A group of closely sewn stitchs (back and forth from side to side a la zig zag) that is used to tack a belt loop or similar item in place. This is not a basting stitch and should be repeated several t [..]

a concentrated group of stitches used to reinforce an area of a garment

A short reinforcement of threads used on parts of a garment or project that are especially stressed, such as belt loops. Also known as a tack.

A close series of stitches crossing a piece of cloth at a stress point (like pocket corners and belt loops) to strengthen the fabric and minimize tearing. Higher end neckties also use a bar tack to reinforce the slip stitch. Bar tacks can feature a pattern of zig-zag stitches when done by a machine or whip stitches when done by hand.

>Group of stitches used to reinforce specific areas on a garment.

A bar tack is a very short, concentrated zigzag stitch used to reinforce stress points such as buttonholes and pocket corners.