S-94744A410 0.812" ID x 2.5" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Superior corrosion protection with zinc plating that extends service life in demanding industrial environments
• Precise dimensional compatibility with 0.812" ID and 2.5" OD ensuring perfect fit for 3/4" screw applications
• Optimal load distribution through consistent 0.146-0.174" thickness, preventing surface damage and joint loosening
• Industry-standard compliance with ASME B18.21.1 specifications guaranteeing reliable mechanical performance
• Enhanced environmental safety with full RoHS 3 and REACH compliance for responsible manufacturing
• Durable steel construction providing excellent strength and longevity for heavy-duty applications
• Versatile inch system compatibility making them ideal for North American industrial equipment and machinery

Professional Applications & Engineering Value

These zinc-plated steel flat washers deliver exceptional engineering value in industrial settings where corrosion resistance and dimensional precision are critical. The zinc plating creates a protective barrier against moisture and chemical exposure, significantly reducing maintenance requirements in outdoor equipment, manufacturing machinery, and structural assemblies. Engineered to ASME B18.21.1 standards, these washers maintain consistent thickness and flatness to prevent stress concentration and distribute loads evenly across fastened surfaces. The precise 0.812" ID ensures secure seating on 3/4" screws while the generous 2.5" OD provides maximum bearing surface area, making them ideal for heavy machinery, construction equipment, and industrial piping systems where vibration resistance and joint integrity are paramount.

Specification Summary & Compliance

Manufactured to exact ASME B18.21.1 dimensional standards with internal diameter of 0.812", outer diameter of 2.5", and thickness ranging 0.146-0.174" for consistent performance. These flat washers are fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead as an alloying element in steel and meet all REACH (EC 1907/2006) requirements as of January 17, 2023, including 233 SVHC substances. The inch system measurement ensures compatibility with North American industrial standards and specifications.