation, making it ideal for industrial washers usage in bolted connections requiring repeatable torque performance and long-term reliability.
Specification Summary & Compliance
Manufactured to inch-system standards with ID: 1.031", OD: 2", and thickness range: 0.261-0.286" for precise 1" screw size applications. The black-oxide steel construction complies with RoHS 3 (2015/863/EU) under exemption 6(a) for lead in steel alloys and full REACH (EC 1907/2006) adherence as of 01/17/2023, ensuring regulatory acceptance in international supply chains.
