S-92311A274 4-48 x 3/32" 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 from the Class 3A fine thread fit, ensuring minimal backlash and secure, vibration-resistant fastening.
• Easy installation and high torque capability with the 0.050" hex drive, allowing for efficient assembly with standard tools.
• Reliable, non-slip grip provided by the cup point tip, which bites into surfaces to prevent component movement.
• Consistent performance and durability backed by Rockwell B80 hardness, offering a balance of strength and toughness.
• Space-saving design as a headless set screw, perfect for applications with limited clearance.
• Guaranteed quality and safety through compliance with ASME B18.3, RoHS 3, and REACH standards.

Professional Applications & Engineering Value

This 4-48 UNF Class 3A set screw is engineered to address critical fastening challenges in precision assemblies. The fine thread spacing and Class 3A thread fit deliver tight tolerances, reducing the risk of loosening under dynamic loads and vibrations commonly found in machinery, electronics, and automotive components. Made from 18-8 Stainless Steel, it resists corrosion from moisture, chemicals, and outdoor exposure, extending service life in demanding industrial settings. The headless hex drive and cup point design allow for flush mounting and secure contact, making it ideal for securing collars, gears, and pulleys where space is constrained and reliability is paramount. Its compliance with ASME B18.3 ensures dimensional consistency, while meeting RoHS 3 and REACH regulations supports environmental and safety standards in global supply chains.

Specification Summary & Compliance

This set screw features a 4-48 UNF fine thread with Class 3A fit for high precision, a thread diameter of 0.112", and a length of 3/32". It includes a right-hand thread direction, hex drive size of 0.050", and cup point tip. Manufactured to ASME B18.3 specifications, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) requirements, ensuring adherence to industry and regulatory standards for safe, reliable use.