S-91083A039 1.25" ID x 2.25" OD ASME B18.21.1 SAE Washers

Key Features & Benefits at a Glance

• Enhanced Load Distribution - The 2.25" outer diameter provides a larger surface area to evenly distribute pressure, preventing surface damage and joint loosening under heavy loads.
• Precise Fit for 1 1/8" Fasteners - The 1.25" inner diameter ensures a secure and accurate fit on standard 1 1/8" screws, reducing installation errors and improving assembly reliability.
• Robust Steel Construction - Manufactured from durable steel, these washers offer excellent strength and resistance to deformation, ensuring long-term performance in demanding applications.
• Standardized Dimensions for Interchangeability - Compliant with ASME B18.21.1 specifications, guaranteeing consistent sizing and compatibility with other standardized components.
• Optimal Thickness for Versatility - With a thickness range of 0.108-0.160", these washers provide the right balance of flexibility and rigidity for various clamping and spacing needs.
• Environmental and Regulatory Compliance - Meets RoHS 3 and REACH standards, ensuring safe use in regulated industries without hazardous substances.
• Corrosion Resistance for Longevity - The steel material, combined with standard finishes, helps resist rust and corrosion, extending service life in industrial environments.

Professional Applications & Engineering Value

These SAE flat washers are engineered to address common industrial challenges such as bolt loosening, surface indentation, and uneven load distribution. Made from high-strength steel, they provide a reliable barrier that absorbs shock and vibration, which is critical in machinery, automotive assemblies, and structural frameworks. The precise 1.25" ID and 2.25" OD dimensions ensure a perfect match for 1 1/8" screw sizes, reducing the risk of misalignment and enhancing the integrity of bolted joints. By conforming to ASME B18.21.1 standards, these washers deliver consistent performance in inch system applications, making them ideal for maintenance, construction, and manufacturing sectors where durability and compliance are paramount.

Specification Summary & Compliance

This flat washer features an inner diameter of 1.25", outer diameter of 2.25", and thickness ranging from 0.108" to 0.160", designed for use with 1 1/8" screws. It is manufactured in accordance with ASME B18.21.1 specifications, ensuring dimensional accuracy and reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental safety and restricted substance guidelines for industrial use.