S-94744A438 1.062" ID x 1.75" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc plating for extended service life in demanding industrial environments
• Precise dimensional accuracy (1.062" ID, 1.75" OD) ensures perfect fit for 1" screws and optimal load distribution
• Enhanced durability through zinc-plated steel construction that withstands vibration and mechanical stress
• Industry-standard compliance with ASME B18.21.1 specifications for reliable performance in critical applications
• Environmental responsibility with full RoHS 3 and REACH compliance meeting strict regulatory requirements
• Versatile thickness range (0.090-0.112") accommodates various assembly requirements and compression needs
• Heavy-duty performance ideal for industrial machinery, construction, and mechanical systems requiring reliable fastening

Professional Applications & Engineering Value

This zinc-plated steel flat washer delivers exceptional engineering value by addressing common industrial fastening challenges. The zinc plating provides a protective barrier against corrosion, significantly extending component life in harsh environments where moisture and chemicals are present. Engineered to ASME B18.21.1 standards, these flat washers ensure precise dimensional control for 1" screw applications, preventing loosening under vibration and maintaining consistent clamping force. The robust steel construction combined with the protective coating makes these industrial washers ideal for heavy machinery, structural assemblies, and equipment manufacturing where reliability is paramount. The controlled thickness variation allows for proper compression and surface distribution, reducing point loading and preventing damage to connected materials.

Specification Summary & Compliance

This flat washer features precise inch dimensions with 1.062" inner diameter, 1.75" outer diameter, and thickness ranging from 0.090" to 0.112" for 1" screw size applications. Manufactured in compliance with ASME B18.21.1 specifications for dimensional accuracy and performance standards. The product is RoHS 3 (2015/863/EU) compliant with exemption 6(a) for lead as an alloying element in steel and fully REACH (EC 1907/2006) compliant with the latest SVHC requirements as of January 17, 2023.