S-98049A530 0.406" ID x 0.875" OD Oversized Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from 17-4 PH Stainless Steel, ideal for harsh environments and extending service life
• Superior load distribution with a 0.875" outer diameter, minimizing surface stress and preventing material damage
• Precise fit for 3/8" screws with a 0.406" inner diameter, ensuring secure fastening and reducing assembly errors
• High mechanical strength and durability due to Rockwell C40 hardness, resisting deformation under heavy loads
• Reliable performance in demanding applications thanks to consistent thickness (0.105-0.130"), providing uniform clamping force
• Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries
• Long-term cost efficiency by reducing maintenance and replacement needs in industrial and engineering setups

Professional Applications & Engineering Value

This 17-4 PH Stainless Steel flat washer is engineered to address common industrial challenges such as corrosion, vibration loosening, and component failure. Its high-strength material and precise dimensions (0.406" ID x 0.875" OD) ensure optimal load distribution, preventing bolt head embedding and surface damage in heavy-duty applications like machinery, automotive assemblies, and structural frameworks. The Rockwell C40 hardness provides excellent resistance to wear and deformation, while the corrosion-resistant properties make it suitable for outdoor, marine, or chemical-exposed environments. By integrating this precision flat washer into your 3/8" screw fastening systems, you enhance joint integrity, reduce downtime, and achieve reliable performance in demanding engineering projects.

Specification Summary & Compliance

This flat washer adheres to inch system measurements with an inner diameter of 0.406", outer diameter of 0.875", and thickness ranging from 0.105" to 0.130", designed specifically for 3/8" screw size applications. It meets material and manufacturing standards for 17-4 PH Stainless Steel, ensuring consistent quality and performance. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and safe for industrial use.