Metallics TS62B 14 x 1-3/4 in. Pan Head Combo Sharp Point Tapping Screws - Steel Zinc - Each

A #3 Phillips bit drives them, and the head is also slotted, so a flat blade works if you are finishing by hand. The combo recess measures 0.274 inch across with a gaging depth of 0.118 to 0.144 inch, so a worn #2 bit will cam out. Use the #3.

They ship as a box of 1,800 pieces, which is the order minimum. The full box weighs 36.13 lbs. There is no smaller break on this part number.

Type A is a sharp gimlet point screw: it needs a pre-punched or pre-drilled pilot hole in thin sheet, then it forms its own thread as it goes. It does not drill its own hole. If you are fastening into unpunched metal with no pilot, you want a self-drilling (Type TEK) screw instead. For knockout boxes, strut, and sheet with existing holes, the TS62B is the usual pick.

The TS62B is zinc plated carbon steel. Zinc is a dry indoor and protected location finish; it will corrode in persistent wet, coastal air, or direct weather exposure. For exterior or wash-down work, spec stainless or a hot-dip galvanized fastener instead.

They are flagged compliant for both ARRA and Buy American. Country of origin is listed as multiple, so if your spec requires a single named origin on the certification, state that at order time.

10 threads per inch, to ASME B18.6.4 for the thread form, with head dimensions to ASME B18.6.3-2013. That pitch is what lets it tap a clean thread in sheet rather than strip it.

Yes, the head carries a combination slot and Phillips recess. The slot is 0.064 to 0.075 inch wide and 0.06 to 0.085 inch deep, so a standard cabinet tip blade seats. For production driving use the #3 Phillips; the slot is thin enough that a power driver will chew it.