S-90452A102 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 with zinc-plated steel construction, extending service life in demanding environments
- Secure square hole fit prevents rotation during installation, ensuring stable fastening for No. 10 screws
- Precise dimensional control with 0.5" OD and 0.226" inside width for consistent performance in inch-system assemblies
- Optimized load distribution through controlled thickness (0.043-0.053"), reducing surface stress and material fatigue
- Environmental compliance assurance meeting RoHS 3 and REACH standards for safe global industrial use
- Broad hardware compatibility designed specifically for No. 10 screw applications across multiple industries
- Durable steel core provides reliable mechanical strength while maintaining cost-effectiveness
Professional Applications & Engineering Value
These zinc-plated steel square hole washers deliver critical engineering solutions where standard round washers fail. The square hole design mechanically locks against screw rotation during vibration-prone operations, eliminating loosening in automotive, machinery, and electrical enclosure applications. The zinc plating creates a sacrificial barrier against oxidation, particularly valuable in environments with moisture exposure while maintaining electrical conductivity. With precise 0.5" OD dimensions and 0.226" inside width, these washers provide exact fitment for No. 10 screw assemblies, ensuring uniform clamping force without compromising joint integrity. The controlled thickness range (0.043-0.053") accommodates minor surface variations while maintaining consistent preload characteristics.
Specification Summary & Compliance
This square hole washer features inch-system dimensions with 0.5" outer diameter, 0.226" inside width, and thickness ranging 0.043-0.053". Manufactured from zinc-plated steel and engineered specifically for No. 10 screw applications. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, including the latest SVHC requirements as of June 2023.
