S-91381A189 8-32 x 3/16" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating that protects against rust and extends service life in harsh industrial environments
• Exceptional surface protection through integrated brass soft tip that prevents damage to mating components during installation and adjustment
• Precise Class 3A thread fit ensures tight tolerances and reliable fastening performance in critical applications
• High-strength alloy steel construction with Rockwell C28 hardness provides excellent durability and resistance to wear
• Easy installation and removal with 5/64" hex drive that allows for secure tool engagement in confined spaces
• Reliable coarse UNC threading offers quick assembly and strong holding power in various materials
• Comprehensive regulatory compliance meeting ASME B18.3 standards and environmental regulations including RoHS 3 and REACH

Professional Applications & Engineering Value

This 8-32 UNC set screw delivers exceptional engineering value through its specialized black-oxide alloy steel construction and integrated brass soft tip. The combination addresses common industrial challenges where component protection and secure fastening are paramount. The headless design with 5/64" hex drive enables flush mounting in precision equipment while the Class 3A thread fit ensures vibration resistance in demanding applications. Ideal for machinery assembly, automotive components, and electronic enclosures, this set screw prevents surface marring on expensive components while maintaining consistent clamping force. The coarse UNC threading provides rapid installation in production environments, reducing assembly time without compromising holding strength.

Specification Summary & Compliance

This precision fastener features 8-32 UNC coarse threading with Class 3A thread fit for superior dimensional accuracy. Manufacturing specifications strictly adhere to ASME B18.3 standards, ensuring consistent quality and performance. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial applications. Additional specifications include right-hand thread direction, 3/16" length, and brass tip measuring 0.047" in length and 0.094" in diameter.