Metallics JSHTB34 Bolts 1/2-13 X 2-1/2 Hx Tap Blt SS (Jar 50)

Yes. A hex tap bolt is fully threaded, which is why Metallics lists it for complete thread engagement applications. The JSHTB34 is a 1/2-13 bolt, 13 threads per inch, right hand thread, so the whole 2-1/2 inch length engages a tapped hole, nut or strut channel nut. If you need an unthreaded shank under the head for shear in a bolted joint, a hex cap screw is the part to use instead.

It is 18-8 stainless steel, the standard austenitic grade used for corrosion resistance in wet and outdoor work. That makes it suitable for exterior conduit supports, mechanical rooms, kitchens and pool areas where plated steel would rust. For chloride-heavy coastal or pool chemical exposure, 316 stainless is the step up.

No. The JSHTB34 is listed as not Buy American compliant and not ARRA compliant, with country of origin shown as multiple. For federally funded work carrying domestic sourcing requirements, you need a domestically produced fastener instead.

Head width across flats is listed at 0.725 to 0.750 inch, so a 3/4 inch socket or wrench is the one to grab. Across corners the head measures 0.826 to 0.866 inch, worth knowing if you are working inside a tight channel or against an obstruction.

It ships as a jar of 50, and 50 each is the order minimum, so the jar is the smallest buying unit. Metallics notes other sizes and quantities are available by request if 1/2-13 x 2-1/2 is not the length you need.

Threads are made to IFI-199 (2014), right hand, 13 threads per inch on the 1/2 inch diameter. That is standard UNC, so it mates with any 1/2-13 nut, strut nut or tapped hole on the job.

Metallics lists it for electrical, plumbing, heating and air conditioning work. In practice that is hanging strut and trapeze racks, bolting pipe clamps and conduit supports, and anchoring equipment feet where the bolt threads into a nut or tapped hole and full thread engagement is wanted.