S-98970A137 0.938" ID x 2.25" OD ASME B18.21.1 USS Washers

Key Features & Benefits at a Glance

• Superior corrosion protection through hot-dipped galvanized steel construction for extended service life in harsh environments
• Optimal load distribution with 2.25" outer diameter providing maximum surface coverage for 7/8" fasteners
• Precise fastener compatibility with 0.938" inner diameter ensuring perfect fit and alignment with 7/8" screws
• Industry-standard reliability manufactured to ASME B18.21.1 specifications for consistent performance
• Environmental compliance assurance meeting RoHS 3 standards for safe industrial applications
• Durable mechanical performance with thickness range of 0.136-0.192" providing structural stability
• Heavy-duty construction designed for demanding applications requiring robust load-bearing capabilities

Professional Applications & Engineering Value

These USS flat washers deliver exceptional engineering value through their hot-dipped galvanized steel construction, specifically engineered to combat corrosion in industrial settings where moisture and environmental exposure degrade ordinary washers. The substantial 2.25" outer diameter provides superior load distribution, preventing surface damage and maintaining structural integrity under heavy loads. Perfect for construction, machinery assembly, and structural steel applications requiring 7/8" screw compatibility, these washers solve common issues of fastener loosening and material deformation. The ASME B18.21.1 compliance ensures dimensional consistency and mechanical reliability, while the inch system measurements guarantee precise fitment in North American industrial applications where standardized components are critical for maintenance efficiency and safety compliance.

Specification Summary & Compliance

Manufactured to ASME B18.21.1 dimensional standards with inch system measurements: 2.25" OD, 0.938" ID, and thickness range of 0.136-0.192". These flat washers are designed specifically for 7/8" screw applications and feature hot-dipped galvanized steel construction. Compliance includes RoHS 3 (2015/863/EU) environmental standards, ensuring restricted substance compliance for industrial and construction applications worldwide. The washers maintain standard industrial tolerances suitable for general purpose mechanical applications.