S-91655A194 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in industrial environments
• Efficient thread forming design creates strong, permanent threads in sheet metal without pre-tapping requirements
• Flanged pan head with No. 2 square drive provides excellent torque transmission and prevents over-tightening in thin materials
• Fully threaded pointed tip ensures maximum grip and faster installation in materials up to 0.025" thickness
• Optimized for No. 29 drill bits (0.136" diameter) for precise fit and reduced assembly time in sheet metal applications
• Right-hand thread configuration delivers reliable fastening performance in standard industrial applications
• A/AB screw type compatibility meets industry standards for consistent performance across various sheet metal thicknesses

Professional Applications & Engineering Value

These No. 8-15 thread forming screws are specifically engineered to address common challenges in sheet metal assembly, where traditional fastening methods often lead to stripped threads or insufficient holding power. The zinc-plated steel construction provides essential corrosion protection while maintaining the necessary strength for industrial environments. The flanged pan head design with No. 2 square drive offers superior torque transmission, preventing cam-out during installation and ensuring consistent clamping force. As thread forming screws, they displace material rather than removing it, creating stronger thread engagement that resists vibration loosening in sheet metal applications up to 0.025" thickness. This makes them ideal for HVAC systems, electrical enclosures, and metal fabrication where reliable, permanent fastening is critical.

Specification Summary & Compliance

These tapping screws feature precise 0.164" thread diameter with 15 threads per inch and comply with standard Class 2A thread tolerances for consistent performance. The A/AB screw type designation ensures compatibility with industry-standard thread forming applications. Manufactured from zinc-plated steel, these screws meet relevant industrial specifications for sheet metal fastening and are designed for use with No. 29 drill bits (0.136" diameter) as specified. The fully threaded design with pointed tip provides complete engagement throughout the material thickness for maximum holding power in industrial applications.