S-94625A423 Length 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with zinc-plated steel construction for long-lasting performance in demanding industrial environments
• Superior tamper resistance with T20 Torx drive design to prevent unauthorized removal in secure applications
• Efficient self-drilling capability with No. 3 drill tip that penetrates up to 0.15" thickness, eliminating pre-drilling requirements
• Optimal material displacement through B-type thread forming technology that creates strong, permanent threads in steel and sheet metal
• Clean, flush installation with 82° countersink angle and standard flat head profile for smooth surface finishes
• Maximum holding power achieved through fully threaded design that distributes load evenly across the entire fastener length
• Reliable thread engagement with precision No. 10-16 right-hand threads ensuring consistent performance in assembly operations

Professional Applications & Engineering Value

These zinc-plated steel tapping screws deliver exceptional engineering value in steel and sheet metal applications where vibration resistance and permanent fastening are critical. The thread forming technology creates precisely mated threads without generating chips, eliminating contamination concerns in electrical enclosures, HVAC systems, and metal fabrication. The tamper-resistant Torx T20 drive provides superior torque transmission while preventing unauthorized access in public fixtures, machinery guards, and security installations. With their self-drilling tip capable of penetrating 0.15" thickness, these screws significantly reduce installation time and labor costs by eliminating separate drilling operations. The fully threaded design ensures maximum pull-out resistance, making them ideal for applications subject to dynamic loads and thermal cycling.

Specification Summary & Compliance

Manufactured to precise dimensional standards with No. 10-16 thread specifications and Class 2A thread tolerances for consistent performance. These thread forming screws comply with industry standards for B-type tapping screw geometry and feature a standard 82° countersink angle for proper seating in chamfered holes. The zinc-plated finish provides corrosion protection in accordance with industry specifications, while the tamper-resistant Torx T20 drive meets security fastening requirements. Suitable for use in various industrial applications requiring reliable fastening in steel and sheet metal substrates up to the specified maximum drilling thickness.