S-98049A115 0.406" ID x 1" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 17-4 PH stainless steel construction, ideal for harsh environments and extending service life.
• Exceptional mechanical strength and durability with a Rockwell C40 hardness rating, preventing deformation under high loads.
• Precise dimensional fit with a 0.406" ID and 1" OD, ensuring secure seating and optimal load distribution for 3/8" screws.
• Reliable performance in demanding applications due to consistent thickness (0.170-0.190") and robust material properties.
• Compliance with major environmental regulations, including RoHS 3 and REACH, for safe and responsible use in global markets.
• Heavy-duty capability from the inch system design, providing a dependable solution for industrial machinery and equipment.

Professional Applications & Engineering Value

This 17-4 PH stainless steel flat washer is engineered to address critical challenges in industrial settings, such as vibration loosening, surface damage, and corrosion-induced failure. Its high-strength material and precise dimensions (0.406" ID x 1" OD) ensure a perfect fit for 3/8" screw size applications, distributing clamp load effectively to prevent joint fatigue. The Rockwell C40 hardness provides excellent wear resistance, making it suitable for heavy machinery, automotive assemblies, and marine equipment where durability is paramount. By utilizing corrosion-resistant stainless steel, it minimizes maintenance needs and extends the lifecycle of components in aggressive environments, offering long-term reliability and cost savings for engineers and procurement specialists.

Specification Summary & Compliance

This flat washer adheres to inch system measurements with an inner diameter of 0.406", outer diameter of 1", and thickness ranging from 0.170" to 0.190", designed specifically for use with 3/8" screws. It meets standard dimensional tolerances for precise fit and function. The product is manufactured from 17-4 PH stainless steel and achieves a hardness of Rockwell C40. It 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 use.