S-94744A269 0.406" ID x 1" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments
• Precise dimensional fit with 0.406" inner diameter and 1" outer diameter, ensuring reliable performance with 3/8" screws
• Enhanced load distribution due to controlled thickness (0.056-0.071"), reducing surface damage and fastener loosening
• Consistent mechanical strength with Rockwell B40 hardness, providing reliable performance under repeated stress
• Guaranteed interchangeability through ASME B18.21.1 compliance, ensuring seamless integration in standardized assemblies
• Environmental responsibility with full RoHS 3 and REACH compliance, meeting global regulatory standards for industrial use
• Optimized for inch-system applications, making it ideal for North American machinery and equipment manufacturing

Professional Applications & Engineering Value

This zinc-plated steel flat washer delivers critical engineering solutions for industrial applications where corrosion resistance and dimensional precision are paramount. The zinc plating provides a protective barrier against moisture and chemicals, significantly reducing failure risks in outdoor equipment, automotive assemblies, and construction machinery. With its ASME B18.21.1 certification, it ensures perfect compatibility with 3/8" screws, eliminating installation errors in high-vibration environments. The Rockwell B40 hardness maintains structural integrity under heavy loads, while the precise inner diameter of 0.406" and outer diameter of 1" offer optimal load distribution, preventing surface indentation and joint fatigue. Ideal for industrial washers requirements in manufacturing, maintenance, and heavy equipment sectors, this component enhances assembly longevity while meeting stringent RoHS and REACH environmental mandates.

Specification Summary & Compliance

This flat washer features an inner diameter of 0.406", outer diameter of 1", and thickness range of 0.056-0.071" designed for 3/8" screw applications. Manufactured from zinc-plated steel with Rockwell B40 hardness, it conforms to ASME B18.21.1 standards for dimensional accuracy and performance. The product is fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead as an alloying element in steel and REACH (EC 1907/2006) regulations, ensuring adherence to global environmental and safety requirements for industrial components.