S-98029A057 0.906" ID x 2.125" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to the black-oxide steel finish, extending service life in demanding environments
• Precise dimensional fit with 0.906" ID and 2.125" OD, ensuring reliable performance for 7/8" screw applications
• Enhanced load distribution from the robust 0.293-0.318" thickness, reducing surface stress and preventing joint failure
• Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safe and sustainable use
• Heavy-duty construction ideal for industrial and construction settings, providing dependable support under high stress
• Broad compatibility with inch-system fasteners, simplifying sourcing and assembly in various projects

Professional Applications & Engineering Value

This black-oxide steel flat washer is engineered to address common industrial challenges such as corrosion-induced degradation and uneven load distribution. The black-oxide finish provides a durable barrier against moisture and chemicals, making it ideal for construction, machinery assembly, and outdoor applications where environmental exposure is a concern. Its precise dimensions—0.906" inner diameter and 2.125" outer diameter—ensure a snug fit for 7/8" screw size fasteners, minimizing loosening and enhancing joint integrity. By distributing clamping force evenly, this washer helps prevent surface damage and extends the lifespan of connected components, offering reliable performance in heavy-duty setups without compromising on compliance or durability.

Specification Summary & Compliance

This flat washer features inch-system dimensions with an ID of 0.906", OD of 2.125", and thickness ranging from 0.293" to 0.318", designed specifically for 7/8" screw applications. It adheres to standard SAE specifications for dimensional accuracy and is manufactured from black-oxide steel for consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead in steel alloys and REACH (EC 1907/2006) as of January 17, 2023, ensuring it meets stringent environmental and safety standards for industrial use.