Metallics JTEK14P 8 x 1 in. Pan Head Phillips Self-Drilling & Tapping Screws - #2 Drill Point - Steel Zinc - Each

The Metallics JTEK14P is rated for panel thickness of 0.035 to 0.100 in. That covers typical sheet metal studs, strut, duct and enclosure flanges. Stack any thicker than 0.100 in. and the #2 point will burn before it taps, so step up to a heavier drill point for structural steel.

No pilot hole needed. It's a Type BSD self-drilling and tapping screw, meaning the drill point cuts its own hole and the 18 threads-per-inch thread forms the mating thread in one pass, within the 0.035 to 0.100 in. material range.

No. The JTEK14P is not Buy American compliant and is not ARRA compliant, with country of origin listed as multiple. On a federally funded project with domestic sourcing requirements, you'll need a domestically produced drill screw instead.

A #2 Phillips bit. The recess diameter is 0.175 in. with a gaging depth of 0.071 to 0.097 in., so a worn or oversized bit will cam out and strip the recess. Keep a fresh #2 in the gun.

Pan head, so it sits on top of the surface rather than countersinking. Head width runs 0.306 to 0.322 in. and head height 0.105 to 0.115 in. That broad bearing surface is what you want for holding a strap, clip or plate against sheet metal. If you need the head below the surface, you need a flat or trim head screw instead.

Material is steel with a zinc finish, which is a dry-location, indoor-grade coating. Fine for panels, boxes, strut and interior duct work. For exterior, damp or corrosive environments, specify a stainless self-drilling screw rather than the zinc-plated steel version.

Torsional strength is 42 lb-in minimum with a case hardness of Rockwell C32-40. That's enough for driving into 0.035 to 0.100 in. sheet metal, but torque control matters. Over-driving past seat, or trying to drill thicker stock than the rated panel range, is what shears a #8 drill screw.

Head and recess dimensions follow ASME B18.6.3-2010 and the thread conforms to SAE J78 - 2013. Worth noting for anyone matching a drawing callout: SAE J78 does not cover #7 diameter drill screws, so a #7 callout cannot be sourced to that thread standard.

Fastener length is 1 in., with the drill point and 18 TPI thread rated to drill and tap material in the 0.035 to 0.100 in. range. Measure your total stack: the point and flutes have to clear the far side of the metal for the threads to engage, so a 1 in. screw leaves plenty of room through a bracket and a stud flange but is not meant to chew through a thick built-up stack.

They ship in a jar of 100, which is also the order minimum. Jar weight is 0.55 lbs. That quantity suits a service van or an MRO shelf rather than a bulk production run.

It's specified for electrical, plumbing, heating and air conditioning work. Typical uses are mounting boxes, straps, clips and plates to sheet metal studs, strut and duct where you want a self-drilling fastener and a head that bears on the surface.