S-92845A004 4-40 x 3/16" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments and chemical exposure
• Maximum holding power and vibration resistance achieved through Class 3A thread fit and coarse UNC threading
• Easy installation in confined spaces with compact headless design and 0.050" hex drive
• Enhanced grip and seating provided by the extended tip design for secure fastening
• Consistent mechanical performance ensured by Rockwell B80 hardness for reliable durability
• Regulatory compliance and safety with RoHS 3 and REACH environmental standards
• Precision manufacturing adhering to ASME B18.3 specifications for dependable quality

Professional Applications & Engineering Value

This 4-40 UNC set screw in 316 Stainless Steel addresses critical industrial challenges where corrosion resistance and secure fastening are paramount. Its headless design and hex drive allow for efficient installation in tight assemblies, such as machinery, automotive components, and marine equipment, preventing loosening under vibration. The Class 3A thread fit and coarse thread spacing ensure rapid assembly and high clamping force, reducing maintenance needs. With an extended tip, it provides better engagement in soft materials, enhancing reliability in demanding applications like aerospace or electronics, where precision and longevity are essential.

Specification Summary & Compliance

This set screw features a 4-40 UNC thread size with Class 3A thread fit for precise dimensional accuracy, and is manufactured to ASME B18.3 standards. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety. Key tolerances include tip length and diameter within -0.005" to 0", supporting consistent performance in industrial fastening applications.