S-92198A807 5/8"-11 x 3 1/4" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ensuring long-term reliability in harsh industrial environments
• High tensile strength of 80,000 psi provides exceptional load-bearing capacity for demanding applications
• Rockwell B70 hardness offers excellent durability and resistance to wear during installation and service
• External hex drive design enables secure tool engagement and efficient installation with standard wrenching tools
• Class 2A thread fit ensures smooth assembly and reliable fastening performance in UNC coarse thread applications
• Partially threaded configuration allows for precise clamping force control and vibration resistance
• Comprehensive compliance with ASME B18.2.1 standards guarantees dimensional accuracy and interchangeability

Professional Applications & Engineering Value

This 5/8"-11 UNC hex head screw delivers exceptional engineering value through its 18-8 stainless steel composition, providing superior corrosion resistance that eliminates premature failure in moisture-rich industrial settings. The coarse thread design ensures rapid assembly and reliable performance in applications where vibration resistance is critical. With 80,000 psi tensile strength and Rockwell B70 hardness, this partially threaded fastener maintains structural integrity under heavy loads while the external hex drive facilitates quick installation in confined spaces. Ideal for structural steel connections, heavy machinery assembly, and industrial equipment maintenance, this hex head screw solves common challenges of corrosion, vibration loosening, and installation efficiency in demanding B2B applications.

Specification Summary & Compliance

This hex head screw features Class 2A thread fit per UNC standards with precise dimensional accuracy. Manufactured to meet ASME B18.2.1 specifications for dimensional consistency and performance reliability. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring environmental responsibility and regulatory adherence for global industrial applications. Thread specifications include 5/8"-11 UNC coarse threading with minimum thread length of 1-1/2" and overall length of 3-1/4".