S-93190A220 5/8"-18 x 1 1/2" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments thanks to 316 stainless steel construction
• High tensile strength of 70,000 psi ensures reliable, long-lasting fastening for demanding applications
• Precise Class 2A thread fit provides smooth assembly and consistent clamping force
• Fine UNF thread spacing offers enhanced vibration resistance and superior grip
• External hex drive and hex head design allows for high-torque installation with standard tools
• Full threading along the 1 1/2" length ensures maximum engagement and holding power
• Compliance with major industry standards including ASME B18.2.1, RoHS 3, and REACH for guaranteed quality and safety

Professional Applications & Engineering Value

This 5/8"-18 UNF hex head screw is engineered from 316 stainless steel, providing exceptional resistance to corrosion from chemicals, saltwater, and industrial atmospheres. The fine thread spacing and Class 2A thread fit ensure a secure, vibration-resistant connection critical in machinery, marine equipment, and structural applications. Its fully threaded design and external hex drive facilitate quick, high-strength installations, reducing assembly time while maintaining integrity under heavy loads. Ideal for industries where failure is not an option, this screw delivers reliable performance in demanding environments, from chemical processing plants to offshore installations.

Specification Summary & Compliance

This product features a 5/8"-18 UNF thread with a Class 2A fit for precise dimensional accuracy and a right-hand thread direction. It is manufactured to meet ASME B18.2.1 standards and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for industrial use.