S-90183A455 0.129" ID Square Washers for Blind Rivets

Key Features & Benefits at a Glance

• Superior corrosion resistance from zinc-plated steel construction, extending service life in humid or outdoor environments
• Precise 1/8" rivet compatibility with 0.129" inner diameter for secure, vibration-resistant fastening in mechanical assemblies
• Optimized load distribution through square 0.5" width design, preventing surface damage and maintaining joint integrity
• Consistent performance ensured by controlled 0.056-0.062" thickness range for uniform pressure application
• Environmental compliance meeting RoHS 3 and REACH standards for safe use in regulated industries
• Dimensional stability in inch system measurements for seamless integration with North American machinery and equipment
• Versatile industrial applicability across automotive, construction, and manufacturing sectors requiring reliable square washers

Professional Applications & Engineering Value

Engineered for demanding fastening scenarios, this zinc-plated steel square washer solves critical challenges in industrial assembly. The 0.5" width provides maximum surface contact to prevent embedding in soft materials and distribute loads effectively around 1/8" rivet connections. Unlike standard washers, the square configuration resists rotation during torque application, maintaining alignment in vibrating machinery. The zinc plating creates a sacrificial layer that actively fights corrosion, making these industrial washers ideal for outdoor equipment, automotive underbodies, and marine applications where moisture exposure compromises ordinary fasteners. With precise 0.129" ID tolerances, installers achieve snug fits that eliminate play in critical joints while the controlled 0.056-0.062" thickness ensures consistent clamping force across production runs.

Specification Summary & Compliance

This square washer maintains standard inch system dimensions including 0.129" inner diameter, 0.5" width, and 0.056-0.062" thickness range. Manufactured from zinc-plated steel for corrosion resistance, it's engineered specifically for 1/8" rivet diameter applications. The product fully complies with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations regarding chemical safety, meeting the latest 2023 SVHC requirements for industrial component manufacturing.