S-90108A027 0.25" ID x 0.562" OD USS Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments
• Precise dimensional accuracy with 0.25" inner diameter and 0.562" outer diameter ensuring perfect fit for No. 10 screws
• USS standard compliance guarantees consistent performance and interchangeability in inch-based fastening systems
• Optimized load distribution through controlled thickness (0.036-0.065") to prevent surface damage and loosening
• Environmental responsibility with full RoHS 3 and REACH compliance for safe, sustainable manufacturing
• Versatile industrial application due to robust steel material and standardized sizing for reliable assembly operations

Professional Applications & Engineering Value

These zinc-plated steel flat washers deliver critical engineering solutions by addressing common fastening challenges in industrial settings. The USS standard design ensures uniform pressure distribution, preventing joint failure and material deformation under dynamic loads. Made from zinc-plated steel, they provide essential corrosion resistance in humid or chemically exposed environments, significantly reducing maintenance needs. The precise 0.25" ID and 0.562" OD dimensions, combined with controlled thickness, offer reliable seating for No. 10 screw applications in machinery, electrical enclosures, and structural assemblies. This makes them indispensable for industrial washers requirements where durability and regulatory compliance are paramount.

Specification Summary & Compliance

This flat washer adheres to USS standard inch measurements with inner diameter of 0.25", outer diameter of 0.562", and thickness range of 0.036-0.065". Manufactured from zinc-plated steel, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial applications requiring corrosion resistant washers.