S-94059A261 12-24 x 7/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in harsh industrial environments
• Integrated sealing protection through steel/rubber washers that prevent moisture ingress and provide reliable weatherproofing
• Efficient thread forming design creates strong, permanent threads in steel and sheet metal without requiring pre-tapping
• Self-drilling capability with 0.325" drill tip eliminates need for pilot holes, reducing installation time and labor costs
• High torque transmission through external hex drive design ensures secure fastening and prevents stripping during installation
• Maximum material penetration with 0.21" drilling thickness capacity and full threading for superior holding power
• Standardized UNC coarse threading provides excellent engagement and vibration resistance in various metal applications

Professional Applications & Engineering Value

These 12-24 UNC zinc-plated steel tapping screws deliver exceptional engineering value in metal fabrication and construction applications. The thread forming CSD design creates precise, durable threads in steel and sheet metal substrates without generating chips, eliminating contamination risks in sensitive assemblies. The integrated steel/rubber sealing washer provides critical environmental protection against moisture and corrosion, while the self-drilling tip significantly reduces installation time by eliminating separate drilling operations. Engineered for industrial fastening in HVAC systems, metal building components, and machinery enclosures, these screws maintain reliable performance under vibration and load stress, making them ideal for demanding sheet metal applications where joint integrity is paramount.

Specification Summary & Compliance

Manufactured to precise dimensional standards with UNC coarse thread profile and Class 2A thread tolerances for consistent performance. The external hex drive configuration ensures compatibility with standard industrial tools. These thread forming tapping screws comply with industry standards for metal fastening applications and meet RoHS and REACH environmental compliance requirements. The zinc-plated steel construction provides corrosion resistance while maintaining the mechanical strength necessary for structural fastening applications in steel and sheet metal substrates.