Itw Buildex 560055 Self Drilling Screw 1/4 in Pack 100

Product Description

The ITW BUILDEX 560055 is a 1/4-inch self drilling screw designed for fast, reliable fastening without the need for a pre-drilled pilot hole. Featuring a hex washer head and hex drive, it delivers high torque transfer and a broad bearing surface that resists pull-through. The No. 3 drill point bores through material and threads in a single pass. At 1-1/4 inches length under head with a 1/4-14 thread pitch, this screw is suited for light-gauge metal-to-metal and metal-to-substrate applications common in HVAC, light structural, and sheet metal work. Sold in a pack of 100.

This screw is commonly used in HVAC ductwork assembly, equipment mounting, metal framing, and general sheet metal fabrication. The hex washer head style is a standard choice when a wide clamping surface and wrench-driven installation are both required. Installers in mechanical, electrical, and light construction trades reach for this fastener when speed and holding strength in steel substrates matter.

Key Features

• No. 3 drill point self-drills through light-gauge steel without a pilot hole
• Hex washer head provides a broad bearing surface and resists pull-through
• Hex drive allows high-torque installation with a standard hex bit or nut driver
• 1/4-14 thread pitch engineered for secure thread engagement in steel
• Steel construction for durability in mechanical and sheet metal applications
• Sold in a 100-count pack for job-site and shop efficiency

Compatibility

Designed as an OEM-style replacement and standard fastener for light-gauge metal-to-metal and metal-to-substrate assemblies common in HVAC, sheet metal, and light structural installations.

Installation Notes

Installation is typically performed by HVAC technicians, sheet metal workers, or mechanical contractors using a hex-drive bit or nut driver at controlled speed to avoid stripping threads. Power down or de-energize any equipment before fastening near live components. Apply steady, consistent pressure during driving to allow the drill point to engage cleanly before threading begins. Do not overdrive, as overtightening can damage the washer head seat or strip the thread engagement in thin material.