S-94744A420 0.938" ID x 2.75" 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 harsh industrial environments
• Precise dimensional accuracy with 2.75" OD and 0.938" ID ensures perfect fit for 7/8" screw applications
• Heavy-duty thickness ranging from 0.146" to 0.174" provides reliable load distribution and surface protection
• ASME B18.21.1 compliance guarantees consistent quality and interchangeability in mechanical assemblies
• Environmental regulation compliance with RoHS 3 and REACH standards for safe, sustainable industrial use
• Durable steel core maintains structural integrity under significant pressure and vibration
• Standard inch system compatibility simplifies integration with existing North American equipment and fasteners

Professional Applications & Engineering Value

These zinc-plated steel flat washers deliver exceptional engineering value in demanding industrial applications where corrosion resistance and dimensional precision are critical. The zinc plating provides a protective barrier against moisture, chemicals, and environmental factors that typically degrade standard washers, significantly extending component lifespan in outdoor equipment, marine applications, and manufacturing facilities. Engineered to ASME B18.21.1 standards, these washers ensure consistent performance in heavy machinery, structural steel connections, and high-vibration environments where proper load distribution prevents surface damage and maintains bolt tension. The precise 2.75" OD and 0.938" ID dimensions specifically designed for 7/8" screw applications eliminate installation issues and provide reliable bearing surface across industrial assembly operations.

Specification Summary & Compliance

This flat washer features inch system dimensions with outer diameter of 2.75", inner diameter of 0.938", and thickness ranging from 0.146" to 0.174" for 7/8" screw applications. Manufactured to ASME B18.21.1 specifications for dimensional consistency and mechanical performance. The product is fully RoHS 3 (2015/863/EU) compliant with exemption 6(a) for lead as an alloying element in steel and REACH (EC 1907/2006) compliant with the latest SVHC requirements as of January 17, 2023, ensuring environmental regulation adherence for industrial distribution and use.