Lock Stitch | Sewing Term

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Learn how and why the simple lock stitch is actually a very fundamental stitch on any sewing machine. Practice on these easy projects.

Lock Stitch –


  1. a sewing-machine stitch in which two threads are locked together at small intervals

A lock stitch is actually a very fundamental stitch on any sewing machine – when the machine makes single stitches, the top and bottom threads “lock” together, keeping them secure in the fabric. If you can sew a straight stitch on your sewing machine then you are probably already sewing a lock stitch.

Stitch Stats-

  • Types – Straight stitch, Zigzag stitch, Stretch stitch
  • When – You will use a lock stitch anytime you sew up a quilt, or make an item of clothing. A straight stitch is most often used when sewing woven fabric together. Zigzag or stretch stitches are most often used when sewing knits.
  • How – On your sewing machine you will adjust the dial or switch to which lock stitch you want to use. Computerized machines have numbers you input that correspond to certain lock stitches.
  • Tools Needed – A basic sewing machine is all you need to achieve a lock stitch.

Try these tutorials to practice lock stitches.
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