S-91385A182 3/4"-16 x 1" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Permanent vibration resistance with nylon patch thread locker that maintains secure locking from -50°F to 250°F
• Superior corrosion protection through black-oxide coating on alloy steel for extended service life in harsh environments
• Precise thread engagement with Class 3A fit ensuring consistent clamping force and reduced assembly variability
• High-strength performance backed by Rockwell C45 hardness for reliable load-bearing capacity in heavy-duty applications
• Optimized torque transmission through 3/8" hex drive design allowing efficient installation in confined spaces
• Enhanced surface contact with cup tip design distributing pressure evenly to prevent component damage
• Industry compliance assurance meeting ASME B18.3 specifications for dimensional reliability and quality

Professional Applications & Engineering Value

Engineered for critical industrial fastening applications, this black-oxide alloy steel set screw combines material strength with precision UNF fine threading to solve common assembly challenges. The permanent nylon patch thread locker effectively counters vibration-induced loosening in machinery, automotive components, and power transmission systems, while the headless design enables flush mounting in space-constrained installations. With Rockwell C45 hardness and temperature-resistant locking capabilities, it maintains structural integrity under dynamic loads and thermal cycling, reducing maintenance frequency and improving equipment reliability in manufacturing environments.

Specification Summary & Compliance

This 3/4"-16 UNF set screw features Class 3A thread fit for precision tolerance, fine thread spacing, and cup tip configuration. Manufactured to ASME B18.3 standards with full compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring both dimensional accuracy and regulatory adherence for global industrial applications.