S-92311A596 5/16"-24 x 5/16" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with a cup point tip that bites into shafts for secure, permanent fastening in high-vibration environments.
• Exceptional corrosion resistance from 18-8 Stainless Steel construction, ensuring long-term reliability and durability in harsh conditions.
• Precise, fine-thread engagement with a UNF Class 3A thread fit for tighter tolerances and improved load distribution in critical assemblies.
• High-strength performance backed by a Rockwell B80 hardness rating, providing excellent resistance to wear and deformation.
• Easy and secure installation with a 5/32" hex drive, allowing for high torque application in confined, headless designs.
• Guaranteed compliance and safety meeting ASME B18.3 specifications and being fully RoHS 3 & REACH compliant for global industrial use.
• Reliable right-hand thread design ensures standard, intuitive installation for efficient assembly line operations.

Professional Applications & Engineering Value

This 5/16"-24 UNF Class 3A hex headless set screw is engineered to solve critical challenges in precision assemblies where space is limited and vibration resistance is paramount. The 18-8 Stainless Steel material offers excellent resistance to rust and corrosion, making it ideal for applications in machinery, automotive, and marine environments. The fine thread and Class 3A fit provide superior clamping force and minimal backlash, essential for maintaining alignment in gears, pulleys, and couplings. Its headless, cup point design ensures a flush finish and deep penetration into the mating part, preventing loosening under dynamic loads. This screw delivers reliable performance in industrial set screw applications, from securing collars on shafts to positioning components in high-stress equipment, ensuring long-term operational integrity.

Specification Summary & Compliance

This set screw features a 5/16"-24 UNF fine thread with a Class 3A thread fit for high precision and tight tolerances. It is manufactured in accordance with ASME B18.3 standards and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are met for industrial use.