S-90064A630 Length 1 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Eliminates pre-drilling requirements with integrated No. 3 drilling tip, saving time and labor costs in steel and sheet metal assembly.
• Superior corrosion resistance provided by zinc-plated steel construction, ensuring long-term reliability in demanding industrial environments.
• Enhanced grip and load distribution from the flanged hex head design, preventing pull-through and maintaining joint integrity under vibration.
• High-strength thread forming action (BSD type) creates durable, wear-resistant threads in parent material for exceptional holding power.
• Optimized for heavy-duty fastening in materials up to 0.21" thickness, ideal for structural steel and sheet metal applications.
• Secure external hex drive allows for high-torque installation with standard tools, reducing slippage and installation errors.
• Full threading along the 1 1/2" length ensures maximum engagement and consistent clamping force across the entire fastener.

Professional Applications & Engineering Value

These zinc-plated steel flanged hex tapping screws are engineered to solve critical challenges in metal fabrication and assembly. The thread forming design eliminates the need for tapped holes, reducing production steps while creating stronger, strip-resistant threads in steel and sheet metal. The integrated drilling tip penetrates up to 0.21" thickness without pilot holes, significantly accelerating installation in structural frameworks, HVAC systems, and industrial equipment enclosures. The flanged hex head provides both superior drive torque capability and built-in washer functionality, distributing clamp load effectively to prevent material deformation. This combination of features delivers reliable performance in vibration-prone applications where joint integrity is paramount.

Specification Summary & Compliance

These 1/4"-14 thread forming tapping screws feature right-hand threads with BSD tapping screw specifications and Class 2A thread tolerances for consistent fit. Manufactured from zinc-plated steel with a No. 3 drill tip and external hex drive, they comply with industry standards for heavy-duty fasteners. The fully threaded design with 1 1/2" length and 3/8" head width ensures proper engagement. These screws meet RoHS and REACH compliance requirements for environmental safety.