S-90377A211 0.812" ID x 1.5" 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
- Superior corrosion resistance from 18-8 stainless steel with black-oxide coating, ideal for harsh industrial environments
- Precise dimensional compatibility with 0.812" ID and 1.5" OD ensuring perfect fit for 3/4" screw applications
- Enhanced load distribution with 0.170-0.200" thickness range, reducing surface pressure and preventing material damage
- Long-term durability in demanding conditions thanks to stainless steel construction and protective surface treatment
- Regulatory compliance assurance with RoHS 3 and REACH standards for safe, environmentally responsible industrial use
- Reliable performance across various applications due to consistent inch-system manufacturing precision
Professional Applications & Engineering Value
These black-oxide 18-8 stainless steel flat washers deliver exceptional engineering value in corrosive or demanding industrial settings. The combination of stainless steel material and protective black-oxide surface treatment provides reliable corrosion resistance where moisture, chemicals, or outdoor exposure would compromise ordinary washers. With precise 0.812" ID dimensions engineered specifically for 3/4" screw applications, these washers ensure proper seating and optimal load distribution across mating surfaces. The generous 1.5" OD and controlled thickness range effectively prevent embedment, reduce stress concentration, and protect sensitive components in industrial machinery, structural assemblies, and heavy equipment applications where vibration and thermal cycling are common challenges.
Specification Summary & Compliance
This flat washer features inch-system dimensions with 0.812" inner diameter, 1.5" outer diameter, and 0.170-0.200" thickness range, manufactured to standard flat washer specifications for 3/4" screw size applications. The product maintains compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and restricted substance management according to current European directives.
