S-91792A266 2-56 x 1 1/4" ASME B18.6.3 Stainless Steel Pan Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish for long-lasting performance in harsh environments
• Excellent mechanical strength with 100,000 psi tensile strength and Rockwell B100 hardness to withstand high-stress applications
• Reliable thread engagement through Class 2A thread fit and coarse UNC threading for secure fastening and vibration resistance
• Full 1-1/4" threading provides maximum grip length and load distribution across the entire fastener
• Easy installation and removal with standard slotted drive design compatible with common hand tools
• Rounded pan head profile offers a low-profile, finished appearance while preventing snagging
• Comprehensive regulatory compliance ensures material safety and meets international industrial standards

Professional Applications & Engineering Value

These 18-8 stainless steel rounded pan head screws with 2-56 UNC coarse threading are engineered to solve critical fastening challenges in demanding industrial environments. The combination of passivated finish and stainless steel material provides exceptional corrosion resistance, making them ideal for applications exposed to moisture, chemicals, or outdoor conditions. The fully threaded design along the entire 1-1/4" length ensures maximum thread engagement and load distribution, preventing loosening under vibration while maintaining 100,000 psi tensile strength. These slotted drive screws are particularly valuable in electronics assembly, machinery manufacturing, and precision equipment where reliable fastening and material compatibility are essential. The rounded pan head configuration offers a clean, low-profile appearance while providing sufficient bearing surface for secure fastening without protruding excessively.

Specification Summary & Compliance

This 2-56 UNC screw features precise Class 2A thread fit tolerances and right-hand coarse threading manufactured to ASME B18.6.3 specifications. The fastener maintains dimensional accuracy with a head diameter of 0.167" and head height of 0.053". Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and restricted substance management, making these screws suitable for global industrial applications requiring certified components.