S-91979A209 2-56 x 3/16" 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 holding power ensured by Class 3A thread fit, providing precise engagement and vibration resistance
• Easy installation in confined spaces thanks to the headless hex drive design requiring only 0.035" drive size
• Enhanced fastening security through the vented cup tip design that prevents slipping and improves grip
• Reliable coarse threading with UNC 2-56 specification for quick assembly and disassembly in industrial applications
• Environmental compliance assurance meeting RoHS 3 and REACH standards for safe use across regulated industries
• Optimized for precision applications with consistent 3/16" length and right-hand threading for standardized installation

Professional Applications & Engineering Value

This 2-56 UNC set screw delivers exceptional engineering value through its 18-8 stainless steel composition, providing reliable corrosion resistance that extends service life in harsh industrial environments. The headless hex drive design enables installation in space-constrained applications where traditional fasteners cannot operate, while the vented cup tip creates superior biting action that prevents component slippage under vibration and dynamic loads. The Class 3A thread fit ensures precise tolerances for critical assemblies requiring maximum holding power, making these set screws ideal for precision machinery, electronic enclosures, and mechanical systems where reliable fastening is paramount. The combination of UNC coarse threading and standardized dimensions allows for efficient maintenance and replacement across industrial equipment.

Specification Summary & Compliance

This precision fastener features 2-56 UNC coarse threads with Class 3A thread fit for superior dimensional accuracy and engagement. The screw maintains a consistent 0.086" thread diameter with 3/16" length and incorporates a vented cup tip with 0.028" vent diameter for enhanced fastening performance. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial applications while meeting international standards for precision set screws.