S-94063A249 10-24 x 1 1/4" 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, ideal for harsh industrial environments.
• High tensile strength of 70,000 psi ensures reliable, long-lasting fastening under demanding mechanical loads.
• Precise Class 2A thread fit with UNC coarse threading for easy installation and secure, vibration-resistant connections.
• Standard 82° countersink angle allows for a flush, professional finish in countersunk applications.
• Drilled spanner drive design provides secure tool engagement and prevents cam-out during high-torque installation.
• Full threading along the 1-1/4" length offers maximum grip and adjustability in a wide range of material thicknesses.
• Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees consistent quality and environmental safety for regulated industries.

Professional Applications & Engineering Value

These 10-24 UNC flat head screws are engineered to address critical challenges in machinery assembly, electronic enclosures, and structural frameworks. The 18-8 stainless steel material, combined with a passivated finish, provides exceptional resistance to oxidation and chemical exposure, reducing maintenance costs in corrosive settings. The drilled spanner drive ensures reliable torque transmission without stripping, while the coarse UNC threading and Class 2A fit facilitate quick assembly and minimize cross-threading risks. Ideal for applications requiring a flush surface profile, the 82° countersink angle integrates seamlessly with standard chamfered holes, enhancing both aesthetic appeal and aerodynamic efficiency in manufactured products.

Specification Summary & Compliance

This screw features a 10-24 UNC thread size with Class 2A tolerance for precise fit, coarse thread spacing, and full threading along its 1-1/4" length. Manufacturing adheres to ASME B18.6.3 specifications, ensuring dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted hazardous substances for safe use in global markets.