Self Drilling Screw, Self Drilling with Bonded Washer, Head Type Hex Washer, Thread Size #12-24, Head Color Gray, Length 1-1/2 In., Steel, Climaseal Finish, Drive Type Internal Hex, Driver Size 5/16'', Head Dia. 0.563 In., Head Height 0.190 In., Head Angle (Deg.) 90, Hex Width 0.313 In., Washer O.D. 0.563 In., Drill Point Size Teks 1, Attaches Steel to Steel. Attachment Range is .018 to .260 In... Drill and Tap Capacity is .018 to .095 In., Package Quantity 250
I'm surprised of Teks Drilling Screw,#12-24,1-1/2 In L,PK250 (PK/250) Model: 1415000. This is my best buy!