S-92311A727 1/2"-20 x 1/2" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional thread precision with Class 3A fit ensures reliable, vibration-resistant fastening in critical assemblies
• Optimal torque transmission via 1/4" hex drive design, preventing tool slippage during installation
• Enhanced gripping power from the cup point tip, securely biting into materials to prevent component movement
• Long-term durability backed by Rockwell B80 hardness, maintaining structural integrity under repeated stress
• Fine thread spacing provides superior adjustment precision and load distribution compared to coarse threads
• Headless design allows for flush mounting in space-constrained applications while maintaining full thread engagement

Professional Applications & Engineering Value

These 18-8 stainless steel set screws deliver critical performance in demanding industrial applications where corrosion resistance and precise positioning are paramount. The Class 3A thread fit and UNF fine threading create exceptional holding power in machinery, automotive components, and precision equipment, preventing loosening under vibration. The cup point design aggressively bites into shaft materials, creating permanent positioning without damaging the mating surface. Engineered for set screw applications requiring repeated adjustments, the combination of Rockwell B80 hardness and 1/4" hex drive ensures the fastener maintains its integrity through multiple installation cycles while providing secure tool engagement.

Specification Summary & Compliance

This set screw features precise 1/2"-20 UNF fine threads with Class 3A fit for superior dimensional accuracy and 0.5" thread diameter. Manufactured to ASME B18.3 specifications with right-hand threading and 1/2" length. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial use.