S-92785A559 3/8"-16 x 1/2" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in harsh industrial environments
• Superior vibration resistance thanks to the 90° cone point design that bites into materials for secure, permanent locking
• Precise Class 3A thread fit provides tighter tolerances than standard fasteners for enhanced assembly accuracy and load distribution
• Optimal torque transmission through the hex drive design, allowing for higher installation forces without stripping
• Reliable mechanical performance with Rockwell B80 hardness, maintaining structural integrity under heavy loads
• Industry-standard compliance with ASME B18.3 specifications, ensuring interchangeability and quality assurance
• Environmental regulation compliance with RoHS 3 and REACH standards, making them suitable for global supply chains

Professional Applications & Engineering Value

This 3/8"-16 UNC hex headless set screw delivers critical engineering solutions for permanent fastening applications where space constraints and vibration resistance are paramount. The 18-8 stainless steel composition provides excellent corrosion resistance for machinery exposed to moisture, chemicals, or outdoor elements, while the 90° cone point creates permanent seating by embedding into shaft materials. The Class 3A thread fit ensures precise engagement in precision equipment, reducing the risk of loosening in high-vibration environments like motors, gearboxes, and rotating assemblies. These heavy-duty set screws are engineered to maintain positional accuracy in industrial machinery, automotive components, and manufacturing equipment where reliability cannot be compromised.

Specification Summary & Compliance

This precision fastener features 3/8"-16 UNC coarse threads with Class 3A thread fit for superior dimensional accuracy, manufactured to ASME B18.3 standards. The 1/2" length and 3/16" hex drive provide consistent installation performance. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring they meet international safety and sustainability requirements for industrial applications.