Self-Tapping Screws

HVAC Self-Tapping Screws — Category Overview

Self-tapping screws are among the most frequently used fasteners in residential and commercial HVAC installation. Whether you’re securing sheet metal, fastening plenums, mounting equipment, installing duct transitions, or building out a mechanical chase, a dependable self-tapping screw ensures strong structural integrity without pre-drilling. These screws are engineered with points and threads that cut their own path into metal, making them ideal for duct fabrication, electrical boxes, brackets, hangers, air handlers, and field-built transitions.

This category includes hex-head, pan-head, and Phillips self-tapping screws in a wide range of lengths and gauges, with options for self-drilling (TEK) tips designed specifically for penetrating heavier gauge sheet metal and structural steel. Choose from zinc-plated, black phosphate, and stainless steel finishes to match the application—indoor mechanical rooms, corrosive environments, rooftop equipment, or high-vibration settings.

• Self-drilling TEK screws for fast penetration into metals.
• Hex washer head screws for maximum torque and control.
• Pan-head and Phillips-head screws for interior components.
• Stainless-steel self-tappers for corrosion-prone locations.
• Needle-point screws for quick engagement with thin sheet metal.

In HVAC installs, always consider metal gauge, screw point type, coating, pull-out strength, vibration, and corrosion exposure. Rooftop units, fan housings, and equipment supports often require stronger TEK points or stainless screws, while duct fabrication and returns may use standard needle-point styles.

Pro Tip: To prevent oil-canning and rattling in ducts, pair self-tapping screws with bonded sealing washers or use lock washers when working on high-vibration equipment like blowers and rooftop units.