S-92856A140 0.531" ID x 3.5" OD Dished Washers

Key Features & Benefits at a Glance

• Superior load distribution with 3.5" outer diameter to prevent surface damage and material deformation
• Enhanced corrosion resistance through zinc-plated steel construction for extended service life in harsh environments
• Optimized oversized hole compatibility with 0.531" inner diameter specifically designed for 1/2" screw applications
• Exceptional mechanical strength with Rockwell B75 hardness rating to withstand heavy-duty industrial stresses
• Precise dimensional stability maintaining consistent 0.051-0.080" thickness for reliable sealing and spacing performance
• Regulatory compliance assurance with RoHS 3 (2015/863/EU) certification for environmentally responsible manufacturing
• Versatile industrial application combining 0.187" overall height with robust steel construction for multiple fastening scenarios

Professional Applications & Engineering Value

This zinc-plated steel cup washer addresses critical engineering challenges in oversized hole applications where standard washers fail to provide adequate load distribution. The 3.5" outer diameter creates a significantly larger bearing surface, effectively preventing pull-through and material compression in soft substrates or thin-gauge materials. Engineered with Rockwell B75 hardness, this heavy-duty washer maintains structural integrity under substantial clamping forces, while the zinc plating offers essential corrosion protection for outdoor equipment, construction assemblies, and industrial machinery. The precise 0.531" inner diameter ensures perfect alignment with 1/2" screws, eliminating installation issues commonly encountered with mismatched fastener components in structural applications.

Specification Summary & Compliance

This cup washer for oversized holes features inch system dimensions with inner diameter of 0.531" and outer diameter of 3.5", specifically engineered for use with 1/2" screws. The washer maintains precise thickness tolerance between 0.051-0.080" with overall height of 0.187" for consistent performance. Manufactured from zinc-plated steel with Rockwell B75 hardness rating, this industrial-grade component complies with RoHS 3 (2015/863/EU) environmental standards, ensuring regulatory compliance for global industrial applications.