S-91773A256 10-24 x 2 1/2" ASME B18.6.3 Stainless Steel Round Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh environments
• Excellent mechanical strength with 100,000 psi tensile strength and Rockwell B100 hardness for demanding industrial applications
• Optimized thread engagement through partially threaded UNC coarse thread design, preventing cross-threading and simplifying installation
• Secure fastening performance with Class 2A thread fit, maintaining precise tolerances for consistent clamping force
• Enhanced driving efficiency featuring Phillips No. 2 drive and rounded head profile for reduced cam-out and improved torque transmission
• Regulatory compliance assurance meeting ASME B18.6.3 standards, RoHS 3, and REACH regulations for global industrial use
• Versatile application compatibility with 2 1/2" length and right-hand thread direction suitable for various assembly requirements

Professional Applications & Engineering Value

These 10-24 UNC partially threaded rounded head screws deliver exceptional engineering value through their 18-8 stainless steel composition and specialized design. The passivated finish provides enhanced corrosion protection, making them ideal for applications exposed to moisture, chemicals, or outdoor elements. The coarse thread configuration ensures rapid installation and superior holding power in softer materials or where vibration resistance is critical. With partial threading, these screws prevent binding in deep holes while maintaining precise clamp load distribution. The combination of Phillips drive and rounded head profile offers reliable torque application without damaging sensitive surfaces. These characteristics make them particularly valuable in industrial machinery, electrical enclosures, automotive assemblies, and construction equipment where durability and regulatory compliance are paramount.

Specification Summary & Compliance

Manufactured to exacting ASME B18.6.3 specifications, these screws maintain Class 2A thread fit tolerances for consistent performance. The UNC coarse thread (10-24) with right-hand direction ensures compatibility with standard industrial components. Critical dimensions include 2 1/2" length with minimum 1 1/2" thread length, 0.359" head diameter, and standard rounded head profile. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations guarantees environmental safety and unrestricted use across global markets.