S-98049A121 1.281" ID x 2.5" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 17-4 PH Stainless Steel, ideal for harsh industrial environments
• Exceptional mechanical strength with Rockwell C40 hardness, providing reliable load distribution and resistance to deformation
• Precision dimensional fit with 1.281" ID and 2.5" OD, ensuring perfect alignment for 1 1/4" screw applications
• Enhanced durability and longevity due to high-strength material and controlled thickness (0.265-0.290")
• Compliance with strict environmental standards including RoHS 3 and REACH, ensuring safe and sustainable use
• Versatile inch system compatibility, making it suitable for a wide range of industrial equipment and machinery
• Reliable performance in heavy-duty applications, reducing maintenance needs and replacement frequency

Professional Applications & Engineering Value

This high-strength flat washer is engineered from 17-4 PH Stainless Steel to address critical challenges in demanding industrial settings. Its corrosion-resistant properties make it ideal for applications exposed to moisture, chemicals, or extreme temperatures, such as in chemical processing, marine equipment, and outdoor machinery. The Rockwell C40 hardness ensures the washer maintains its shape under high clamping forces, preventing loosening and distributing load evenly to protect connected components. With precise 1.281" ID and 2.5" OD dimensions, it provides a secure fit for 1 1/4" screw assemblies, reducing vibration and wear in heavy-duty systems like structural frameworks, automotive assemblies, and industrial machinery. This combination of material strength and dimensional accuracy delivers long-term reliability, minimizing downtime and maintenance costs.

Specification Summary & Compliance

This flat washer features an inner diameter of 1.281", outer diameter of 2.5", and thickness ranging from 0.265" to 0.290", designed for use with 1 1/4" screws in inch-based systems. Manufactured from 17-4 PH Stainless Steel with a Rockwell C40 hardness, it meets high mechanical and durability standards. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for industrial applications.