S-90126A235 1.305" ID x 2.243" OD SAE Washers

Key Features & Benefits at a Glance

• Exceptional Load Distribution – Large 2.243" OD and 1.305" ID provide superior surface coverage, reducing stress and preventing surface damage under high-torque applications.
• Superior Corrosion Resistance – Zinc yellow-chromate plating on steel offers excellent protection against rust and environmental degradation, extending service life in harsh conditions.
• High Mechanical Strength – Rockwell C43 hardness and Grade 9 classification ensure reliable performance under extreme pressure and vibration without deformation.
• Precision Fit for 1 1/4" Screws – Accurate inner diameter ensures secure fastening, minimizing loosening and maintaining assembly integrity.
• Regulatory Compliance Assurance – Meets RoHS 3 and REACH standards, guaranteeing safe use in regulated industrial and international markets.
• Durable Material Construction – Steel base with specialized plating combines toughness with long-term wear resistance, ideal for repetitive or heavy-duty use.
• SAE Standard Consistency – Manufactured to SAE inch system specifications, ensuring compatibility and interchangeability in standardized assemblies.

Professional Applications & Engineering Value

This Grade 9 SAE flat washer is engineered to address critical challenges in heavy machinery, construction, and automotive sectors where vibration resistance and load distribution are paramount. The zinc yellow-chromate plated steel construction combats corrosion in outdoor or chemically exposed environments, preventing fastener failure and reducing maintenance costs. With a Rockwell C43 hardness, it withstands high clamping forces without cracking or losing shape, ensuring reliable performance in bolted connections for structural frames, engine components, and industrial equipment. Its precise dimensions (1.305" ID x 2.243" OD) cater to 1 1/4" screw size requirements, providing a secure fit that minimizes wear and extends the lifespan of assembled parts.

Specification Summary & Compliance

This washer adheres to SAE inch system standards with an inner diameter of 1.305", outer diameter of 2.243", and thickness ranging from 0.234" to 0.266". It is classified under Grade 9 for high-strength applications and features a Rockwell C43 hardness for durability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets current environmental and safety requirements for industrial use.