Metallics CSH30SS Anchors 1/4 X 2-1/4 Hwh 5/16Hd Sl Conc SS (Jar 100)

Yes. The CSH30SS is the stainless steel variant, which is why electricians specify it for exterior strut, rooftop conduit supports, parking structures, and wash-down areas where a plated carbon steel concrete screw would rust out. For dry interior work the plain-finish version is the usual choice.

The head is a slotted hex washer head taking a 5/16 inch socket, so an impact driver or drill with a 5/16 nut setter drives them. No sleeve, cone, or setting tool is needed, unlike a wedge or drop-in anchor. What you do need separately is a carbide hammer-drill bit in the matching 1/4 inch size, since no bit is supplied with the jar.

For light and medium duty attachments like strut, conduit clamps, junction boxes, and device backing, a concrete screw such as the 1/4 x 2-1/4 CSH30SS is the faster call: drill, drive, done, and it can be backed out and relocated if the layout changes. A wedge anchor is the choice when you need higher tension capacity in an anchored-in-place connection that will never come out, such as equipment bases or seismic bracing. Screws also sit closer to an edge without the expansion force that can spall thin or edge concrete.

A 1/4 inch concrete screw of this type is a masonry screw and is commonly driven into poured concrete, grout-filled CMU, and solid brick. Hollow block webs and mortar joints are the weak spots, so land in the solid portion of the unit. In poured concrete it is the straightforward application this stainless hex head screw is made for.

They ship 100 to a jar, which is the standard put-up for this concrete screw. The jar packaging keeps them together on a cart or in a gang box rather than loose in a bag.