S-94066A242 10-24 x 1/2" ASME B18.6.3 Tamper-Resistant Drilled Spanner Stainless Steel Pan Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments
• Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B96 hardness for reliable performance under high stress
• Secure and tamper-resistant installation using the drilled spanner drive, preventing slippage during tightening
• Wide compatibility and easy assembly with UNC coarse threads and Class 2A fit, ensuring smooth engagement with standard nuts
• Full-length threading provides maximum grip and load distribution across the entire fastener length
• Rounded pan head design offers a low-profile, finished appearance while reducing surface snagging
• Compliance with major industrial standards including ASME B18.6.3, RoHS 3, and REACH for guaranteed quality and safety

Professional Applications & Engineering Value

This 10-24 UNC rounded head screw delivers critical performance in demanding applications where corrosion resistance and mechanical integrity are paramount. The combination of 18-8 stainless steel and a passivated finish effectively combats oxidation and chemical exposure, extending service life in marine, chemical processing, and food equipment. The drilled spanner drive ensures secure tool engagement, preventing damage during high-torque installation in machinery assembly and structural frameworks. With coarse threading and Class 2A fit, it provides rapid installation and reliable fastening in vibration-prone environments, making it an essential component for OEMs and maintenance operations requiring durable, compliant fasteners.

Specification Summary & Compliance

This screw features a 10-24 UNC thread with Class 2A dimensional tolerance for consistent fit. Manufacturing adheres to ASME B18.6.3 specifications, ensuring precise geometry and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of restricted hazardous substances and safe for industrial use.