S-92217A258 1.188" ID x 3.25" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ideal for harsh environments and long-term outdoor or chemical exposure.
• Enhanced load distribution with a large 3.25" outer diameter, minimizing surface pressure and preventing material damage under heavy loads.
• Precise fit for 1 1/8" screws with a 1.188" inner diameter, ensuring secure fastening and reducing the risk of loosening or misalignment.
• Consistent performance and reliability backed by compliance with the ASME B18.21.1 standard for dimensional uniformity and quality.
• Environmental and safety compliance with RoHS 3 and REACH regulations, making them suitable for regulated industries and global supply chains.
• Durable construction with a thickness range of 0.146-0.174", providing robust support and resistance to deformation in demanding applications.
• Versatile inch-system sizing for seamless integration with existing equipment and standard industrial components.

Professional Applications & Engineering Value

These 18-8 stainless steel flat washers are engineered to address critical challenges in industrial settings, such as vibration-induced loosening, galvanic corrosion, and surface damage from high clamping forces. The corrosion-resistant material ensures longevity in applications exposed to moisture, chemicals, or extreme temperatures, reducing maintenance costs and downtime. With precise inch-system dimensions (1.188" ID, 3.25" OD), they provide optimal load distribution for 1 1/8" screw assemblies in machinery, structural frameworks, and heavy equipment. This design prevents bolt head embedding and distributes stress evenly, enhancing the integrity of industrial fastening systems while meeting rigorous ASME B18.21.1 standards for reliability in mechanical and construction applications.

Specification Summary & Compliance

This flat washer features an inner diameter of 1.188", outer diameter of 3.25", and thickness range of 0.146-0.174", manufactured to ASME B18.21.1 specifications for dimensional accuracy and performance. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for industrial use.