S-90377A198 0.5" ID x 1.125" 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
- Corrosion-resistant performance with Black-Oxide coated 18-8 Stainless Steel for extended service life in harsh environments
- Precise dimensional fit with 0.5" ID and 1.125" OD ensuring optimal load distribution for 7/16" screw applications
- Enhanced durability through controlled thickness range (0.110"-0.140") for consistent pressure distribution
- Environmental compliance meeting RoHS 3 and REACH standards for safe industrial use
- Reliable material properties from 18-8 Stainless Steel offering excellent strength and oxidation resistance
- Versatile industrial compatibility with standard inch measurements for broad hardware applications
Professional Applications & Engineering Value
This Black-Oxide 18-8 Stainless Steel flat washer delivers critical engineering solutions where corrosion resistance and precise dimensional tolerances are paramount. The 0.5" ID x 1.125" OD configuration provides optimal bearing surface for 7/16" screw applications, preventing fastener loosening and material embedment in demanding environments. The Black-Oxide surface treatment enhances both corrosion protection and aesthetic appeal while maintaining the inherent strength of 18-8 stainless steel. Ideal for industrial machinery, marine hardware, and outdoor infrastructure, this flat washer addresses common failure points in assembly systems where moisture, chemicals, or temperature variations compromise ordinary fasteners. The controlled 0.110"-0.140" thickness range ensures consistent clamping force distribution across various joint configurations.
Specification Summary & Compliance
Manufactured to standard inch system measurements with precise inner diameter (0.5") and outer diameter (1.125") dimensions. The flat washer features a thickness range of 0.110"-0.140" and is specifically engineered for 7/16" screw size applications. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures material safety and regulatory acceptance for industrial and commercial use.
