S-92856A109 0.406" ID x 3" OD Dished Washers

Key Features & Benefits at a Glance

• Superior load distribution with 3" outer diameter to prevent surface damage and maintain structural integrity in demanding applications
• Enhanced corrosion resistance through zinc-plated steel construction for extended service life in harsh industrial environments
• Optimized oversized hole compatibility with 0.406" inner diameter specifically designed for 3/8" screw applications requiring additional clearance
• Exceptional mechanical strength from Rockwell B40 hardness steel ensuring reliable performance under high stress conditions
• Precision dimensional control with thickness ranging 0.051-0.080" for consistent seating and uniform pressure distribution
• Regulatory compliance assurance meeting both RoHS 3 and REACH standards for environmental safety and global market acceptance
• Versatile industrial application with inch system measurements compatible with standard North American equipment and specifications

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 unique cup design with 0.406" ID and 3" OD creates an optimal bearing surface that compensates for enlarged clearance holes, preventing screw head pull-through and maintaining joint integrity. Manufactured from Rockwell B40 hardness steel, this industrial-grade component delivers exceptional durability in construction, heavy machinery, and structural assemblies where vibration and dynamic loads are common. The zinc plating provides essential corrosion protection, making it ideal for outdoor applications and environments exposed to moisture or chemicals. Engineers specify this cup washer solution to eliminate fastener loosening, reduce maintenance frequency, and ensure long-term reliability in critical connections.

Specification Summary & Compliance

This precision cup washer features inch system dimensions with 0.406" inner diameter and 3" outer diameter, specifically engineered for 3/8" screw applications. The component maintains tight thickness tolerances between 0.051-0.080" with overall height of 0.197" for consistent performance. Manufactured from zinc-plated steel with Rockwell B40 hardness, the washer complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory compliance for global industrial applications. The design follows standard inch measurement systems for seamless integration with North American industrial specifications and equipment requirements.