S-99041A148 0.688" ID Square Washers

Key Features & Benefits at a Glance

• Superior corrosion protection with zinc-plated steel construction for extended service life in harsh industrial environments
• Exceptional load distribution thanks to the 2" square design that prevents fastener embedment and surface damage
• Precision fit for 5/8" fasteners with 0.688" inner diameter ensuring secure installation and optimal performance
• Enhanced durability with Rockwell B40 hardness rating that maintains structural integrity under heavy loads
• Regulatory compliance assurance meeting both RoHS 3 and REACH standards for safe, environmentally responsible manufacturing
• Consistent thickness control between 0.225-0.265" providing reliable spacing and vibration resistance
• Heavy-duty performance in inch measurement system applications where robust mechanical fastening is critical

Professional Applications & Engineering Value

This zinc-plated steel square washer delivers critical engineering solutions for industrial applications where corrosion resistance and load distribution are paramount. The substantial 2" width provides exceptional surface coverage, preventing fastener loosening from vibration and reducing point loading on assembled materials. With its 0.688" inner diameter precisely matched to 5/8" fasteners, this heavy-duty component ensures perfect alignment while the zinc plating creates a sacrificial barrier against rust and environmental degradation. The Rockwell B40 hardness maintains dimensional stability under compression, making these industrial washers ideal for construction equipment, machinery bases, structural steel connections, and other demanding mechanical assemblies where reliability cannot be compromised.

Specification Summary & Compliance

Manufactured to precise dimensional standards with 0.688" inner diameter and 0.225-0.265" thickness range for consistent performance. This square washer meets industry-standard inch system requirements for 5/8" screw applications. The product is fully compliant with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) standards, ensuring environmental responsibility and workplace safety. Material certification confirms zinc-plated steel construction with Rockwell B40 hardness for verified mechanical properties.