Phillips Pan Head Self Drilling Screw #3 point: 410 Stainless Steel (410 Stainless is magnetic) 

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

#12 - #14 Diameter #5 Point has a Max. Drill Capacity of .500