Metallics J3733F Anchors 3/8 X 5 Fh Slv Ancr St-zn (Jar 50)

Sleeve anchors are drilled at the anchor's nominal diameter, so a 3/8 inch anchor like the J3733F goes into a 3/8 inch hole drilled with a carbide bit. Drill deeper than the embedment you need so dust has somewhere to go, then tap the anchor through the fixture and into the hole before tightening the head to expand the sleeve.

50 pieces per jar. Metallics packs these in a jar rather than a box, which is the format most electricians and maintenance crews want on a cart or in a gang box for repeat strut, conduit strap and box mounting work.

A flat head sleeve anchor like the J3733F is the one to use when you want a low profile head that sits down tight against the fixture instead of a protruding hex nut. If you need a wrench driven head that can be torqued hard, or you want to be able to remove and reinstall the nut repeatedly, a hex nut sleeve anchor or a wedge anchor is the better pick. Sleeve anchors are also the usual answer in hollow block and brick, where a wedge anchor is not appropriate.

The J3733F is zinc plated carbon steel, which is a dry interior finish. It holds up in conditioned indoor areas, but in exterior work, wash down areas, parking structures or anywhere exposed to moisture and chlorides you want a stainless sleeve anchor instead. Zinc plating will bloom and rust in those conditions.

Yes, that is the common use. It is catalogued on the electrical side as an anchor for fastener work, and a 3/8 x 5 inch sleeve anchor is sized for strut channel, conduit straps, pipe clamps and box mounting into concrete or masonry. Match the embedment to your load and keep the 5 inch overall length in mind when the fixture being fastened is thick.