S-98125A031 0.406" ID x 1" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in harsh or humid environments.
• Enhanced load distribution from the 1" outer diameter, reducing surface pressure and preventing damage to assembled materials.
• Precise fit for 3/8" screws with a 0.406" inner diameter, minimizing loosening and improving assembly accuracy.
• Exceptional mechanical strength thanks to Rockwell B83 hardness, offering resistance to deformation under high stress.
• Compliance with strict environmental standards, including RoHS 3 and REACH, for safe use in regulated industries.
• Durable and consistent performance with a thickness range of 0.168-0.193", ensuring reliable spacing and vibration resistance.
• Ideal for heavy-duty applications due to robust material properties, supporting industrial equipment and machinery assemblies.

Professional Applications & Engineering Value

This 18-8 stainless steel flat washer is engineered to address common industrial challenges, such as corrosion-induced failure and component loosening under dynamic loads. Its high corrosion resistance makes it suitable for outdoor, marine, or chemical-exposed settings, while the precise 0.406" ID and 1" OD ensure optimal load spreading for 3/8" screw applications. The Rockwell B83 hardness provides durability against wear and deformation, extending service life in heavy-duty washers used in machinery, construction, and automotive assemblies. By integrating RoHS and REACH compliance, it meets global regulatory demands, offering a reliable, industrial-grade solution that enhances assembly integrity and reduces maintenance costs.

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 0.168" to 0.193", designed for use with 3/8" screws. It conforms to standard dimensional tolerances for flat washers and is manufactured from 18-8 stainless steel with a Rockwell B83 hardness rating. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety standards for industrial applications.