HVAC Self Drilling Airconditioning Duct Screws for Sheet and Metal Framing

Reliable Self-Drilling Screws for HVAC, Ductwork & Sheet-Metal Framing
These pan-head, zinc-plated self-drilling screws are purpose-built for HVAC installations, metal framing, ductwork assembly, and metal-to-metal sheet applications. Constructed from hardened steel with a drill-point tip, they cut through metal without the need for pre-drilling — saving time and labour on site

HVAC Self Drilling Airconditioning Duct Screws for Sheet and Metal Framing Square Recess Pan Head Zinc Plated 

Designed for ductwork assembly, duct joints, duct fitting and duct cladding. Pan head zinc plated self drilling screws.  Serrations under head for increased grip and resistance to vibration. Stick fit square drive for easy use in awkward and hard to reach places.

1000 pcs per box. Square driver bit included in each box