S-92685A520 Length 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments.
• High-strength thread forming creates durable, reliable threads in steel and sheet metal without pre-tapping, reducing installation time and labor costs.
• Efficient self-drilling capability with a 5/16" No. 3 drill tip that penetrates up to 0.21" thickness, eliminating the need for separate pilot holes.
• Enhanced load distribution and vibration resistance from the 0.595" flange diameter and serrated locking design, preventing loosening under dynamic loads.
• Secure, high-torque installation enabled by the external hex head drive, allowing for precise tightening with standard tools.
• Full threading ensures maximum grip and holding power along the entire 3/4" length for robust fastening in various material thicknesses.
• Reliable, right-hand thread conforms to industry standards for consistent performance and compatibility with common assembly processes.

Professional Applications & Engineering Value

These 1/4"-14 zinc-plated steel flanged tapping screws are engineered to solve critical fastening challenges in steel and sheet metal fabrication. The thread forming design eliminates the risk of cross-threading and strip-out by cold-forming mating threads, providing exceptional pull-out strength in thin materials. The integrated No. 3 drill tip and fully threaded shank enable rapid installation in assemblies up to 0.21" thick, significantly reducing production time. The external hex drive and serrated locking flange ensure vibration-resistant connections that maintain clamp load in high-stress applications like HVAC ductwork, electrical enclosures, and automotive panels, delivering reliable performance where failure is not an option.

Specification Summary & Compliance

These screws feature a 1/4" thread diameter with 14 threads per inch in a right-hand direction, conforming to BSD (British Standard Drill) tapping screw specifications. Manufactured with precision Class 2A thread tolerances for consistent fit. The zinc-plated steel construction meets industry standards for corrosion protection, and the product is compliant with RoHS and REACH environmental directives for safe industrial use.