S-90452A104 Washers for Square-Neck Bolts
Washers for Square-Neck Bolts
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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
- Enhanced corrosion resistance through zinc-plated steel construction, extending service life in demanding industrial environments
- Secure square hole fit prevents rotation during installation, ensuring stable fastening for 1/4" screw applications
- Precise dimensional control with 0.68" OD and 0.32" inside width for consistent performance and compatibility
- Robust material strength from zinc-plated steel provides reliable load distribution and vibration resistance
- Global regulatory compliance with RoHS 3 and REACH standards, ensuring safe use in international supply chains
- Inch system compatibility simplifies sourcing and replacement in North American industrial applications
- Optimized thickness range (0.055-0.065") balances structural integrity with space constraints in assembly designs
Professional Applications & Engineering Value
This zinc-plated steel square hole washer delivers critical engineering solutions where standard round washers fail. The square hole design mechanically locks with square-neck bolts, eliminating spin-out during high-torque applications in machinery assembly, structural steel connections, and heavy equipment manufacturing. The zinc plating creates a sacrificial barrier against oxidation, making it ideal for environments with moisture exposure while maintaining electrical conductivity. With precise 0.68" OD dimensions and 1/4" screw compatibility, this washer provides reliable bearing surface distribution, preventing embedment in softer materials and reducing maintenance cycles in industrial fastening systems.
Specification Summary & Compliance
Manufactured to standard inch system tolerances with 0.68" outer diameter and 0.32" inside width square hole configuration. Constructed from zinc-plated steel for corrosion protection. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, containing no SVHC above threshold limits. Designed specifically for 1/4" screw applications with thickness maintained between 0.055-0.065" for consistent performance.
