Metallics FSCS1 Anchor 3/16 x 1-1/4 Flat Hd Square Drive Concrete Screw Nail Point USA (100pcs)

At 1-1/4 inches overall, the FSCS1 is sized for thin attachments, think a one-hole strap, a device box ear, a conduit clamp or a mounting plate against masonry. Subtract the thickness of whatever you are fastening from the 1-1/4 inches to see what is left for embedment; if you are going through anything thick, such as furring or a thicker bracket, step up to a longer concrete screw instead.

The nail point is a sharpened lead-in tip that helps the screw find and start in the drilled hole rather than wandering, which matters when you are working overhead or one-handed on block. It does not drill its own hole, you still pre-drill masonry before driving.

The FSCS1 has a flat head with a square drive, so it seats down flush or near-flush against the part you are fastening instead of standing proud like a hex washer head. Use it where a hex head would interfere, under a plate, behind a cover, or where a raised head would keep something from sitting tight. If you want the clamping surface of a washer head and clearance is not an issue, a hex head concrete screw is the better pick.

Each box of FSCS1 holds 100 screws, so one box covers a decent run of strap or box mounting without reordering mid-job. The part number to specify is Metallics FSCS1.

Yes, the FSCS1 3/16 x 1-1/4 concrete screw is USA made, which is what institutional and government buyers working under domestic-sourcing requirements usually need to document.