S-91117A244 0.938" ID x 3" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior load distribution with a large 3" outer diameter to prevent surface damage and loosening under heavy loads
• Enhanced corrosion resistance from zinc-plated steel construction, extending service life in harsh industrial environments
• Consistent dimensional accuracy with precise 0.938" inner diameter ensuring perfect fit for 7/8" screw sizes
• Exceptional durability backed by Rockwell B40 hardness rating for reliable performance under repeated stress
• Optimized thickness range (0.235-0.265") providing ideal compression and vibration resistance in assembly applications
• Full regulatory compliance meeting RoHS 3 and REACH standards for safe use in global industrial markets
• Heavy-duty construction designed specifically for demanding applications requiring maximum fastener performance

Professional Applications & Engineering Value

This zinc-plated steel flat washer delivers critical engineering solutions for industrial applications where load distribution and corrosion protection are paramount. The substantial 3" outer diameter effectively spreads clamping force over a wider area, preventing surface indentation and joint failure in structural assemblies, heavy machinery, and construction equipment. Manufactured from steel with Rockwell B40 hardness, it maintains structural integrity under extreme vibration and thermal cycling conditions. The zinc plating provides a sacrificial barrier against oxidation, making these industrial washers ideal for outdoor applications, marine environments, and chemical processing facilities where moisture and corrosive elements are present. The precise 0.938" inner diameter ensures perfect alignment with 7/8" fasteners, eliminating installation issues and reducing assembly time.

Specification Summary & Compliance

This flat washer features inch system dimensions with 3" OD, 0.938" ID, and thickness range of 0.235-0.265" specifically engineered for 7/8" screw sizes. Manufactured to industrial standards with Rockwell B40 hardness for consistent performance. Fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead as an alloying element in steel and REACH (EC 1907/2006) regulations as of January 17, 2023, ensuring environmental safety and regulatory acceptance for international industrial applications.