S-92845A645 3/8"-16 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 demanding industrial environments
• Exceptional holding power thanks to the extended tip design and Class 3A thread fit for maximum engagement
• High mechanical strength with Rockwell B80 hardness, ensuring durability under high stress and vibration
• Secure and reliable fastening using the hex drive and headless design, preventing tampering and saving space
• Easy installation and removal with the coarse UNC thread and right-hand direction for efficient assembly
• Precision-engineered dimensions including controlled tip length and diameter tolerances for consistent performance
• Broad compatibility with standard 3/8"-16 UNC components, reducing sourcing complexity

Professional Applications & Engineering Value

This 3/8"-16 UNC Class 3A stainless steel set screw is engineered to address critical challenges in industrial assembly, such as component slippage and corrosion-induced failure. The 18-8 stainless steel material provides excellent resistance to rust and chemicals, making it suitable for harsh environments like machinery, automotive systems, and outdoor equipment. Its headless design with a hex drive allows for flush mounting in tight spaces, while the extended tip ensures deep penetration and superior grip on shafts, pulleys, and gears. The coarse thread facilitates quick installation and high clamp force, reducing assembly time and maintenance needs. Ideal for permanent or semi-permanent fastening in high-vibration applications, this screw delivers reliable performance and long-term value for engineers and OEMs.

Specification Summary & Compliance

This set screw adheres to ASME B18.3 specifications, ensuring dimensional accuracy and interchangeability. The thread fit is Class 3A, providing tight tolerances for high-precision assemblies. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of hazardous substances. Key dimensions include a thread diameter of 0.375", length of 3/8", and tip diameter of 0.25" with specified tolerances for consistent quality.