S-92695A819 1/2"-20 x 1/2" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Exceptional holding power with Class 3A thread fit for precise, vibration-resistant fastening in demanding applications
• Superior corrosion resistance from the black-oxide finish on alloy steel, extending service life in harsh industrial environments
• Easy installation and removal using the 1/4" hex drive, allowing for high torque application without head interference
• Reliable tip engagement with the 118° cone point design, ensuring secure positioning on shafts and components
• High durability and strength from Rockwell C45 hardness, preventing deformation under heavy loads
• Fine thread spacing for improved adjustment accuracy and reduced loosening in dynamic assemblies
• Compliance with global standards including ASME B18.3, ensuring consistent quality and interchangeability

Professional Applications & Engineering Value

This black-oxide alloy steel set screw is engineered to address critical challenges in industrial machinery, automotive, and precision equipment assembly. The headless design with hex drive allows for flush mounting in confined spaces, while the UNF fine thread and Class 3A fit provide superior resistance to vibration-induced loosening. The 118° cone point bites securely into materials, preventing slippage and maintaining alignment in high-stress applications. Ideal for securing gears, pulleys, and collars, this set screw delivers reliable performance in heavy-duty environments where precision fasteners are essential for operational safety and longevity.

Specification Summary & Compliance

This set screw adheres to ASME B18.3 specifications with Class 3A thread fit and UNF 1/2"-20 fine threads, ensuring dimensional accuracy and interchangeability. It is manufactured from alloy steel with a black-oxide surface treatment and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance for environmental safety.