S-90289A340 10-32 x 3/8" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide coating, extending service life in harsh industrial environments
• Exceptional holding power due to Class 3A fine thread fit and cup tip design, preventing component slippage
• High-strength durability from alloy steel construction with Rockwell C45 hardness, maintaining integrity under heavy loads
• Secure locking capability through serrations that resist loosening from vibration in machinery applications
• Precise installation control with 3/32" hex drive in headless design, ideal for confined spaces
• Reliable thread engagement with 10-32 UNF right-hand fine threads, ensuring consistent fastening performance
• Regulatory compliance assurance meeting ASME B18.3 standards and environmental regulations for global industrial use

Professional Applications & Engineering Value

This 10-32 UNF Class 3A set screw delivers critical engineering solutions for industrial applications where vibration resistance and precise component positioning are paramount. The Black-Oxide alloy steel construction provides superior corrosion protection while maintaining the Rockwell C45 hardness required for high-stress environments. The combination of fine thread spacing and cup tip design creates maximum clamping force, preventing shaft slippage in power transmission systems, machinery collars, and precision instruments. The headless hex drive configuration allows for flush mounting in space-constrained assemblies, while the serrations locking feature maintains position integrity despite continuous operational vibrations. These industrial set screws are engineered to solve common challenges in manufacturing equipment, automotive systems, and precision mechanical assemblies where reliable, long-term fastening is essential.

Specification Summary & Compliance

This precision fastener maintains Class 3A thread fit tolerances with 10-32 UNF fine threads in right-hand direction, ensuring precise engagement in critical applications. Manufacturing complies with ASME B18.3 specifications for dimensional accuracy and performance standards. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental regulations for hazardous substance restrictions. With a defined length of 3/8" and 3/32" hex drive size, this set screw delivers consistent performance across industrial applications requiring reliable, high-strength fastening solutions.