S-90481A249 0.531" ID x 1.625" OD Oversized 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 0.531" ID and 1.625" OD ensuring perfect fit for 1/2" screws and consistent performance
• Optimized load distribution with 1.625" outer diameter, reducing surface pressure and preventing material damage
• Versatile thickness range (0.051-0.080") accommodates various assembly requirements and tension adjustments
• Environmental compliance with RoHS 3 and REACH standards, ensuring safe use in regulated industries
• Reliable fastening performance through flat washer design that maintains bolt tension and prevents loosening
• Heavy-duty construction suitable for demanding applications requiring durable, long-lasting hardware components

Professional Applications & Engineering Value

This zinc-plated steel flat washer delivers exceptional engineering value by addressing common industrial fastening challenges. The zinc plating provides a protective barrier against corrosion, significantly extending component life in environments exposed to moisture, chemicals, or outdoor conditions. With precise 0.531" inner diameter specifically designed for 1/2" screws, it ensures proper seating and eliminates misalignment issues during assembly. The generous 1.625" outer diameter distributes clamping force over a wider area, preventing surface damage to soft materials and maintaining joint integrity under vibration or dynamic loads. These industrial washers serve critical roles in machinery assembly, structural steel connections, automotive applications, and construction projects where reliable fastening solutions are essential for safety and performance.

Specification Summary & Compliance

This flat washer features inch system dimensions with 0.531" inner diameter, 1.625" outer diameter, and thickness ranging from 0.051" to 0.080" for 1/2" screw size applications. Manufactured from zinc-plated steel, the product maintains dimensional consistency for reliable performance. The washer is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental standards for industrial hardware. While hardness is not rated, the construction provides adequate strength for typical fastening hardware requirements in commercial and industrial settings.