L H Dottie TEKPH812 Tek Phillips Screw 8 X 0.5 in

Product Description

The L H Dottie Co TEKPH812 is a TEK-style Phillips drive self-drilling screw sized at No. 8 x 0.5 inches. Self-drilling screws eliminate the need for a pre-drilled pilot hole, combining the drill bit and fastener into a single step. This screw is suited for light-gauge metal-to-metal or metal-to-substrate fastening applications common in HVAC ductwork, electrical enclosures, and sheet metal assemblies. Installation is straightforward and fast, making it a standard fastener for sheet metal mechanics, HVAC technicians, and electrical installers working on both residential and light commercial projects.

This fastener is sold individually and is appropriate for field and shop use wherever a No. 8 Phillips drive TEK screw is specified. Typical applications include securing HVAC duct connections, attaching sheet metal panels, mounting electrical junction boxes, and general light-gauge metal fabrication. Its compact 0.5-inch length makes it well-suited for thin-material applications where a longer fastener would protrude or cause interference.

Key Features

• Self-drilling tip eliminates pre-drilling for single-step installation
• Phillips drive head for compatibility with standard No. 2 Phillips bits
• No. 8 diameter x 0.5-inch length for thin-gauge metal applications
• Sold as individual unit for flexible quantity purchasing
• Suitable for HVAC, electrical, and sheet metal fastening tasks

Compatibility

Designed as a standard TEK Phillips self-drilling screw for use in light-gauge metal fastening applications across HVAC, electrical, and general sheet metal work.

Installation Notes

Installation requires a power drill or screw gun with a No. 2 Phillips bit. Apply steady axial pressure while driving to allow the self-drilling tip to penetrate the substrate cleanly without walking. Do not overdrive — excess torque can strip the head or deform thin sheet metal. No pilot hole is required for light-gauge metal within the screw's rated material thickness range.