S-94744A409 0.812" ID x 2" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
• Optimal load distribution with 2" OD design to prevent surface damage and maintain joint integrity
• Precise 0.812" ID fit ensures secure seating on 3/4" screws without play or misalignment
• Consistent thickness control (0.090-0.112") for uniform clamping force and vibration resistance
• Industry-standard compliance with ASME B18.21.1 specifications for reliable mechanical performance
• Environmental regulation adherence through RoHS 3 and REACH compliance for global supply chain compatibility
• Heavy-duty construction provides reliable performance in high-stress industrial applications

Professional Applications & Engineering Value

This zinc-plated steel flat washer delivers critical engineering solutions for industrial equipment assembly, structural connections, and machinery maintenance. The zinc plating creates a protective barrier against moisture and chemical exposure, significantly reducing corrosion-related failures in outdoor or harsh environment applications. With its 2" outer diameter, the washer effectively distributes clamping forces across wider surface areas, preventing material deformation and maintaining bolt preload in 3/4" screw applications. The precise 0.812" inner diameter ensures perfect alignment with standard fasteners, eliminating installation issues while the controlled thickness variation guarantees consistent performance across production runs. These flat washers are engineered to address common challenges in construction, manufacturing, and heavy equipment sectors where vibration resistance and long-term reliability are paramount.

Specification Summary & Compliance

Manufactured to ASME B18.21.1 dimensional standards with inch system measurements: 0.812" ID, 2" OD, and 0.090-0.112" thickness range. The product maintains standard flat washer tolerances for industrial applications. Compliance includes RoHS 3 (2015/863/EU) with exemption 6(a) for lead as an alloying element in steel and REACH (EC 1907/2006) compliance with 233 SVHC substances as of 01/17/2023, ensuring regulatory adherence for international industrial markets.