Zinc Plated - #12-24 x 3/4"Phillips Flat Head Undercut Self Drilling Screw

Phillips Flat Head Undercut Self Drilling Screw #3 point:  Zinc

Undercut self drilling screws have a wide head with a flat taper beneath.  They are generally used when connecting two pieces of metal together, that is why they have a tight thread pattern.  Used largely for commercial door frames. A fastener that drills and taps its own hole during application.

A fastener that drills and taps its own hole during application.  Attaches back up plates, fixtures, door frames, channel to structural studs, and metal decks.

#6 Diameter #2  Point has a Max. Drill Capacity of .014

#8 Diameter #2 Point has a Max. Drill Capacity of .014

#10 Diameter #3 Point has a Max. Drill Capacity of .179

#12 Diameter #3 Point has a Max. Drill Capacity of .220

#14 Diameter #3 Point has a Max. Drill Capacity of .250