DEWALT 04033-PWR Toggles Mh 1/8 X 3

It's a 1/8 inch diameter machine screw toggle with a 3 inch fastener length. The 1/8 inch screw diameter sets the load class (light duty anchoring), and the 3 inch length is what gives you enough reach to pass through thick wall build-ups and still thread the toggle nut on the back side. Remember part of that 3 inches is consumed by the wall itself, so the thicker the wall, the less fixture thickness you can clamp.

The 04033-PWR is rated by DEWALT for light duty anchoring, which covers things like device boxes, small conduit straps, raceway, signage, and light fixtures. For heavier loads, grab-bar mounting, or anything with a safety consequence, step up to a larger diameter toggle or anchor into structure instead. The 1/8 inch screw is the governing limit on how much load the assembly will take.

The toggle is steel with a zinc finish. Zinc plating gives you ordinary indoor corrosion protection, which is fine for conditioned interiors and dry utility spaces. It is not a stainless or hot dip galvanized anchor, so for exterior work, coastal exposure, or chronically wet locations you want a stainless toggle or a different anchor type.

The 04033-PWR ships as a complete machine screw toggle unit, screw plus spring wing, sold as an individual piece rather than a multi-pack set. If you are anchoring a run of boxes or straps, order the count you need per hole. Each piece weighs 0.017 lbs.

Use a toggle like the 04033-PWR when the fixture will carry real weight or see pulling and vibration, because the spring wing spreads the load across the back face of the board instead of relying on threads cut into gypsum. A self-drilling plastic anchor is faster and needs no cavity clearance, which makes it the better pick for very light items and for walls where something sits right behind the board. The tradeoff with a toggle is that you drill a hole large enough for the folded wings to pass, and if you later remove the screw the wing drops into the cavity.

Yes, within reason. DEWALT states it works in a variety of base materials, so hollow concrete block, plaster, hollow core doors, and panel products are all in play as long as there is an open cavity behind for the wings to deploy and the total material thickness stays at or under 2-1/2 inches. It is not an anchor for solid concrete or solid masonry; those need a mechanical or adhesive anchor.

The part is DEWALT 04033-PWR, a 1/8 x 3 machine screw toggle. Country of origin is Vietnam. That MPN is what to quote for reorders so you get the same diameter and length rather than an adjacent size in the same family.