S-91122A211 0.5" ID Square Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments and outdoor applications.
• Superior load distribution thanks to the 2" square design, preventing surface damage and maintaining joint integrity under heavy loads.
• Precise fit for 7/16" screws with a 0.5" inner diameter, ensuring secure fastening and reducing installation errors.
• Enhanced durability and wear resistance from Rockwell B84 hardness, extending the washer's service life in high-stress assemblies.
• Reliable performance in regulated industries with full compliance to RoHS 3 and REACH standards, ensuring safety and environmental responsibility.
• Consistent dimensional accuracy in inch measurements, providing reliable interchangeability and ease of sourcing for North American projects.
• Optimized for heavy-duty applications with a thickness of 0.235-0.265", offering robust support without adding excessive weight.

Professional Applications & Engineering Value

This heavy-duty square washer is engineered to address common challenges in industrial assembly, such as surface indentation, corrosion-induced failure, and inconsistent load bearing. Made from 18-8 Stainless Steel, it provides excellent resistance to rust and chemical exposure, making it suitable for construction, machinery, and marine applications. The square shape offers a larger bearing surface compared to round washers, effectively distributing clamp load and preventing bolt head or nut embedment into soft materials. With precise inch system dimensions and a design tailored for 7/16" screws, it ensures quick, error-free installation, reducing downtime and maintenance costs in B2B procurement scenarios where reliability and compliance are critical.

Specification Summary & Compliance

This square washer features an inner diameter of 0.5", width of 2", and thickness range of 0.235-0.265", designed for use with 7/16" screws in inch-based assemblies. It meets standard dimensional tolerances for industrial washers and is manufactured from 18-8 Stainless Steel with a hardness of Rockwell B84 for consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for various engineering applications.