S-91122A218 0.938" ID Square Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional load distribution with 3" square design, preventing surface damage and loosening under heavy loads
• Precision fit for 7/8" screws with 0.938" inner diameter, ensuring secure fastening and vibration resistance
• Enhanced durability with Rockwell B84 hardness, maintaining structural integrity under repeated stress
• Reliable thickness tolerance (0.235-0.265") for consistent performance in demanding assemblies
• Environmental compliance meeting RoHS 3 and REACH standards, safe for regulated industries
• Heavy-duty application readiness in inch measurement system, compatible with standard industrial equipment

Professional Applications & Engineering Value

This heavy-duty square washer delivers critical engineering value in applications where standard washers fail. The 18-8 stainless steel composition provides exceptional corrosion resistance, solving premature failure issues in chemical processing, marine, and outdoor installations. The generous 3" square surface area distributes clamping force effectively, preventing joint loosening in structural steelwork, machinery bases, and heavy equipment assemblies. With precise 0.938" ID matching 7/8" screw sizes, it eliminates play in high-vibration environments while the controlled thickness range (0.235-0.265") ensures predictable compression behavior. These industrial washers meet the demands of maintenance, construction, and manufacturing sectors where reliability and compliance are non-negotiable.

Specification Summary & Compliance

Manufactured to precise dimensional standards with 0.938" inner diameter and thickness range of 0.235-0.265" for consistent performance. The washer conforms to inch measurement system requirements and is designed specifically for 7/8" screw sizes. Material certification includes 18-8 stainless steel with Rockwell B84 hardness verification. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and regulatory acceptance across global markets.