Metallics MN1TM Nails 1" Heat Temp Flt Msry Nails Steel (Jar 370)

That is what it is built for. The MN1TM is a heat tempered fluted masonry nail in steel, intended to penetrate concrete and other masonry products. The fluted shank and the heat treatment are what let it go into cured masonry without bending the way a common nail would. Field use covers electrical, plumbing, heating and air conditioning work into concrete and masonry.

No. The MN1TM is not Buy American compliant and is not ARRA compliant, and country of origin is listed as multiple. If you are on a federally funded project with domestic sourcing language in the spec, this nail will not satisfy it and you need a domestically produced fastener instead.

They ship in a jar of 370 nails, and the jar is the pack type Metallics sells this item in. Order minimum is 1 each, so a single jar is a valid order. Jar weight is listed at 2.6 lbs.

The MN1TM is the 1 inch nail. Metallics makes the fluted masonry nail in other lengths and other pack quantities, and those can be requested rather than ordered off the shelf listing. If your detail calls for deeper embedment, ask for the longer length by nail length rather than substituting a common or box nail, which will not take masonry.

A fluted masonry nail like the MN1TM is a drive fastener: you hammer it straight into the concrete or block, no pilot hole, no plug. That makes it fast for high-count work such as running conduit straps or securing cable clips across a slab or wall. It is not removable or adjustable, and it is not the fastener for anything you expect to take load in tension or to be unbolted later. For that, use a screw anchor or an expansion anchor and accept the drilling time. For hollow block cells where there is nothing solid to bite, a nail is the wrong answer as well.

The MN1TM is plain steel with a heat tempered shank, no corrosion coating called out. Keep it to dry interior masonry work. For exterior walls, below-grade, or wet and humid areas such as pool rooms and wash-down spaces, specify a coated or stainless masonry fastener so you do not get rust staining on the face of the concrete and lose holding power over time.

Electrical, plumbing, heating and air conditioning crews are the stated users, fastening into concrete and masonry products. In practice that means conduit and pipe straps, cable clips, pull box and device box backing, and hanger brackets going onto a concrete slab, block wall or brick. Metallics lists it on the electrical side of the catalog, but the nail itself is not trade specific.