S-92186A557 5/8"-18 x 2 1/2" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments like marine or chemical processing.
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads and mechanical stress.
• Fine UNF threading (5/8"-18) provides enhanced vibration resistance and secure fastening in precision assemblies.
• Class 2A thread fit offers consistent, easy assembly while maintaining dimensional accuracy for reduced installation time.
• Rockwell B70 hardness delivers excellent durability and wear resistance for long-term use in industrial settings.
• Partial threading design allows for controlled clamping force and improved grip in varied material thicknesses.
• External hex drive and standard head dimensions enable quick installation with common tools, boosting efficiency.

Professional Applications & Engineering Value

Engineered for demanding industrial applications, this 316 Stainless Steel hex head screw addresses common challenges like corrosion and mechanical failure. The UNF fine thread and Class 2A fit minimize loosening under vibration, making it ideal for machinery, structural frameworks, and equipment in corrosive environments. With a tensile strength of 70,000 psi and Rockwell B70 hardness, it withstands high-stress conditions while the partial threading ensures precise clamping. Compliant with ASME B18.2.1, it guarantees interoperability and reliability, reducing downtime and maintenance costs in sectors such as manufacturing, marine, and chemical processing.

Specification Summary & Compliance

This screw features a 5/8"-18 UNF fine thread with Class 2A thread fit for consistent dimensional accuracy. It meets ASME B18.2.1 manufacturing standards and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity.