S-98970A232 2" ID x 4" OD Oversized Washers
Oversized Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Exceptional corrosion resistance thanks to the hot-dipped galvanized steel coating, extending service life in harsh environments.
- Superior load distribution with a large 4" OD and 2" ID, preventing surface damage and fastener loosening under heavy loads.
- Reliable mechanical strength provided by Rockwell B40 hardness, ensuring the washer maintains its shape and function under pressure.
- Precision fit for 1 3/4" screws, guaranteeing secure fastening and optimal performance in your assembly.
- Heavy-duty construction with a thickness of 0.302-0.332", designed for demanding industrial applications.
- Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safe and responsible use in global markets.
Professional Applications & Engineering Value
This hot-dipped galvanized steel flat washer is engineered to solve critical challenges in industrial applications where corrosion and high stress are common. The robust inch-sized design, with a 2" ID and 4" OD, provides a wide bearing surface that effectively distributes load, preventing embedding into soft materials and reducing the risk of joint failure. The galvanized coating offers a sacrificial layer that fights rust and degradation, making it ideal for outdoor construction, marine environments, and heavy machinery. Its Rockwell B40 hardness ensures it can withstand repeated stress without deforming, providing long-term reliability in heavy-duty bolted connections. This combination of material and design delivers a durable, corrosion-resistant solution that maintains assembly integrity and reduces maintenance needs.
Specification Summary & Compliance
This flat washer conforms to standard inch dimensions with an Inside Diameter (ID) of 2", Outside Diameter (OD) of 4", and Thickness of 0.302-0.332", designed for use with a 1 3/4" screw size. The material is hot-dipped galvanized steel with a hardness of Rockwell B40. It is manufactured to be compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead in steel and is REACH (EC 1907/2006) compliant, adhering to the latest SVHC list as of 01/17/2023.
