S-93413A318 0.813" ID x 2" OD ASME B18.21.1 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 load distribution with 2" outer diameter to prevent surface damage and joint loosening under heavy loads
- Superior corrosion resistance through black protective coating for extended service life in harsh environments
- Guarded mechanical integrity with Rockwell C38 hardness to maintain shape under extreme pressure
- Reliable Grade 8 performance ensuring consistent strength for critical industrial applications
- Precise 3/4" inner diameter for perfect fit with corresponding screw sizes and secure fastening
- Optimized thickness range (0.170-0.195") providing ideal compression and vibration resistance
- Full regulatory compliance meeting both industry standards and environmental regulations
Professional Applications & Engineering Value
Engineered for demanding industrial environments, these Grade 8 USS flat washers deliver exceptional performance where failure is not an option. The black corrosion-resistant coated steel construction provides crucial protection against rust and chemical degradation in outdoor, marine, and chemical processing applications. With Rockwell C38 hardness and ASME B18.21.1 compliance, these washers maintain structural integrity under extreme vibration and heavy load conditions common in construction equipment, heavy machinery, and structural steel connections. The precise 3/4" ID x 2" OD dimensions ensure optimal load distribution while preventing bolt head or nut embedding into connected materials, significantly extending the service life of your assemblies.
Specification Summary & Compliance
This USS flat washer features inch system dimensions with 0.813" ID, 2" OD, and thickness range of 0.170-0.195" designed for 3/4" screw sizes. Manufactured to ASME B18.21.1 standards with Grade 8 strength classification and Rockwell C38 hardness. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and workplace safety standards are met for industrial procurement.
