S-94058A299 12-24 x 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated 410 stainless steel construction for extended service life in harsh environments
• Efficient self-drilling installation with No. 4 drill tip that eliminates pre-drilling requirements in materials up to 0.21" thick
• Reliable sealing performance through integrated stainless steel/rubber washer that prevents moisture ingress and maintains joint integrity
• Enhanced torque transmission with external hex drive design providing secure tool engagement and reduced stripping risk
• Strong thread-forming capability with UNC coarse threads that create durable, vibration-resistant connections in stainless steel and sheet metal
• Full-length threading advantage ensuring maximum grip length and consistent clamping force throughout the entire fastener
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for environmentally responsible manufacturing

Professional Applications & Engineering Value

These zinc-plated 410 stainless steel tapping screws deliver exceptional engineering value in demanding industrial applications where corrosion resistance and sealing integrity are critical. The thread-forming UNC design combined with the self-drilling tip significantly reduces installation time and labor costs in stainless steel and sheet metal assemblies, eliminating the need for separate drilling operations. The integrated stainless steel/rubber sealing washer provides reliable protection against environmental contaminants, making these CSD tapping screws ideal for outdoor equipment, HVAC systems, and marine applications where moisture resistance is essential. The external hex drive ensures high torque capability during installation, while the coarse thread spacing maintains secure fastening in vibration-prone environments.

Specification Summary & Compliance

Manufactured to precise dimensional standards with UNC thread form and Class 2A thread tolerances, these No. 12 size tapping screws feature a 1 1/4" length with fully threaded shank and 0.313" hex head. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and restricted substance compliance for industrial applications worldwide. The thread-forming design follows established CSD tapping screw standards for reliable performance in metal fastening applications.