Metallics JHW14134 Anchors 1/4 X 1-3/4 Hmmr Drv Wedge Zn-C (Jar 50)

A 1/4 inch wedge anchor uses a 1/4 inch carbide bit in concrete, since the anchor diameter and the drill size match on wedge anchors. Drill deeper than the embedment you want so dust clears, blow out the hole, then drive the Metallics JHW14134 anchor through the fixture with a hammer until the nut seats and tighten.

Overall length is 1-3/4 inches, so the fixture thickness plus your embedment has to fit inside that. In practice a 1/4 inch wedge anchor needs roughly an inch or more of embedment in concrete, which leaves this length suited to thin attachments like strut, conduit clamps, pipe straps, and light brackets. For a thicker base plate, step up to a longer 1/4 inch anchor.

No. A wedge anchor needs solid base material, so it is for poured concrete only. Hollow block, brick, and drywall will not let the clip expand against solid material, and the anchor can pull straight back out. Use a sleeve anchor or a toggle in those bases instead.

The JHW14134 is zinc plated carbon steel, which is a dry interior finish. It will hold fine in a conditioned building, parking structure soffit, or mechanical room, but outdoors, in wash-down areas, or anywhere exposed to chloride it will corrode. For those locations specify a stainless wedge anchor in the same 1/4 x 1-3/4 size.

A hammer drive wedge anchor like the JHW14134 goes in through the fixture and is driven in place, so the fixture has to be positioned before the anchor is set and it stays permanent. A drop-in anchor is set flush in the concrete first and takes a threaded bolt, so you can remove and re-hang the fixture later. Pick the wedge for fast one-time hangs, the drop-in where the equipment will come off again.

Fifty anchors per jar, packed as a jar rather than a box. That is a practical count for an electrical rough-in, strut runs, conduit hangers, or a panel and device backing job where you want one container on the cart instead of a loose handful.

Order Metallics MPN JHW14134. That number covers the 1/4 x 1-3/4 inch zinc plated hammer drive wedge anchor in the 50 count jar, and it is a single configuration, so there is no finish or length option to pick.