S-90126A216 1.375" ID x 2.5" OD SAE Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding industrial environments
• Optimal load distribution through precise 1.375" ID x 2.5" OD dimensions, preventing surface damage and maintaining joint integrity
• Enhanced mechanical strength meeting SAE Grade 5 standards, ensuring reliable performance under high-stress applications
• Perfect compatibility with 1 1/4" screw sizes, reducing installation time and eliminating fastener mismatch issues
• Consistent thickness control (0.136-0.192") for uniform pressure distribution and vibration resistance
• Environmental compliance assurance with RoHS 3 and REACH regulations, meeting global sustainability requirements
• Durable industrial-grade performance through hardened steel material, suitable for heavy machinery and construction applications

Professional Applications & Engineering Value

These zinc-plated steel flat washers deliver critical engineering solutions for industrial assembly challenges. The SAE Grade 5 construction provides exceptional load-bearing capacity, while the precise inch-system dimensions (1.375" ID x 2.5" OD) ensure perfect alignment with 1 1/4" screw sizes, eliminating play and reducing stress concentration points. The zinc plating creates a protective barrier against corrosion, making these flat washers ideal for outdoor equipment, automotive assemblies, and manufacturing machinery where environmental exposure is a concern. Their robust design prevents bolt head embedding and surface damage, extending the service life of connected components in heavy-duty applications while maintaining consistent clamping force under vibration and thermal cycling conditions.

Specification Summary & Compliance

Manufactured to SAE standards with precise dimensional tolerances, these flat washers feature a 1.375" inner diameter, 2.5" outer diameter, and thickness range of 0.136-0.192" for consistent performance. The Grade 5 classification ensures mechanical reliability, while full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations guarantees environmental safety and regulatory acceptance for global industrial applications.