Itw Buildex 560033 Self Drilling Screw No.12 500 Pack

Product Description

The ITW BUILDEX 560033 is a No. 12 self drilling screw designed for fast, reliable fastening in steel and metal applications. It features a hex washer head with a hex drive, allowing installation with standard hex bit tools. The No. 3 drill point eliminates the need for a pilot hole, drilling and tapping in a single pass. At 1 inch length under head with a 12-14 thread, this screw is built for secure engagement in light-gauge metal framing, HVAC ductwork, electrical enclosures, and sheet metal assemblies. Sold in a pack of 500, these fasteners are suitable for high-volume trade and production work.

These self drilling screws are commonly used in HVAC, sheet metal, and light construction applications where speed and consistency matter. The hex washer head provides a broad bearing surface and a built-in washer-style flange that distributes clamping load and resists pull-through. They are appropriate for attaching sheet metal panels, duct components, electrical boxes, and similar thin-gauge steel assemblies. Suitable for use by HVAC technicians, sheet metal workers, electricians, and general contractors working with metal substrate materials.

Key Features

• No. 3 drill point drills and taps in a single pass — no pilot hole required
• Hex washer head with hex drive for use with standard 5/16-inch hex bit drivers
• 12-14 thread for secure engagement in light-gauge steel
• 1 inch length under head suits typical sheet metal and duct panel thicknesses
• Steel construction for strength in metal-to-metal fastening applications
• 500-count pack sized for production and service volume work

Compatibility

Designed as an OEM-style replacement and general-use self drilling screw for light-gauge steel sheet metal, HVAC ductwork, and metal framing applications requiring a No. 12 hex washer head fastener.

Installation Notes

Installation is performed with a hex-drive bit, typically 5/16 inch, using a variable-speed drill or screw gun set to an appropriate clutch setting to avoid overdriving. De-energize any electrical systems and shut off HVAC equipment before fastening into live enclosures or duct assemblies. Do not overdrive — the hex washer flange should seat flush without deforming the base material. Follow applicable codes such as SMACNA duct construction standards or the NEC when installing in regulated assemblies.