S-92217A540 0.531" ID x 1" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ideal for harsh industrial environments
• Precise dimensional accuracy with 0.531" ID and 1" OD ensures perfect fit for 1/2" screw applications
• Enhanced load distribution across surfaces, reducing stress and preventing material damage
• Industry-standard compliance with ASME B18.21.1 specifications for reliable mechanical performance
• Environmental regulation adherence through RoHS 3 and REACH compliance for global supply chain compatibility
• Consistent thickness control (0.056-0.071") maintains uniform spacing and fastener alignment
• Long-term durability in demanding applications without degradation or galvanic corrosion

Professional Applications & Engineering Value

These 18-8 stainless steel flat washers deliver critical engineering solutions where corrosion resistance and dimensional precision are paramount. The 0.531" inner diameter provides exact compatibility with 1/2" screw sizes, while the 1" outer diameter maximizes surface contact for superior load distribution. Manufactured to ASME B18.21.1 standards, these inch-system washers prevent fastener loosening, reduce wear on connected components, and maintain structural integrity in industrial machinery, plumbing systems, and outdoor equipment. The stainless steel composition ensures reliable performance in humid, chemical, or marine environments where ordinary washers would fail.

Specification Summary & Compliance

This flat washer meets ASME B18.21.1 dimensional specifications with precise inner diameter (0.531"), outer diameter (1"), and thickness range (0.056-0.071"). Manufactured from 18-8 stainless steel for consistent mechanical properties. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and unrestricted international distribution. Designed specifically for use with 1/2" screw sizes in industrial fastening applications.