S-91081A038 1.062" ID x 2.5" OD ASME B18.21.1 USS Washers

Key Features & Benefits at a Glance

• Superior Load Distribution - Large 2.5" OD design spreads pressure evenly, preventing surface damage and joint loosening in heavy-duty applications
• Precision Fit for 1" Fasteners - 1.062" ID ensures perfect compatibility with 1" screws, reducing installation time and improving assembly accuracy
• Robust Steel Construction - Manufactured from durable steel for exceptional strength and longevity in demanding industrial environments
• ASME B18.21.1 Certified Quality - Meets rigorous industry standards for dimensional accuracy and performance reliability
• Environmental Compliance Assurance - RoHS 3 and REACH compliant for safe use in regulated industries and global markets
• Versatile Thickness Range - 0.136-0.192" thickness provides optimal spacing and vibration resistance for various assembly requirements
• Heavy-Duty Performance - USS designation ensures reliable performance in construction, machinery, and structural applications

Professional Applications & Engineering Value

These USS flat washers deliver critical engineering solutions where load distribution and surface protection are paramount. The steel construction combined with the substantial 2.5" outer diameter creates an optimal bearing surface that prevents embedment in soft materials and distributes clamping force across a wider area. This is particularly valuable in structural applications where vibration and dynamic loads can compromise joint integrity. The precise 1.062" inner diameter ensures secure fitment with 1" fasteners, eliminating play and maintaining alignment in heavy-duty assemblies. Engineers specify these ASME B18.21.1 compliant washers for construction equipment, industrial machinery, and structural steel connections where reliability cannot be compromised.

Specification Summary & Compliance

This USS flat washer features precise dimensional specifications: 1.062" inner diameter, 2.5" outer diameter, and thickness ranging from 0.136" to 0.192". Manufactured to ASME B18.21.1 standards for dimensional accuracy and performance in inch system applications. The product maintains full compliance with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) requirements, ensuring environmental safety and regulatory acceptance for industrial use across global markets.