S-92856A105 0.281" ID x 3" OD Dished Washers

Key Features & Benefits at a Glance

• Enhanced Load Distribution - The large 3" outer diameter provides superior surface coverage, preventing pull-through in oversized holes and extending joint life
• Corrosion-Resistant Protection - Zinc-plated steel construction offers reliable rust protection in demanding industrial environments
• Precision Fit for 1/4" Fasteners - 0.281" inner diameter ensures optimal alignment and secure fastening with standard 1/4" screws
• Exceptional Mechanical Strength - Rockwell B40 hardness rating guarantees consistent performance under heavy loads and vibration
• Environmental Compliance Assurance - Full RoHS 3 and REACH compliance meets strict international environmental regulations
• Versatile Thickness Range - 0.051-0.080" thickness accommodates various gap-filling requirements while maintaining structural integrity
• Optimized Profile Design - 0.197" overall height provides substantial bearing surface without excessive protrusion

Professional Applications & Engineering Value

This heavy-duty cup washer specifically addresses the critical challenge of oversized hole applications where standard washers fail to provide adequate load distribution. The zinc-plated steel construction combined with the unique cup design creates a reinforced bearing surface that prevents fastener sinking and material deformation in wood, composite, and metal assemblies. Engineering teams specify this 3" OD washer for structural applications where hole tolerances vary, ensuring consistent clamping force and eliminating the need for custom solutions. The Rockwell B40 hardness maintains dimensional stability under dynamic loads, making it ideal for construction equipment, transportation systems, and industrial machinery where vibration resistance is paramount.

Specification Summary & Compliance

This cup washer for oversized holes features precise inch system dimensions including 0.281" ID, 3" OD, and 0.197" overall height with thickness tolerance of 0.051-0.080". Manufactured to industrial standards for 1/4" screw size applications, the component demonstrates consistent mechanical properties with Rockwell B40 hardness certification. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures global market acceptance and responsible manufacturing practices.