S-93012A403 0.219" ID x 0.5" OD ASME B18.21.1 SAE Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc galvanized coating, extending service life in harsh industrial environments
• Precise dimensional fit with 0.219" ID specifically engineered for No. 10 screws, ensuring secure fastening
• Optimal load distribution through 0.5" OD design, preventing surface damage and maintaining joint integrity
• Industry-standard compliance with ASME B18.21.1 specifications, guaranteeing reliable performance and interchangeability
• Enhanced durability with galvanized steel construction, providing long-term mechanical strength and wear resistance
• Environmental responsibility through RoHS 3 and REACH compliance, meeting global regulatory requirements
• Versatile thickness range (0.036-0.065") accommodates various application needs and compression requirements

Professional Applications & Engineering Value

These galvanized steel flat washers deliver exceptional engineering value in demanding industrial applications where corrosion protection and dimensional precision are critical. The SAE standard design with 0.219" inner diameter ensures perfect compatibility with No. 10 screws, while the 0.5" outer diameter provides optimal surface coverage to prevent embedding and distribute clamping forces effectively. The zinc galvanized coating specifically addresses common failure points in outdoor equipment, marine environments, and chemical processing facilities where moisture and corrosive elements degrade ordinary washers. Engineered to ASME B18.21.1 specifications, these flat washers maintain consistent performance in assembly lines, machinery maintenance, and structural fastening applications, reducing replacement frequency and maintenance costs.

Specification Summary & Compliance

Manufactured to exact ASME B18.21.1 dimensional standards with precise 0.219" ID and 0.5" OD measurements. The thickness tolerance range of 0.036-0.065" ensures proper fit and function across various applications. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming adherence to international safety and substance restriction requirements for industrial components.