Metallics TS3412D Anchors 3/4 x 12 Wdg St-zn (Box 10)

Ten anchors per box. The 3/4 x 12 size ships boxed rather than loose, so plan quantities in multiples of 10 when you're laying out anchor bolt patterns.

The TS3412D is zinc-plated carbon steel, which suits dry interior work and lightly protected exterior use. For constant wetness, coastal exposure or chemical environments, specify a stainless steel wedge anchor instead, since zinc plating is a sacrificial coating and will eventually corrode.

That depends on how deep you set it. With a wedge anchor the usable projection is the 12 inch total length minus your embedment depth, and the thread runs down from the head so you can leave the fixture thickness plus nut and washer above the surface. Buyers pick the 3/4 x 12 specifically when a shorter anchor won't clear a thick base plate, grout bed or standoff.

A wedge anchor such as the Metallics TS3412D is a one-piece stud with an expansion clip: you drill, hammer it through the fixture into the hole, and torque the nut to set it. The stud stays permanently proud of the slab. A drop-in anchor sets flush and takes a bolt you can remove and reinstall, which suits equipment that gets swapped. A sleeve anchor is the choice for hollow block or brick, where a wedge anchor should not be used. For heavy anchorage into solid concrete with a thick base plate, the 3/4 x 12 wedge is the straightforward pick.

Wedge anchors of this type ship as a complete assembly with the nut and washer on the threaded end, so no separate hardware is needed to set them. What you do need on site is a hammer drill and a 3/4 inch carbide bit to match the anchor diameter, plus a torque wrench to set them to the specified torque.