S-92856A107 0.344" ID x 2.5" OD Dished Washers

Key Features & Benefits at a Glance

• Superior oversized hole coverage with 2.5" outer diameter for enhanced load distribution and surface protection
• Exceptional corrosion resistance through zinc-plated steel construction for long-lasting performance in harsh environments
• Optimized 5/16" screw compatibility with precise 0.344" inner diameter ensuring secure fastening in oversized hole applications
• Enhanced durability with Rockwell B40 hardness rating providing reliable mechanical strength under pressure
• Full regulatory compliance meeting RoHS 3 and REACH standards for safe use across industrial sectors
• Versatile mounting solution combining cup design with 0.197" height for effective spacing and alignment correction
• Consistent dimensional accuracy with thickness ranging 0.051-0.080" for reliable performance in assembly operations

Professional Applications & Engineering Value

This heavy-duty cup washer specifically addresses the critical challenge of oversized hole fastening in industrial applications. The zinc-plated steel construction provides essential corrosion protection while maintaining structural integrity in demanding environments. The unique cup design combined with the substantial 2.5" outer diameter creates an optimal bearing surface that prevents pull-through and distributes clamping forces effectively. This makes it ideal for automotive fender applications, construction mounting systems, and industrial equipment where hole misalignment or oversized drilling requires compensation. The Rockwell B40 hardness ensures the washer maintains its shape under torque, while the precise inner diameter guarantees proper 5/16" screw engagement without compromising fastener performance.

Specification Summary & Compliance

This cup washer for oversized holes features inch system dimensions including 0.344" ID, 2.5" OD, and thickness range of 0.051-0.080" with overall height of 0.197". Manufactured to precise dimensional standards for 5/16" screw size applications, it maintains Rockwell B40 hardness for consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance across global markets.