S-91688A253 1/2"-13 x 1 1/2" Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional holding power provided by Rockwell C54 hardness, preventing deformation under heavy loads
• Permanent swivel tip with 304 stainless steel construction maintains consistent pressure distribution without loosening
• Precise Class 2A thread fit ensures smooth installation and reliable engagement in UNC coarse threaded applications
• Maximum swivel angle of 9° allows for optimal contact on uneven surfaces while maintaining secure fastening
• Headless hex drive design enables flush mounting in confined spaces with standard 1/4" tools
• Full regulatory compliance with RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

This 1/2"-13 UNC set screw delivers critical engineering solutions for industrial applications requiring permanent positioning and vibration resistance. The 18-8 stainless steel construction provides excellent corrosion resistance in demanding environments, while the permanent swivel tip with 304 stainless steel contact surface ensures maximum grip without marring precision components. The coarse thread spacing and Class 2A thread fit enable quick installation in machinery, automotive assemblies, and manufacturing equipment where right-hand thread applications demand reliable, long-term fastening performance. The combination of Rockwell C54 hardness and swivel tip technology prevents loosening under extreme vibration, making it ideal for high-stress industrial settings.

Specification Summary & Compliance

This set screw features precise Class 2A thread fit with UNC coarse thread specifications (1/2"-13 thread size, 0.5" diameter). Manufacturing adheres to standard inch system measurements with 1-1/2" length and 1/4" hex drive compatibility. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.