S-91655A202 Length 1 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
• Efficient thread forming design creates strong, permanent threads in sheet metal without requiring pre-tapped holes
• Enhanced load distribution through integrated flange design prevents pull-through and provides superior clamping force
• Optimized penetration performance with pointed tip and fully threaded shank ensures quick, secure fastening in thin materials
• Reliable installation compatibility specifically engineered for use with standard No. 29 drill bits (0.136" diameter)
• Secure drive engagement featuring square drive (No. 2) design for reduced cam-out and consistent torque application
• Versatile application range suitable for sheet metal up to 0.025" thickness across various industrial and construction settings

Professional Applications & Engineering Value

These No. 8 zinc-plated steel tapping screws deliver exceptional engineering value in sheet metal applications where traditional fastening methods fall short. The thread forming technology eliminates the need for separate tapping operations, significantly reducing assembly time and labor costs while creating stronger, more reliable connections. The A/AB tapping screw design with 15 threads per inch and 0.164" thread diameter ensures optimal thread engagement in thin-gauge materials, preventing stripping and maintaining structural integrity. The combination of pan head with integrated flange provides superior bearing surface, distributing clamping force evenly to prevent material deformation. These right-hand thread screws are particularly valuable in HVAC systems, electrical enclosures, and metal fabrication where vibration resistance and long-term reliability are critical.

Specification Summary & Compliance

Manufactured to precise dimensional standards with 0.164" thread diameter and 1-1/2" length, these thread forming screws maintain consistent Class 2A thread tolerances for reliable performance. The zinc-plated steel construction meets industry corrosion resistance requirements, while the square drive (No. 2) ensures compatibility with standard industrial drivers. These A/AB type tapping screws comply with relevant industrial fastening specifications and are engineered for use with No. 29 drill bits (0.136" diameter) in materials up to 0.025" maximum thickness, providing manufacturers with a compliant, high-performance fastening solution for sheet metal assemblies.