S-92311A349 1/2"-13 x 2 1/4" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in demanding environments
• Maximum torque transmission through 1/4" hex drive design, preventing tool slippage during installation
• Exceptional holding power with Class 3A thread fit ensuring precise, secure fastening in critical applications
• Enhanced grip and resistance to vibration thanks to the cup point design that creates deep indentations in mating surfaces
• Reliable mechanical strength with Rockwell B80 hardness for consistent performance under heavy loads
• Industry-standard compatibility with UNC coarse threads for easy installation and replacement
• Environmental compliance assurance meeting RoHS 3 and REACH regulations for safe industrial use

Professional Applications & Engineering Value

This 1/2"-13 UNC set screw delivers exceptional engineering value for industrial applications requiring reliable positioning and secure fastening. The 18-8 stainless steel construction provides excellent corrosion resistance, making it ideal for harsh environments where moisture or chemicals are present. The cup point design creates deep indentations in shafts and collars, preventing rotational slippage and maintaining precise component alignment in machinery, power transmission systems, and precision equipment. The Class 3A thread fit ensures tight tolerances for vibration-resistant assemblies, while the hex headless configuration allows for flush mounting in space-constrained applications. This combination of features solves critical engineering challenges in manufacturing, automotive, and heavy equipment sectors where component security and positioning accuracy are paramount.

Specification Summary & Compliance

This high-performance set screw features 1/2"-13 UNC coarse threads with Class 3A thread fit for precise dimensional accuracy and superior engagement. Manufactured to ASME B18.3 specifications, the fastener ensures consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) regulations and meets REACH (EC 1907/2006) requirements for hazardous substances, making it suitable for global industrial applications with strict environmental standards.