S-92311A338 5/16"-24 x 7/16" 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 the cup point tip design, which bites into shafts and components to prevent loosening under vibration.
• High-strength performance supported by a Rockwell B80 hardness, ensuring durability and resistance to wear in demanding applications.
• Precise and secure fastening with a Class 3A thread fit, offering tighter tolerances for improved assembly accuracy and load distribution.
• Easy installation and removal using the 5/32" hex drive, allowing for efficient maintenance with standard tools.
• Reliable fine thread spacing (UNF) for enhanced grip in materials where coarse threads may not be suitable, reducing the risk of stripping.
• Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and environmental responsibility in global supply chains.

Professional Applications & Engineering Value

This 5/16"-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 provides excellent resistance to rust and chemicals, making it ideal for machinery, automotive assemblies, and outdoor equipment. The hex headless design and cup point tip ensure a flush fit and deep penetration into surfaces, delivering maximum clamping force without protruding parts. With fine thread spacing and a right-hand thread direction, it offers superior holding in precision applications, reducing maintenance downtime and enhancing operational safety in industrial set screws usage.

Specification Summary & Compliance

This set screw adheres to precise dimensional standards, including a Class 3A thread fit for tight tolerances and a UNF thread type with fine spacing. It meets ASME B18.3 specifications for consistency and reliability. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for environmentally conscious industrial applications.