S-90126A035 0.656" ID x 1.312" OD ASME B18.21.1 SAE Washers

Key Features & Benefits at a Glance

• Enhanced Corrosion Resistance: Zinc-plated steel construction provides reliable protection against rust and environmental degradation in demanding industrial settings.
• Optimal Load Distribution: Flat washer design with 1.312" OD and 0.656" ID effectively spreads clamping force, preventing surface damage and joint loosening.
• Precision Fit for 5/8" Fasteners: Accurately sized inner diameter ensures a secure fit and stable performance with standard 5/8" screws.
• Industry-Standard Compliance: Manufactured to ASME B18.21.1 specifications, guaranteeing consistent quality, dimensional accuracy, and interchangeability.
• Environmental & Safety Assurance: Compliant with RoHS 3 and REACH regulations, ensuring safe use and adherence to global environmental standards.
• Durable Material Strength: Steel core with zinc plating offers excellent mechanical strength and long-term durability for repeated use.
• Broad Industrial Compatibility: Designed for the inch measurement system, making it ideal for a wide range of machinery, equipment, and structural applications.

Professional Applications & Engineering Value

This SAE flat washer is engineered to address critical challenges in industrial assembly and maintenance. The zinc-plated steel material provides a robust barrier against corrosion, significantly extending service life in humid or chemically aggressive environments. Its precise dimensions—0.656" ID and 1.312" OD—ensure uniform load distribution, which helps prevent bolt loosening, reduces stress concentration on connected surfaces, and maintains joint integrity under vibration or dynamic loads. Ideal for use with 5/8" screws in construction, automotive, and heavy machinery, this washer enhances fastener performance, minimizes maintenance downtime, and supports reliable operation in demanding industrial applications.

Specification Summary & Compliance

This flat washer meets ASME B18.21.1 standards, ensuring precise dimensional tolerances and consistent performance for inch-series fasteners. Key specifications include an inner diameter of 0.656", outer diameter of 1.312", and thickness ranging from 0.074" to 0.121". The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety requirements for industrial use.