S-90474A108 0.812" ID x 2.5" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Superior Load Distribution with 2.5" OD and 0.812" ID for 3/4" screws, preventing surface damage and maintaining joint integrity under high stress.
• Durable Steel Construction ensures long-lasting performance in demanding industrial environments, resisting wear and deformation.
• Precision Thickness Control (0.146-0.174") guarantees consistent spacing and reliable fastening in repetitive assembly operations.
• ASME B18.21.1 Compliance assures dimensional accuracy and interchangeability, reducing installation errors and downtime.
• RoHS 3 & REACH Compliant for safe, environmentally responsible use in global markets without hazardous substance restrictions.
• Broad Compatibility with inch-system components simplifies sourcing and integration into existing machinery and structures.
• Cost-Effective Reliability through standardized manufacturing, minimizing replacement needs and lifecycle costs.

Professional Applications & Engineering Value

These steel flat washers are engineered to solve critical challenges in industrial assembly and heavy-duty machinery. The precise 0.812" ID and 2.5" OD dimensions ensure optimal load distribution, preventing bolt head or nut embedding into soft materials and reducing stress concentration on connected parts. Made from robust steel, they withstand vibration, thermal expansion, and mechanical shocks in applications like structural frameworks, automotive assemblies, and conveyor systems. Compliance with ASME B18.21.1 standards guarantees uniformity, enabling seamless integration with 3/4" screws in the inch system, while RoHS and REACH compliance supports sustainable operations. This combination enhances safety, extends equipment lifespan, and streamlines maintenance in precision washers applications.

Specification Summary & Compliance

This flat washer features an inner diameter of 0.812", outer diameter of 2.5", and thickness range of 0.146-0.174", designed for use with 3/4" screw size in the inch system. It conforms to ASME B18.21.1 specifications for dimensional accuracy and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards without hazardous substances.