S-92505A617 3/8"-16 x 3/8" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with Class 3A thread fit ensuring precise, vibration-resistant connections in demanding applications
• Enhanced corrosion resistance from the black oxide finish, extending service life in harsh industrial environments
• High-strength durability provided by alloy steel with Rockwell C45 hardness, resisting deformation under heavy loads
• Secure installation and removal via the 3/16" hex socket drive, allowing high torque application without slippage
• Deep penetration and firm seating from the extended tip design, improving grip on shafts and collars
• Reliable coarse UNC threading for faster assembly and reduced cross-threading risks in right-hand applications
• Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for safe, global industrial use

Professional Applications & Engineering Value

This 3/8"-16 UNC set screw is engineered to address critical challenges in machinery assembly, where vibration loosening and component slippage can lead to operational failures. The black oxide alloy steel construction provides a robust barrier against rust and wear, essential for industrial environments exposed to moisture or chemicals. Its extended tip ensures maximum contact with the mating part, distributing clamping force evenly to prevent axial movement in pulleys, gears, and couplings. The hex socket drive allows for high-torque installation in confined spaces, while the Class 3A thread fit maintains tight tolerances for repeatable precision. Ideal for heavy-duty applications in automotive, manufacturing, and aerospace sectors, this screw delivers reliable performance where secure fastening is non-negotiable.

Specification Summary & Compliance

This set screw adheres to inch system measurements with a 3/8"-16 UNC coarse thread and Class 3A thread fit for superior dimensional accuracy. Manufacturing conforms to ASME B18.3 specifications (referencing ASTM F912), ensuring consistent quality and interchangeability. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for hazardous substances. Additional tolerances include tip diameter (-0.009" to 0") and tip length (-0.005" to 0"), supporting precise engineering requirements in regulated industries.