S-98029A052 0.656" ID x 1.5" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from the black-oxide steel finish, extending service life in harsh industrial environments
• Optimal load distribution with precise 0.656" ID and 1.5" OD dimensions, preventing surface damage and fastener loosening
• Wide thickness tolerance (0.198-0.233") ensures reliable performance under varying compression loads
• Perfect compatibility with 5/8" screw sizes, reducing installation errors and improving assembly efficiency
• Full environmental compliance with RoHS 3 and REACH standards, meeting strict industrial regulatory requirements
• Durable steel construction provides consistent performance in high-stress applications without deformation
• Inch system standardization ensures seamless integration with existing North American equipment and fastening systems

Professional Applications & Engineering Value

These black-oxide steel flat washers deliver critical engineering value by addressing common industrial fastening challenges. The corrosion-resistant surface treatment protects against moisture and chemical exposure in demanding environments like outdoor construction, manufacturing equipment, and automotive assemblies. With precise 0.656" ID x 1.5" OD dimensions specifically engineered for 5/8" screw sizes, these washers provide superior load distribution that prevents surface damage, reduces stress concentration, and maintains joint integrity under vibration and thermal cycling. The inch system compatibility ensures straightforward integration with North American industrial standards, while the robust steel construction withstands repeated loading without compromising performance.

Specification Summary & Compliance

This flat washer features precise dimensional specifications with 0.656" inner diameter, 1.5" outer diameter, and thickness ranging from 0.198" to 0.233". Manufactured from high-quality steel with black-oxide surface treatment, the product complies with RoHS 3 (2015/863/EU) standards under exemption 6(a) for lead as an alloying element in steel and is REACH (EC 1907/2006) compliant with the latest SVHC updates. Designed specifically for use with 5/8" fasteners in inch measurement systems, these washers meet industrial requirements for environmental compliance and reliable performance in technical applications.