S-90481A117 0.688" ID x 1.5" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion protection with galvanized steel construction for extended service life in harsh environments
• Optimal load distribution with 1.5" outer diameter to prevent surface damage and fastener loosening
• Precise 5/8" screw compatibility through 0.688" inner diameter for secure, vibration-resistant fastening
• Enhanced structural stability with 0.122-0.150" thickness range for heavy-duty industrial applications
• Global regulatory compliance meeting RoHS 3 and REACH standards for safe international sourcing
• Dimensional reliability in inch-system measurements ensuring interchangeability with existing assemblies
• Versatile industrial suitability for machinery, construction, and equipment requiring durable flat washers

Professional Applications & Engineering Value

This galvanized steel flat washer addresses critical engineering challenges in industrial fastening systems. The zinc coating provides exceptional corrosion resistance, significantly reducing maintenance frequency in humid or chemically aggressive environments. With its substantial 1.5" outer diameter, the washer effectively distributes clamping force over a wider surface area, preventing material deformation and maintaining joint integrity under heavy-duty loads. The precise 0.688" inner diameter ensures perfect alignment with 5/8" screw size applications, eliminating play and minimizing vibration-induced loosening in machinery, structural steel connections, and equipment assembly. The robust thickness range (0.122-0.150") delivers consistent performance where standard washers might fail, making it ideal for industrial washers applications requiring reliable, long-term fastening solutions.

Specification Summary & Compliance

Manufactured to standard inch-system dimensions with 0.688" inner diameter, 1.5" outer diameter, and 0.122-0.150" thickness range. This flat washer is engineered for compatibility with 5/8" screw sizes and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, including the latest SVHC updates. The galvanized steel construction ensures consistent performance while meeting international environmental and safety standards for industrial components.