S-91385A153 6-32 x 1/8" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Permanent vibration resistance with integrated Nylon Patch thread locker, eliminating the need for separate adhesives and ensuring reliable performance in dynamic applications.
• Superior corrosion protection from the Black-Oxide finish on Alloy Steel, extending service life in demanding industrial environments.
• Exceptional holding strength due to the high Rockwell C45 hardness, providing resistance to wear and deformation under load.
• Wide operational temperature range from -50°F to 250°F, maintaining locking integrity in both extreme cold and high-heat conditions.
• Precise and secure fastening with Class 3A thread fit and UNC coarse threads, enabling easy installation and high resistance to loosening.
• Easy installation in confined spaces using the 1/16" hex drive and headless design, ideal for set screw applications where a protruding head is not feasible.
• Positive seating and minimal surface damage from the cup tip, which helps concentrate force for a secure grip on the shaft or component.

Professional Applications & Engineering Value

This 6-32 UNC thread set screw is engineered to solve critical fastening challenges in industrial machinery, automotive assemblies, and precision equipment. The Black-Oxide Alloy Steel construction offers enhanced durability and corrosion resistance, crucial for long-term performance in harsh environments. The integrated Nylon Patch thread locker provides a permanent locking mechanism that resists loosening from vibrations and thermal cycling, a common failure point in dynamic systems. With a coarse thread spacing and Class 3A thread fit, it ensures quick assembly and a reliable hold, reducing maintenance downtime. The headless design and cup tip allow for flush mounting and effective torque transmission, making it ideal for securing collars, gears, and pulleys where space is limited and reliability is paramount.

Specification Summary & Compliance

This set screw features a 6-32 UNC thread with Class 3A thread fit for precise dimensional accuracy. It is manufactured in compliance with ASME B18.3 specifications, ensuring consistent quality and performance. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, confirming it is free of hazardous substances and safe for use in regulated industries.