S-91434A335 0.125" ID x 0.312" OD SAE Washers

Key Features & Benefits at a Glance

• Superior corrosion protection with black coating for extended service life in harsh environments
• Precise dimensional fit with 0.125" ID ensuring secure seating on No. 4 screws
• Optimal load distribution through 0.312" OD design that minimizes surface stress
• Consistent performance with SAE standard compliance for reliable industrial applications
• Versatile thickness range (0.020-0.040") accommodating various assembly requirements
• Regulatory compliance meeting RoHS 3 and REACH standards for global supply chain compatibility
• Durable steel construction providing mechanical strength without hardness limitations

Professional Applications & Engineering Value

These SAE flat washers deliver critical engineering solutions where corrosion resistance and dimensional precision are paramount. The black corrosion-resistant coating on steel substrate provides exceptional protection against environmental degradation, making them ideal for outdoor equipment, automotive assemblies, and industrial machinery exposed to moisture or chemicals. Their 0.125" ID ensures perfect alignment with No. 4 screws, preventing installation issues while the 0.312" OD distributes clamping forces effectively to prevent surface damage. The flat washer design maintains joint integrity under vibration and thermal cycling, offering reliable performance in demanding industrial applications where fastener failure is not an option.

Specification Summary & Compliance

Manufactured to SAE standards with inch system measurements: 0.125" inner diameter, 0.312" outer diameter, and 0.020-0.040" thickness range. These flat washers are engineered for use with No. 4 screw sizes and constructed from black corrosion-resistant-coated steel. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental responsibility and global market acceptance.