Metallics JTEK82P 8 x 2 in. Pan Head Phillips Self-Drilling & Tapping Screws - #2 Drill Point - Steel Zinc - Each

No. It is a Type BSD self-drilling and tapping screw with a drill point, so it bores its own hole and cuts its own thread in one pass within the 0.035 to 0.100 in. panel range. One pass with a screw gun, no pre-drilling, no separate tapping step.

A #2 Phillips bit. The recess is a Phillips drive with a 0.175 in. recess diameter and a gaging depth of 0.071 to 0.097 in. Use a fresh #2 bit in a depth-sensitive screw gun; a worn bit is the usual cause of cam-out on 2 in. drill screws.

It stands proud. A pan head sits on top of the material, head height 0.105 to 0.115 in. with a head width of 0.306 to 0.322 in. That bearing surface is what you want for strut, channel, box mounting and clamping thin sheet. If you need the head buried, a flat or wafer head is the wrong-shape substitute for this one.

These are steel with a zinc finish, silver in color. Zinc plating is a mild corrosion coating for dry interior and protected work, not for sustained weather exposure, chemical wash-down or coastal sites. For exterior or wet locations, step up to a stainless self-drilling screw in the same #8 x 2 in. pan head Phillips configuration.

18 threads per inch, UNC, to SAE J78-2013 for the thread and ASME B18.6.3-2010 for head dimensions. Minimum torsional strength is 42 lb-in and hardness runs Rockwell C32-40, which is what lets the point cut steel without snapping the shank. The self-tapped UNC thread holds in the sheet it drills; it is not meant to be run into a pre-tapped machine-screw hole.

Metallics lists the JTEK82P as both Buy American compliant and ARRA compliant. Country of origin is recorded as multiple, so if your specification requires documentation of a single origin country for a federally funded project, get the origin confirmed against the lot you receive.

The 2 in. length is deliberate reach, not grip. On a 0.035 to 0.100 in. panel the drill point consumes only a fraction of the screw, so the extra shank lets you pass through drywall, plywood, insulation or a standoff and still tap into the steel behind it. For fastening sheet directly to sheet with nothing between, a shorter #8 drill screw leaves less point sticking out the back.

They ship in a jar, 100 count minimum. Weight of the packed jar is 0.94 lbs, and the container measures 3 in. by 3 in. by 3.6 in., so it drops into a van bin or a gang box tray without repacking.

Order Metallics JTEK82P, from the JTEK series. The designation breaks down as #8 diameter, 2 in. length, pan head Phillips, #2 drill point, steel with zinc finish.