S-91515A120 Length 1 5/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ensuring long-lasting performance in harsh industrial environments.
• Efficient self-drilling capability with No. 2 drill tip and 5/32" length, eliminating the need for pre-drilling and speeding up assembly in steel and sheet metal.
• Enhanced load distribution from the flanged truss head design, providing a wider bearing surface to prevent pull-through and improve joint integrity.
• Reliable thread forming with BSD tapping method and fully threaded shank, delivering strong, vibration-resistant fastening in tough materials.
• Optimized drive engagement with Phillips No. 2 drive, reducing cam-out risks and enabling consistent torque application for secure installations.
• High thread engagement with 18 TPI and 0.164" diameter, ensuring maximum holding power and resistance to loosening under dynamic loads.
• Environmental compliance with RoHS 3 standards, making these screws safe for use in regulated industries and sustainable projects.

Professional Applications & Engineering Value

These zinc-plated steel tapping screws are engineered to address common challenges in metalworking and construction, such as time-consuming pre-drilling and fastener failure. The thread forming BSD design creates precise, strong threads in steel and sheet metal, reducing stress concentrations and enhancing fatigue resistance. With a flanged truss head, the screw distributes clamping force over a larger area, minimizing surface damage and improving stability in vibrating environments. The integrated No. 2 drill tip allows for quick penetration up to 0.098" thickness, streamlining assembly in HVAC, automotive, and structural applications while maintaining RoHS compliance for eco-conscious operations.

Specification Summary & Compliance

This screw meets standard inch measurements with a thread diameter of 0.164" and 18 TPI, ensuring compatibility with common industrial specifications. It features a right-hand thread and is fully threaded for consistent performance. Compliance includes RoHS 3 (2015/863/EU), confirming adherence to environmental regulations for hazardous substance restrictions. The design follows typical thread-forming screw standards for reliable use in steel and sheet metal applications.