S-94063A245 10-24 x 3/4" ASME B18.6.3 Tamper-Resistant Drilled Spanner Flat Head 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.
• High-strength performance offering 70,000 psi tensile strength and Rockwell B70 hardness for dependable load-bearing in demanding applications.
• Secure and tamper-resistant fastening via the drilled spanner drive, providing positive engagement and reducing slip during installation.
• Optimized flush mounting with an 82° countersink angle and standard flat head profile, enabling smooth surface finishes and reduced snagging.
• Reliable thread engagement with Class 2A thread fit and coarse UNC threading, ensuring easy assembly and vibration resistance.
• Full threading along the 3/4" length for maximum grip and uniform stress distribution across joined materials.
• Compliance with major industry standards including ASME B18.6.3, RoHS 3, and REACH, guaranteeing safety and regulatory adherence.

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 machinery, marine equipment, and outdoor structures. The drilled spanner drive ensures secure torque application, minimizing tool slippage and damage to the fastener head. With a coarse thread and Class 2A fit, it offers quick installation and reliable performance in high-vibration environments like automotive assemblies and heavy-duty manufacturing. The fully threaded design and 82° countersink angle allow for flush mounting, reducing protrusions and enhancing safety in applications where smooth surfaces are paramount.

Specification Summary & Compliance

This screw adheres to precise dimensional tolerances, including a head diameter tolerance of -0.022" to 0.023" and Class 2A thread fit per UNC standards. It is manufactured in compliance with ASME B18.6.3 specifications, ensuring consistent quality and performance. Additionally, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its safety for use in various industries without hazardous substances.