S-98099A037 0.906" ID x 1.75" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to the black-oxide steel finish, extending service life in harsh environments
• Optimal load distribution with a large 1.75" outer diameter, preventing surface damage and joint loosening
• Precise fit for 7/8" screws with a 0.906" inner diameter, ensuring secure fastening and alignment
• Durable construction from high-quality steel, providing reliable performance under heavy loads
• Enhanced stability with a substantial thickness range of 0.230-0.255", maintaining fastener integrity
• Compliance with environmental regulations, including RoHS 3 and REACH, for safe and responsible industrial use
• Versatile inch system compatibility, making it easy to integrate into existing assemblies and designs

Professional Applications & Engineering Value

This Black-Oxide Steel Flat Washer is engineered to address common industrial challenges such as corrosion-induced failure and uneven load stress. The black-oxide surface treatment provides a protective layer that significantly reduces rust and wear in humid or chemically aggressive settings, ideal for outdoor machinery, construction equipment, and automotive assemblies. Its precise 0.906" ID and 1.75" OD dimensions ensure a snug fit on 7/8" screws, distributing clamping force evenly to prevent material deformation and bolt fatigue. By maintaining consistent pressure across joints, this flat washer enhances the longevity and safety of heavy-duty applications, reducing maintenance needs and downtime in demanding operations.

Specification Summary & Compliance

This flat washer features an inner diameter of 0.906", outer diameter of 1.75", and thickness range of 0.230-0.255", designed for use with 7/8" screws in inch measurement systems. It is manufactured from black-oxide steel for durability and is 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 adherence to environmental and safety standards for industrial components.