S-92217A257 1.188" ID x 2.75" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 stainless steel construction, ensuring long-term reliability in harsh environments
• Excellent load distribution with a large 2.75" OD, preventing surface damage and fastener loosening under stress
• Precision dimensional fit with 1.188" ID, designed specifically for 1 1/8" screws to ensure secure and accurate assembly
• Industry-standard compliance with ASME B18.21.1, guaranteeing consistent quality and interchangeability
• Environmental regulation adherence through RoHS 3 and REACH compliance, making it suitable for regulated industries
• Durable mechanical performance with a thickness range of 0.146-0.174", providing reliable spacing and vibration resistance
• Broad industrial compatibility as an inch-system flat washer, ideal for maintenance, machinery, and construction applications

Professional Applications & Engineering Value

This 18-8 stainless steel flat washer delivers critical engineering solutions where corrosion resistance and load distribution are paramount. Its precision dimensions (1.188" ID x 2.75" OD) ensure a perfect fit for 1 1/8" fasteners, reducing stress concentrations and preventing joint failure in heavy-duty industrial applications. The ASME B18.21.1 compliance assures dimensional consistency, while the stainless steel material withstands moisture, chemicals, and temperature variations, making it ideal for machinery, structural assemblies, and outdoor equipment. By mitigating galvanic corrosion and offering REACH and RoHS 3 compliance, it supports sustainable and safe manufacturing practices without compromising on durability or performance.

Specification Summary & Compliance

This flat washer conforms to ASME B18.21.1 standards, with precise dimensions: Inside Diameter of 1.188", Outside Diameter of 2.75", and Thickness between 0.146-0.174". It is designed for use with 1 1/8" screw sizes in inch measurement systems. The product is verified to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant (including 233 SVHC as of 01/17/2023), ensuring it meets stringent environmental and safety regulations for industrial use.