Metallics LCS3485SS Anchors 3/4 x 8-1/2 Hx Hd Lg Dia CS SS (Box 10)

For a 3/4 inch diameter anchor the hole is drilled with a 3/4 inch carbide bit, and the hole depth needs to exceed the embedment you're setting so debris has somewhere to go. Work out embedment first: subtract the fixture thickness, any shim or standoff, plus the washer and nut from the 8-1/2 inch overall length, and what remains goes into the concrete.

That's the typical use. It's a 3/4 inch hex head anchor catalogued by Metallics as electrical fastening hardware, so it's the size range used for anchoring equipment stands, transformer pads, strut framing bases and similar floor-mounted gear. The hex head means you set it with a socket or impact wrench rather than a driver bit.

It's a hex head anchor, meaning the head is formed on the bolt itself, so there's no nut and washer to add the way there would be with a wedge anchor or a threaded rod. You drive it with a socket on the hex head and the head bears directly on the fixture.

No. The 3/4 x 8-1/2 hex head anchor is sold as a boxed quantity of 10, so 10 pieces is the smallest increment. For a four-bolt equipment base that leaves spares, which is worth having at that diameter since a hole drilled off-location usually means setting a fresh anchor nearby.

Order it as Metallics LCS3485SS. That single part number covers the 3/4 inch by 8-1/2 inch hex head anchor in the 10-piece box; there are no finish or length options to specify underneath it.