Metallics LCSX3485 Anchors 3/4 x 8-1/2 Hx Hd Lg Dia CS St-Gv (Box 10)

That length is the reason to pick it. At 8-1/2 inches overall you have enough shank to pass through a thick base plate, grout bed, or topping pour and still get meaningful embedment into the structural concrete below. On a thin slab, the same length becomes a problem, you need the concrete depth to take it, so check your slab thickness against the embedment you intend before committing.

The galvanized coating on this carbon steel anchor is what you want for exterior and damp interior concrete work, such as pad-mounted equipment, exterior strut and standoffs, or anchoring to foundation walls. For permanently wet, chemically aggressive, or coastal splash conditions, a stainless anchor is the better call.

Order Metallics LCSX3485. That MPN covers the 3/4 by 8-1/2 inch hex head galvanized anchor in the 10 piece box, so one order unit gets you ten anchors.

Hex head, so it sets and tightens with a socket or impact wrench, not a screwdriver bit. Plan on a 3/4 inch diameter anchor needing a proper impact wrench rather than a cordless drill driver.

Metallics catalogs it on the electrical side, and it's the size range used for anchoring strut racks, transformer and equipment pads, generator frames, and heavy standoff supports. Nothing about it is electrical-only though, it's a 3/4 inch galvanized carbon steel concrete anchor and gets used the same way by general and mechanical trades.