Shook Manufacturing 11226 Drilltip Screw 8x3/4 1000 Pack

Product Description

The SHOOK MANUFACTURING 11226 is a self-drilling, drill-tip screw used in metal-to-metal and light metal fastening applications common in HVAC, electrical, and light construction work. At size 8x3/4, this screw features an indented hex washer head with a 1/4-inch drive size and a zinc-plated steel body that provides basic corrosion resistance. Each box contains 1,000 pieces, making this a practical bulk option for techs and installers who go through fasteners at volume. The drill tip eliminates the need for a pilot hole in light-gauge material, reducing installation steps on sheet metal ductwork, panels, and enclosures.

These screws are suited for residential and commercial HVAC installation and service, specifically for securing sheet metal duct sections, junction box covers, equipment panels, and similar light-gauge steel assemblies. Electricians and HVAC technicians commonly use this screw size for metal stud framing, ductboard fastening, and equipment enclosure work where a self-drilling tip speeds up production. The indented hex washer head provides clamping surface and is driven with a standard 1/4-inch hex driver bit.

Key Features

• Self-drilling drill tip eliminates pilot hole in light-gauge metal
• Indented hex washer head with 1/4-inch drive for high-torque power tool use
• Zinc-plated steel construction for basic corrosion resistance
• 3/4-inch screw length suited for light sheet metal and panel fastening
• Bulk pack of 1,000 pieces per box for high-volume trade use

Compatibility

Designed as a general-purpose self-drilling fastener for light-gauge sheet metal applications including HVAC ductwork, electrical panels, and metal enclosures where an 8x3/4 drill-tip screw is specified.

Installation Notes

HVAC technicians and electricians typically install these screws using a 1/4-inch hex-drive bit in a cordless or corded screw gun. No pilot hole is required in light-gauge sheet metal, but the material thickness should fall within the capacity range appropriate for a size 8 drill-tip screw. Avoid overdriving, which can strip the material or compromise the fastener seating. Follow applicable codes and manufacturer guidance for the assembly being fastened.