Metallics JTS407SSD Anchors 1/2 x 7 Wdg SS (Jar 25)

No. Wedge anchors are for solid, cured concrete only. They work by wedging a clip against the wall of a drilled hole, and hollow CMU or brick will crush or blow out instead of holding. For block walls use a sleeve anchor, a screen tube with adhesive, or a toggle-type anchor sized for the cell.

A 1/2 inch wedge anchor uses a 1/2 inch carbide hammer-drill bit, drilled to ANSI tolerance in solid concrete. Wedge anchors are nominal-diameter anchors, so the hole matches the bolt diameter and the clip expands against the hole wall as the nut is torqued. Drill the hole deeper than your required embedment so dust has somewhere to go, and blow it clean before setting.

The JTS407SSD is stainless, which is what you want for exterior slabs, parking structures, pool decks, food-processing floors, coastal work, and anywhere wash-down or standing water will attack a zinc-plated anchor. If the install is interior and dry, a plated carbon steel wedge anchor of the same 1/2 x 7 size does the same mechanical job for less.

Probably, yes. On a wedge anchor the usable length is embedment plus fixture thickness plus the nut and washer, so a 7 inch anchor in a thin base plate buries most of its length in the slab and leaves a long stud you cannot easily cut off once set. The 1/2 x 7 is the right pick when you are going through grout, timber, a thick steel base, or shimmed equipment. For a thin plate on a standard slab, step down to a shorter 1/2 inch wedge anchor.

It ships as a 25 piece jar, one part number: JTS407SSD. That quantity suits electrical and MRO shops setting strut, equipment bases, or conduit supports in concrete, where you want the stainless anchors on the shelf rather than ordering per job.