Metallics TEKDK1SS Screws 8--10 Hwh TS D-Pt Kit SS (Trey 1)

The TEKDK1SS tray holds 372 pieces total: a 1/4 inch driver, a 5/16 inch driver, 40 #8 x 1 inch hex washer head drill screws, 50 #10 x 1/2 inch, 35 #10 x 3/4 inch, and 30 #10 x 1 inch hex washer head stainless drill screws. All screws are hex washer head with a drill point, so the two included drivers cover every screw in the tray.

No. These are Type BSD self-drilling screws: the drill point cuts its own hole and the spaced threads form mating threads in one pass, so no pilot hole, drill bit or tap is needed. Metallics cites a drill time of 2.5 seconds through a 1 mm thick plate.

Both. Metallics lists them for attaching plywood, soft woods or composition board to metal, and for metal to metal. The 1 inch lengths in the tray are the ones to reach through sheet goods; the 1/2 inch #10s are for metal-to-metal where you only need to get through two thin plies.

No on both counts. The TEKDK1SS is listed as not Buy American compliant and not ARRA compliant, with country of origin recorded as multiple. If your federal or federally funded project requires domestic fasteners, this tray will not satisfy that clause.

They are 410 stainless steel, which is the hardenable martensitic stainless used for self-drilling screws because it can be heat treated hard enough to cut its own hole. Hardness is Rockwell C38-46. 410 gives corrosion resistance well beyond plain carbon steel, but it is not as corrosion resistant as 300 series stainless, so for marine or heavy chemical exposure spec accordingly.

The tray ships with both drivers you need, a 1/4 inch and a 5/16 inch. The screws are hex drive with a hex washer head, so a standard magnetic hex driver in those sizes in a screw gun or impact works.

Dimensions follow ASME B18.6.3-2010 and threads follow SAE J78-2013, the tapping screw thread standard for self-drilling screws. That matters on spec jobs where the submittal calls out a dimensional standard for the fastener rather than a brand.

No. Metallics states the minimum torques are the same for stainless and steel self-drill screws, with drill time of 2.5 seconds through a 1 mm plate. You can run them with the same tool setup you use for carbon steel TEKs.

The tray measures 8 inches long by 4.62 inches wide by 1.25 inches high and weighs 1.64 lbs, so it drops into a shallow van drawer or a tote slot. Pack type is a tray, minimum order is 1 each.

Metallics targets the JTEKD drill screws at the electrical, plumbing, heating and air conditioning trades, which is why the mix is heavy on #10 x 1/2 and 3/4 inch for strut, straps, hangers and enclosure work, with #8 x 1 inch and #10 x 1 inch for going through sheet goods into metal. It is a service-truck assortment, not a bulk box for one repeated length.

Yes. Metallics notes other sizes and quantities in the JTEKD self-drilling line are available by request, so if a job needs one length in volume rather than the 372 piece mixed tray, it can be sourced that way.