S-94105A396 1/2"-13 x 2 3/4" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating, extending service life in harsh industrial environments.
• Exceptional holding power from Rockwell C45 hardness, preventing loosening under high vibration and load.
• Precise Class 3A thread fit ensures tighter tolerances and reliable engagement for critical assemblies.
• Easy installation and removal with 1/4" hex drive, allowing efficient maintenance in confined spaces.
• Robust coarse UNC threading provides quick assembly and strong grip in various materials.
• Flat tip design delivers secure contact on shafts and components, minimizing surface damage.
• Compliance with ASME B18.3 guarantees consistent quality and interchangeability in professional applications.

Professional Applications & Engineering Value

This black-oxide alloy steel set screw is engineered to address common industrial challenges such as component slippage and corrosion-induced failure. Its headless hex drive and Class 3A UNC coarse threads enable rapid, secure fastening in machinery, automotive, and heavy equipment assemblies where space is limited. The Rockwell C45 hardness and flat tip ensure maximum torque transmission and minimal marring on precision parts, making it ideal for set screw applications requiring repeatable performance under dynamic stresses. By combining high-strength material with advanced surface treatment, it reduces maintenance frequency and enhances operational reliability in demanding environments.

Specification Summary & Compliance

This set screw adheres to ASME B18.3 specifications with 1/2"-13 UNC coarse threads and Class 3A thread fit for precise dimensional accuracy. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and regulatory alignment for global industrial use.