S-98900A316 1.5" ID x 2.75" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ideal for harsh industrial environments and outdoor applications
• Exceptional load distribution with precise 1.5" ID and 2.75" OD dimensions, preventing surface damage and maintaining joint integrity
• Optimized hardness performance with Rockwell B83 rating, ensuring dimensional stability under heavy clamping forces
• Perfect compatibility with 1 3/8" screw sizes, providing reliable fastening solutions for industrial assemblies
• Environmental compliance assurance with RoHS 3 and REACH compliance, meeting global regulatory standards
• Durable material longevity offering excellent resistance to rust, chemicals, and temperature variations
• Standard inch system compatibility ensuring seamless integration with existing industrial equipment and specifications

Professional Applications & Engineering Value

This 18-8 stainless steel flat washer delivers critical engineering value in demanding applications where corrosion resistance and mechanical reliability are paramount. The precision dimensions (1.5" ID x 2.75" OD) ensure optimal load distribution across mating surfaces, preventing stress concentration and material deformation in heavy machinery, structural steel connections, and industrial equipment assemblies. The Rockwell B83 hardness maintains dimensional stability under extreme vibration and thermal cycling conditions, while the corrosion-resistant properties of 18-8 stainless steel make these industrial washers ideal for chemical processing plants, marine environments, and food processing facilities where moisture and aggressive substances would compromise ordinary fasteners. Engineered for 1 3/8" screw size compatibility, these washers provide reliable performance in critical bolted connections requiring consistent clamping force and long-term joint integrity.

Specification Summary & Compliance

This flat washer maintains precision dimensional tolerances with 1.5" inner diameter, 2.75" outer diameter, and thickness range of 0.235-0.265" for consistent performance. Manufactured from 18-8 stainless steel with Rockwell B83 hardness specification, it meets industry standards for inch system fasteners. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for global industrial applications.