S-98099A034 0.531" ID x 1.062" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from the black-oxide steel finish, extending service life in harsh environments
• Precise dimensional fit with 0.531" inner diameter and 1.062" outer diameter, ensuring reliable load distribution for 1/2" screws
• Enhanced durability with a thickness range of 0.168"–0.192", providing consistent performance under pressure
• Environmental compliance with RoHS 3 and REACH standards, meeting strict industrial safety regulations
• Broad industrial compatibility in inch measurement systems, simplifying procurement and replacement
• Cost-effective reliability through robust steel construction, reducing maintenance and downtime

Professional Applications & Engineering Value

This black-oxide steel flat washer is engineered to address common industrial challenges, such as fastener loosening and surface damage. The black-oxide coating provides a protective barrier against moisture and chemicals, making it ideal for applications in automotive, construction, and machinery where corrosion resistance is critical. With precise dimensions—0.531" ID and 1.062" OD—it ensures a snug fit for 1/2" screw size, distributing loads evenly to prevent joint failure. Its robust design supports heavy-duty use, reducing wear and enhancing the longevity of assembled components in demanding environments.

Specification Summary & Compliance

This flat washer features an inner diameter of 0.531", outer diameter of 1.062", and thickness range of 0.168"–0.192", designed for use with 1/2" screw size in inch measurement systems. Manufactured from black-oxide steel, it complies with RoHS 3 (2015/863/EU) under exemption 6(a) for lead as an alloying element in steel and is REACH (EC 1907/2006) compliant, ensuring adherence to environmental and safety standards for industrial applications.