Metallics M2202SD Anchors 5/16 x 2-1/4 Hx Hd CS Carbon St (Jar 100)

Drill 5/16 inch. The M2202SD is a 5/16 x 2-1/4 inch hex head carbon steel concrete screw anchor, and screw anchors of this style use a hole the same nominal diameter as the anchor, drilled slightly deeper than the embedment so dust can clear. With a 2-1/4 inch anchor length, subtract the thickness of what you are fastening to get your actual embedment into the concrete.

It is carbon steel, which is a dry interior fastener. Carbon steel will corrode in exterior, wet, or washdown locations, so for rooftop conduit supports, parking structures, exterior lighting, or coastal work, specify a stainless anchor instead. Indoor electrical rooms, finished ceilings, and dry mechanical spaces are where this one belongs.

The M2202SD is a 5/16 x 2-1/4 hex head carbon steel anchor for masonry base material. Hex head screw anchors of this type are driven directly into a predrilled hole in concrete, and in hollow block you need to land the anchor in the solid web or face shell, not the void, or it will spin out. For hollow-wall or drywall work, a toggle or hollow-wall anchor is the right part instead.

No special setting tool. The hex head means you drive it with an impact wrench or impact driver and a hex socket after drilling the hole, so there is no setting punch, no expansion sleeve to collapse, and no epoxy. You do need a hammer drill with a carbide bit to make the 5/16 inch hole in the concrete.

It backs out. Because this is a hex head screw anchor rather than a wedge or drop-in expansion anchor, you can reverse it out of the hole with the same socket, which helps on temporary bracing or when a layout has to shift. Reusing it in the same hole is not advised, since the threads cut into the concrete on first install and will not grip the same way twice.

100 pieces per jar. The M2202SD ships as a jar of 100 of the 5/16 x 2-1/4 hex head anchors, which is the working quantity for a strut, conduit strap, or panel-mounting run rather than a single fix.

M2202SD is the Metallics manufacturer part number, covering the 5/16 x 2-1/4 inch hex head carbon steel anchor supplied in a 100 piece jar. That single number is all you need on a purchase order or a counter request.