Metallics TS33120SS Anchors 3/8 x 3-1/2 Wdg SS (Box 100)

A 3/8 inch wedge anchor is set in a 3/8 inch diameter hole drilled with a carbide bit, since wedge anchors are sized by hole diameter rather than thread diameter. The TS33120SS is 3/8 x 3-1/2 inches, so drill the hole deeper than your intended embedment to leave room for dust and to let the anchor seat fully.

Yes, the TS33120SS is a stainless steel wedge anchor, which is why it gets specified for exterior concrete, wet areas, pool decks, coastal work, and anywhere a zinc plated carbon steel anchor would rust and stain the slab. Same geometry as a plated anchor, 3/8 x 3-1/2 inches, just the corrosion resistant version.

Usable thickness is the 3-1/2 inch overall length minus the embedment you put in the concrete, minus the nut and washer. With a 3/8 inch wedge anchor set to a typical embedment you are left with roughly an inch to an inch and a half of grip, which covers strut, unistrut, conduit clamps, equipment bases, and light angle brackets. For a thicker base plate, move up to a longer anchor in the same 3/8 inch diameter rather than reducing embedment.

No. Wedge anchors like the TS33120SS are for solid concrete only. The expansion clip needs solid material to bite into, so in hollow CMU, brick, or grout filled cells with voids, the anchor will spin or pull. For hollow block use a sleeve anchor, toggle, or a screen tube and adhesive instead.

A 3/8 inch wedge anchor carries 3/8-16 UNC threads, and the anchor ships with its own nut and washer. If you need spares or want to swap to a stainless nut to match the anchor body, order 3/8-16 hardware.

That is the common use. The 3/8 x 3-1/2 inch stainless wedge anchor is a fastener for anchoring strut channel, trapeze hangers, conduit clamps, panel backing, and junction box brackets into poured concrete decks and walls. Set it with the nut just proud of the anchor top, drive it flush, then torque the nut to expand the clip.

No. Once a wedge anchor is torqued the clip permanently expands against the concrete. You can back off the nut and remove the fixture, but the anchor body stays in the hole. If you need to clear the surface, cut or drive the stud below grade and patch. For a removable fixing in concrete, use a drop-in anchor with a machine bolt instead.

They ship 100 per box, so one box covers a full run of strut hangers or equipment pads without reordering mid job. Packaging is a box, not a bag or a bulk carton.