S-98049A127 0.781" ID x 1.625" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 17-4 PH Stainless Steel material, ensuring long-term reliability in harsh industrial environments.
• Exceptional mechanical strength and durability with a Rockwell C40 hardness rating, providing excellent load distribution and resistance to deformation under high stress.
• Precision dimensional fit with a 0.781" ID and 1.625" OD, designed specifically for 3/4" screw sizes to ensure secure fastening and prevent loosening.
• Consistent performance and reliability due to controlled thickness (0.235-0.255"), maintaining uniform pressure distribution across the assembly.
• Compliance with major environmental regulations, including RoHS 3 and REACH, making it suitable for global supply chains and sensitive applications.
• Heavy-duty construction ideal for demanding applications where standard washers may fail, extending the service life of your assemblies.
• Versatile industrial applicability across various sectors, thanks to its robust material properties and inch system measurements.

Professional Applications & Engineering Value

This 17-4 PH Stainless Steel Flat Washer is engineered to address critical challenges in industrial fastening, such as corrosion, high load stress, and dimensional instability. Its precipitation-hardening stainless steel composition provides outstanding resistance to corrosive elements, making it ideal for applications in chemical processing, marine environments, and outdoor machinery. The precise 0.781" ID x 1.625" OD dimensions and Rockwell C40 hardness ensure that it effectively distributes clamping force, prevents bolt head or nut embedding, and maintains joint integrity under vibration and thermal cycling. By utilizing this heavy-duty flat washer, engineers can enhance assembly longevity, reduce maintenance frequency, and achieve reliable performance in 3/4" screw applications across construction, automotive, and heavy equipment industries.

Specification Summary & Compliance

This flat washer adheres to precision dimensional standards with an inner diameter of 0.781", outer diameter of 1.625", and thickness range of 0.235-0.255", designed for use with 3/4" screw sizes in the inch measurement system. It is manufactured from 17-4 PH Stainless Steel with a hardness of Rockwell C40, ensuring consistent mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and regulated industrial applications.