S-93413A316 0.625" ID x 1.5" OD ASME B18.21.1 Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with black corrosion-resistant coated steel construction, extending service life in harsh environments
• Exceptional load-bearing capacity from Grade 8 strength classification, ensuring reliable performance under high-stress conditions
• Precise dimensional fit with 0.625" ID and 1.5" OD, providing optimal surface distribution for 9/16" fasteners
• Enhanced surface durability with Rockwell C38 hardness, resisting deformation and maintaining structural integrity
• Industry-standard compliance with ASME B18.21.1 specifications, guaranteeing consistent quality and interchangeability
• Environmental regulatory adherence through RoHS 3 and REACH compliance, ensuring safe usage in regulated industries
• Optimized thickness range (0.156-0.188") for balanced strength and flexibility in demanding assembly applications

Professional Applications & Engineering Value

These Grade 8 USS flat washers deliver critical engineering solutions where corrosion resistance and high-strength performance are paramount. The black corrosion-resistant coated steel construction protects against environmental degradation in outdoor, marine, and chemical exposure scenarios, while the Rockwell C38 hardness ensures the washer maintains its shape under extreme clamping forces. Engineered to ASME B18.21.1 standards, these washers provide reliable load distribution for 9/16" screw size applications in heavy machinery, structural steel connections, and industrial equipment where vibration resistance and long-term fastener integrity are essential. The combination of material properties and dimensional precision addresses common failure points in industrial washers, reducing maintenance frequency and enhancing operational safety.

Specification Summary & Compliance

Manufactured to ASME B18.21.1 dimensional and mechanical requirements with precise inner diameter (0.625"), outer diameter (1.5"), and thickness (0.156-0.188") tolerances. The Grade 8 strength classification and Rockwell C38 hardness ensure consistent performance in high-stress applications. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms environmental safety and restricted substance adherence for global industrial use.