S-95289A161 3/8"-24 x 3/8" 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
• Precise, vibration-resistant locking achieved through Class 3A thread fit and fine UNF threads for secure fastening in dynamic applications
• High-strength durability with Rockwell B80 hardness, ensuring the set screw maintains its form and function under load
• Easy installation and removal with a 3/16" hex drive, allowing for efficient assembly and maintenance with standard tools
• Enhanced gripping power due to the extended tip design, which provides deeper penetration and superior holding force on shafts and collars
• Reliable performance in right-hand thread applications, suitable for standard rotational assembly processes
• Compliance with major industry standards including ASME B18.3, ensuring interoperability and quality in professional settings

Professional Applications & Engineering Value

This 3/8"-24 UNF Class 3A set screw is engineered to address common industrial challenges such as component slippage and corrosion-induced failure. Made from 18-8 Stainless Steel, it offers excellent resistance to rust and oxidation, making it ideal for use in machinery, automotive assemblies, and outdoor equipment where moisture or chemicals are present. The fine thread and Class 3A fit provide tight tolerances that minimize loosening under vibration, while the extended tip ensures maximum contact and holding strength on rotating parts like shafts and pulleys. Its headless design with a hex drive allows for flush mounting in confined spaces, streamlining installation in precision engineering applications. By integrating these features, this set screw delivers reliable, long-term performance in demanding industrial applications, reducing maintenance needs and downtime.

Specification Summary & Compliance

This set screw adheres to Class 3A thread fit for high precision in Unified National Fine (UNF) 3/8"-24 threads, with a thread diameter of 0.375". It meets the ASME B18.3 standard for dimensional consistency and performance. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring it is free from hazardous substances and suitable for global industrial use.