S-94063A318 10-24 x 3/8" ASME B18.6.3 Tamper-Resistant Drilled Spanner Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh environments.
• High-strength performance with 70,000 psi tensile strength and Rockwell B70 hardness, providing dependable load-bearing capacity and resistance to deformation.
• Secure and tamper-resistant installation via the drilled spanner drive, offering a specialized tooling interface for controlled torque application.
• Precise flush mounting enabled by the standard 82° countersink angle and flat head design, minimizing protrusion for a smooth surface finish.
• Reliable thread engagement with coarse UNC threads and Class 2A fit, facilitating quick assembly and reducing cross-threading risks.
• Full-threaded design for maximum grip along the entire 3/8" length, enhancing holding power in various material thicknesses.
• Regulatory peace of mind through compliance with ASME B18.6.3, RoHS 3, and REACH, ensuring adherence to industry safety and environmental standards.

Professional Applications & Engineering Value

This 10-24 UNC flat head screw is engineered to address critical fastening challenges in industrial settings. The 18-8 stainless steel material, combined with a passivated finish, provides exceptional resistance to oxidation and chemical exposure, making it ideal for applications in marine, chemical processing, and food equipment where corrosion resistance is paramount. The drilled spanner drive ensures secure installation in high-vibration environments, preventing loosening while allowing for precise torque control. Fully threaded and with a coarse thread profile, it offers rapid installation and robust clamping force in soft metals or plastics, reducing assembly time and improving joint integrity. Its compliance with ASME B18.6.3 guarantees dimensional consistency, streamlining inventory and replacement processes for maintenance teams.

Specification Summary & Compliance

This screw adheres to Class 2A thread fit tolerances per UNC standards, ensuring consistent thread engagement and interchangeability. Manufactured in accordance with ASME B18.6.3 specifications, it meets precise dimensional requirements for head diameter, length, and countersink angle. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted hazardous substances and supporting environmentally responsible sourcing and usage in global supply chains.