S-92311A395 5/8"-18 x 1/2" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
• Exceptional holding power due to Class 3A thread fit and Rockwell B80 hardness, minimizing loosening under vibration.
• Secure and efficient installation with a 5/16" hex drive, allowing high torque application without slippage.
• Precise fine thread engagement (5/8"-18 UNF) for better adjustment control and load distribution in tight spaces.
• Reliable positioning and minimal surface damage from the cup tip, providing consistent clamping force.
• Headless design saves space and enables flush mounting in confined assemblies.
• Compliance with industry standards including ASME B18.3, RoHS, and REACH, ensuring safety and regulatory acceptance.

Professional Applications & Engineering Value

This 18-8 stainless steel set screw is engineered to address critical challenges in precision assemblies, such as vibration resistance and corrosion prevention. The Class 3A UNF fine thread ensures tight tolerances and reliable performance in high-stress applications like machinery, automotive components, and electrical enclosures. Its headless design with a hex drive allows for compact installations where protruding fasteners are not feasible, while the cup tip provides enhanced grip without marring shafts or hubs. Made from durable stainless steel, it withstands exposure to moisture, chemicals, and temperature variations, reducing maintenance needs and downtime in industrial settings.

Specification Summary & Compliance

This set screw features a 5/8"-18 UNF fine thread with Class 3A fit for high precision and strength. It complies with ASME B18.3 specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring it is free from hazardous substances. The Rockwell B80 hardness and right-hand thread direction provide consistent performance in demanding applications.