S-92224A217 12-24 x 1 1/4" ASME B18.6.3 Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with black oxide steel coating for prolonged service life in demanding industrial environments
• Superior holding power from 60,000 psi tensile strength and Rockwell B70 hardness for reliable, heavy-duty fastening applications
• Quick installation efficiency through No. 3 Phillips drive and fully threaded UNC coarse thread design
• Consistent thread engagement with Class 2A thread fit ensuring precise, vibration-resistant connections
• Broad compatibility with standard 12-24 UNC components and rounded pan head profile for flush surface mounting
• Regulatory compliance assurance meeting ASME B18.6.3 specifications and environmental standards (RoHS 3/REACH)
• Optimized load distribution from 1 1/4" length and rounded head design reducing surface pressure points

Professional Applications & Engineering Value

These 12-24 UNC coarse thread screws with black oxide steel construction address critical industrial fastening challenges where corrosion resistance and structural integrity are paramount. The fully threaded design provides maximum grip length for superior pull-out resistance in metal assemblies, while the rounded pan head with Phillips drive enables efficient installation in confined spaces. Engineered to withstand vibrational stresses and environmental exposure, these heavy-duty fasteners deliver reliable performance in machinery, equipment manufacturing, and structural applications requiring ASME B18.6.3 compliance. The combination of 60,000 psi tensile strength and Rockwell B70 hardness ensures consistent performance under dynamic loading conditions, making them ideal for automotive, industrial machinery, and construction applications demanding durable thread engagement.

Specification Summary & Compliance

These rounded head screws feature precision 12-24 UNC coarse threads with Class 2A thread fit for consistent dimensional accuracy. Manufacturing complies with ASME B18.6.3 standards for dimensional and mechanical requirements. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring restricted substance compliance. The 1 1/4" length and fully threaded configuration maintain specification consistency across production batches for reliable interchangeability.