S-92217A449 0.203" ID x 0.734" 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 and outdoor applications.
• Precise dimensional fit with 0.203" ID and 0.734" OD ensures reliable performance with No. 10 screws, preventing loosening and misalignment.
• Optimized load distribution due to the flat design and controlled thickness (0.056-0.071"), protecting surfaces and extending assembly life.
• Guaranteed interchangeability and quality through compliance with the ASME B18.21.1 standard for inch-series flat washers.
• Environmentally responsible manufacturing with full compliance to RoHS 3 and REACH regulations, safe for restricted substance-sensitive applications.
• Excellent durability and formability from 18-8 stainless steel, maintaining integrity under stress and in varying temperatures.
• Broad industrial compatibility for machinery, electrical enclosures, construction, and automotive assemblies requiring reliable, non-corrosive fastening.

Professional Applications & Engineering Value

These 18-8 stainless steel flat washers are engineered to solve common industrial challenges such as surface damage, galvanic corrosion, and fastener failure. The 0.203" ID is precision-matched for No. 10 screws, ensuring a snug fit that minimizes vibration-induced loosening in dynamic equipment. The 0.734" OD provides a wide bearing surface, effectively distributing clamp load and preventing embedding into soft materials or coatings. Made from corrosion-resistant 18-8 stainless steel, these washers perform reliably in moist, chemical, or high-temperature environments, making them ideal for industrial machinery, plumbing systems, electrical panels, and outdoor structures. Their compliance with ASME B18.21.1 guarantees consistent quality and dimensional accuracy, reducing installation errors and maintenance needs in professional engineering projects.

Specification Summary & Compliance

This flat washer meets the dimensional and material requirements of the ASME B18.21.1 standard for inch-series flat washers, ensuring precise fit and function. Key specifications include an inner diameter of 0.203", outer diameter of 0.734", and a thickness range of 0.056-0.071", designed specifically for use with No. 10 screw sizes. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of hazardous substances and supporting use in regulated industrial and consumer applications.