S-91658A189 1/2"-13 x 1 1/2" Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 304 stainless steel construction for long-lasting performance in demanding environments
• Enhanced gripping power from ball tip design that minimizes surface damage while maintaining secure positioning
• Consistent installation reliability with Class 2A thread fit ensuring proper engagement and reduced cross-threading risks
• Optimized torque transmission through 1/4" hex drive that prevents tool slippage during tightening operations
• Exceptional durability with Rockwell C30 hardness providing resistance to deformation under heavy loads
• Wide compatibility with UNC coarse thread standard for easy integration into existing industrial assemblies
• Environmental compliance assurance meeting RoHS 3 and REACH regulations for global manufacturing applications

Professional Applications & Engineering Value

This 304 stainless steel set screw delivers critical engineering solutions for industrial applications requiring permanent positioning and vibration resistance. The ball tip design concentrates contact pressure while minimizing surface marring, making it ideal for precision machinery, automotive components, and manufacturing equipment where repeated adjustments would compromise performance. The UNC coarse threads provide faster installation in production environments, while the Class 2A thread fit ensures consistent engagement without binding. The Rockwell C30 hardness maintains dimensional stability under thermal cycling and mechanical stress, addressing common failure points in heavy-duty applications. This combination of corrosion-resistant material and precision engineering makes it particularly valuable for OEM assemblies, conveyor systems, and industrial machinery requiring reliable, long-term fastening solutions.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2A thread fit per UNC specifications, this set screw maintains tight tolerances for reliable performance. The 1/2"-13 UNC coarse thread configuration ensures proper engagement in industrial applications. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms environmental responsibility and global market acceptability. The Rockwell C30 hardness specification guarantees consistent mechanical properties throughout the fastener, while the 304 stainless steel composition provides inherent corrosion resistance without additional coatings or treatments.