Metallics TS4812 Anchors 1/2 X 8-1/2 Wedge Ancr St-zn (Box 25)

No. A wedge anchor like the TS4812 is a mechanical expansion anchor for solid poured concrete only. It needs the hole walls to hold against the expanding clip, which hollow block, brick veneer, and drywall will not do. For hollow substrates use a toggle or sleeve-type anchor instead.

A 1/2 inch wedge anchor is set with a 1/2 inch carbide-tipped hammer drill bit. Wedge anchors are matched one-to-one: the bit diameter equals the anchor diameter, since the anchor body drops straight into the hole. The TS4812 measures 1/2 inch in diameter.

The TS4812 is zinc plated steel. Zinc plating handles dry indoor and lightly protected exterior conditions, but it is not a stainless or hot-dip finish, so for standing water, coastal exposure, pool decks, or chemical environments you want a stainless wedge anchor instead.

Wedge anchors such as the TS4812 are supplied as complete assemblies, anchor body with expansion clip plus the hex nut and washer on the threaded end. You do not buy nuts separately. All you need on site is a 1/2 inch hammer drill bit, a blow-out bulb or vacuum to clear the hole, a hammer, and a torque wrench to pull the anchor up.

No. Once a wedge anchor is torqued, the clip is permanently expanded against the concrete. You can back the nut off and drive the stud flush or below the surface, or cut it, but the TS4812 cannot be pulled and reused. Where you need a removable fastening, use a drop-in anchor or an internally threaded insert with a machine bolt.

The TS4812 is a 1/2 inch zinc plated steel wedge anchor carried for electrical work, and 1/2 inch wedge anchors are a common choice for trapeze and strut supports in solid concrete decks. One caution: many jurisdictions and fire sprinkler or seismic requirements restrict overhead expansion anchors to products with a specific listing for that use, so match the anchor to what the drawing or inspector calls for on overhead applications.