S-94744A229 0.203" ID x 0.562" 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 demanding industrial environments
• Enhanced load distribution with precise 0.203" ID and 0.562" OD dimensions, preventing surface damage and maintaining joint integrity
• Reliable hardness performance at Rockwell B40, ensuring consistent performance under vibration and load stress
• Industry-standard compliance with ASME B18.21.1 specifications, guaranteeing dimensional accuracy and interchangeability
• Environmental regulation adherence with full RoHS 3 and REACH compliance, meeting global manufacturing requirements
• Optimized for No. 10 screws providing perfect fit and secure fastening in assembly operations
• Durable thin-profile design with 0.036-0.045" thickness, offering space-efficient protection without compromising strength

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 Rockwell B40 hardness ensures reliable performance in high-vibration environments, while the inch system dimensions (0.203" ID x 0.562" OD) provide optimal load distribution for No. 10 screw applications. Engineered to ASME B18.21.1 standards, this washer prevents joint loosening and surface damage in machinery assembly, electrical enclosures, and structural frameworks. The zinc plating creates a protective barrier against moisture and chemicals, making it ideal for outdoor equipment, automotive components, and manufacturing facilities requiring long-term fastening reliability.

Specification Summary & Compliance

This flat washer maintains precise dimensional tolerances per ASME B18.21.1 specifications with inner diameter of 0.203", outer diameter of 0.562", and thickness ranging 0.036-0.045". Manufactured from zinc-plated steel with Rockwell B40 hardness rating, it complies with RoHS 3 (2015/863/EU) under exemption 6(a) for lead as steel alloying element and meets REACH (EC 1907/2006) compliance requirements as of January 17, 2023, covering 233 SVHC substances.