Metallics JTS312SS Anchors 3/8 X 3-3/4 Wedge Ancr SS (Jar 50)

A 3/8 inch wedge anchor is drilled with a 3/8 inch carbide-tipped masonry bit, since wedge anchors are nominal-diameter matched to the bit. The JTS312SS is a 3/8 x 3-3/4 inch anchor, so drill the hole deeper than your intended embedment to leave room for dust and the anchor tip, blow or vacuum the hole clean, then drive the anchor through the fixture and tighten the nut to expand the clip against the concrete.

The overall anchor length is 3-3/4 inches, and whatever is not embedded in the concrete is your available grip plus nut and washer. With a typical 3/8 inch wedge anchor embedment of around 2-1/2 inches, that leaves roughly an inch for the fixture, washer and nut. If you are bolting through a thicker base plate or a shim stack, step up to a longer 3/8 inch anchor rather than reducing embedment.

Stainless steel, which is why they get specified for exterior slabs, loading docks, pool decks, parking structures and wash-down areas where a plated carbon steel anchor would rust and stain the concrete. Stainless also avoids galvanic issues when you are fastening stainless or aluminum fixtures.

No. Wedge anchors, including the 3/8 x 3-3/4 stainless JTS312SS, only work in solid poured concrete, because the expansion clip needs solid material around the full embedment to grip. For hollow CMU or brick use a sleeve anchor, a toggle-style masonry anchor, or an adhesive anchor with a screen tube instead.

Fifty anchors per jar, packed in a jar rather than a box, which is the format most electrical and MRO crews keep on the van for strut, conduit support and equipment mounting. Order by the jar for a job quantity of 3/8 x 3-3/4 stainless wedge anchors.

Wedge anchors ship as a complete assembly: threaded stud, expansion clip, nut and washer already on the anchor. Nothing additional is needed to set the 3/8 x 3-3/4 stainless version beyond a 3/8 inch masonry bit, a hammer drill and a wrench.

Yes, that is the common electrical use for this size. The 3/8 x 3-3/4 stainless anchor is cataloged as an electrical fastener and suits Unistrut-type channel, conduit clamps, disconnect and panel backing, and equipment feet on concrete. For overhead work in cracked or seismic zones, check that your spec calls for a wedge anchor and not a screw anchor or adhesive anchor.

JTS312SS is the Metallics part number, covering the 3/8 inch diameter by 3-3/4 inch stainless steel wedge anchor supplied 50 to a jar. Use that number when matching a submittal or reordering.

No. Once the nut is tightened and the clip expands, a wedge anchor is permanent. You can back the nut off and drive the stud below the surface, then patch, but the anchor body stays in the concrete and cannot be reused. Plan hole locations before setting the 3/8 x 3-3/4 stainless anchors.