S-92856A103 0.25" ID x 2.5" OD Dished Washers

Key Features & Benefits at a Glance

• Superior load distribution with 2.5" outer diameter for enhanced stability in oversized hole applications
• Corrosion-resistant zinc plating extends service life in demanding industrial environments
• Precise No. 12 screw compatibility ensures secure fastening and prevents loosening
• Rockwell B40 hardness rating provides exceptional durability under repeated stress
• 0.25" inner diameter design accommodates oversized holes while maintaining structural integrity
• Comprehensive regulatory compliance meets RoHS 3 and REACH standards for global industrial use
• Optimized 0.197" height profile delivers space-efficient installation without compromising performance

Professional Applications & Engineering Value

This zinc-plated steel cup washer addresses critical challenges in oversized hole applications where standard washers fail to provide adequate surface contact. The engineered 2.5" outer diameter creates a significantly larger bearing surface, effectively redistributing clamp load and preventing material deformation in sheet metal, wood framing, and composite assemblies. The Rockwell B40 hardness ensures the washer maintains its structural integrity under vibration and dynamic loads, while the zinc plating provides essential corrosion protection in harsh environments. Particularly valuable for electrical enclosures, structural framing, and equipment mounting where hole tolerances vary, this cup washer for No. 12 screws delivers reliable performance where precision fitment is challenging.

Specification Summary & Compliance

Manufactured to inch system specifications with precise dimensional tolerances, this cup washer features 0.25" ID and 2.5" OD with overall height of 0.197". The product maintains Rockwell B40 hardness throughout and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and unrestricted use in industrial applications across regulated markets.