Do not sew over pins — they will break your needle, damage your machine, and possibly injure you
Sewing over a pin is one of the fastest ways to ruin a needle and put your sewing machine out of commission. When the needle hits a pin head-on, the impact bends or shatters the needle. A broken needle can then strike the presser foot, the bobbin case, or the machine's internal timing mechanisms, causing damage that costs money to repair. Even if the needle survives the first hit, a bent needle will skip stitches, pull thread, and eventually break anyway — usually at the worst moment in a project.
Beyond the machine, a shattered needle can fly out of the needle clamp and cut your fingers or face. This is rare but serious. The safer habit is to remove every pin before the presser foot reaches it, even if you are sewing slowly or think you can "just push through."
Key Takeaways
- A needle striking a pin will bend or shatter, breaking the needle and potentially damaging the machine's internal parts.
- Bent needles skip stitches, pull thread, and create uneven seams even if they do not break when ready.
- Removing pins as you sew takes three seconds per pin and prevents needle breakage, machine damage, and injury.
- If you do hit a pin, stop sewing when ready, raise the presser foot, and inspect the needle for bends or cracks before continuing.
- A sewing machine needle costs $1 to $3, but repairs to internal damage from a broken needle can cost $75 to $200.
What happens inside the machine when a needle hits a pin
A sewing machine needle moves up and down at high speed — between 800 and 1200 times per minute on most home machines. When the needle is in the down position and moving through fabric, it has momentum. If it strikes a pin, that momentum does not stop; instead, it transfers into the pin and the needle. The needle, which is made of hardened steel but is thin and brittle, bends or snaps.
A bent needle no longer moves in a straight line. On the next stitch, it may hit the presser foot, the throat plate (the metal plate around the needle hole), or the bobbin case underneath. Any of these collisions can dent, crack, or misalign these parts. Misalignment of the bobbin case is especially costly because it controls the timing of the bobbin thread — if it shifts even slightly, the machine will not form stitches correctly and may require professional adjustment.
Even a slightly bent needle that does not break will cause problems. It will skip stitches because it cannot penetrate the fabric at the correct angle. It will pull and shred thread. It may create holes in delicate fabrics or snag knits. By the time you notice the problem, you may have sewn several inches of bad stitches that need to be ripped out.
How to remove pins safely while sewing
The standard method is to sew up to the pin, stop with the needle in the fabric (not in the pin), raise the presser foot, pull the pin straight out, lower the presser foot, and continue sewing. This takes about three seconds per pin and is the only safe approach.
Stop before the needle reaches the pin — do not try to sew right up to it and remove it at the last second. Use the hand wheel (the large wheel on the right side of the machine) to move the needle down into the fabric if you need to position it precisely. Once the needle is in the fabric and the presser foot is raised, the fabric cannot move, so you can safely remove the pin without shifting your seam.
If you are sewing a long seam with many pins, remove each one as you approach it rather than trying to remember which ones you have passed. It is straightforward to miss one, especially if you are sewing quickly or if the pins are close together.
Why pinning is still worth doing despite the extra steps
Removing pins as you sew takes time, but pinning itself saves time and prevents mistakes. Pins hold fabric layers in place so they do not shift, bunch, or slip. Without pins, you have to use your hands to guide the fabric, which is slower and less accurate. Pinned seams are straighter, corners are sharper, and you waste less fabric on mistakes.
The alternative to pinning is using a spray fabric adhesive or clips, but these have their own trade-offs. Spray adhesive can gum up your needle and presser foot, and clips slow you down just as much as pins. For most sewing, pinning and removing pins as you go is still the fastest and most reliable method.
What to do if you hit a pin and break a needle
Stop sewing when ready. Raise the presser foot and the needle to the highest position. Turn off the machine. Do not try to continue sewing or move the fabric — a broken needle can have sharp edges that will cut your fingers.
Remove the broken needle by loosening the needle clamp (the small screw or lever that holds the needle in place). Look inside the needle area with a flashlight to see if any pieces of the needle are stuck in the throat plate or bobbin case. If you see fragments, do not try to remove them yourself — take the machine to a repair shop. If the area looks clear, install a new needle, thread the machine, and test it on scrap fabric before returning to your project.
If the machine makes unusual noises, skips stitches, or the needle hits the presser foot or throat plate after you install a new needle, stop when ready. The machine may have internal damage that needs professional repair. Continuing to sew can make the damage worse.
Choosing the right needle size and type to reduce breakage
Using the correct needle for your fabric reduces the chance of breakage from other causes. A needle that is too small for thick fabric has to work harder and is more likely to bend. A needle that is too large for delicate fabric can create holes and may catch on threads.
Universal needles (size 80/12 or 90/14) work for most cotton and cotton blends. Use a size 70/10 or 80/12 for lightweight fabrics like silk or linen. Use a size 100/16 or 110/18 for heavy fabrics like denim or canvas. Specialty needles exist for knits, stretch fabrics, and topstitching, but universal needles are a good starting point if you are new to sewing.
Replace your needle every 6 to 8 hours of sewing, or sooner if you notice skipped stitches or pulled thread. A dull needle is more likely to bend or break than a sharp one. Needles are inexpensive, so replacing them often is cheaper than repairing machine damage.
Frequently Asked Questions
Can I sew over a pin if I am going very slowly?
No. Speed does not matter — the problem is the collision itself. Even at slow speed, the needle will bend or break when it hits a pin. Slow sewing might reduce the force slightly, but it is not enough to prevent damage. Remove the pin before the needle reaches it.
What if the pin is small or hidden under the fabric?
Small pins are actually more dangerous because they are easier to miss and harder to see. Before you start sewing, run your finger along the seam to feel for pins. If a pin is hidden, gently lift the fabric to expose it, then remove it. Taking five extra seconds is worth avoiding a broken needle.
Is it okay to sew over a pin if my needle is thick or industrial-grade?
No. Even industrial needles will bend or break when they hit a pin. The problem is not the needle's strength — it is the sudden impact and the pin's hardness. All needles are designed to move through fabric, not to collide with metal objects. Remove pins before sewing over them, regardless of needle type.
Will my machine be damaged if I hit a pin once?
Probably not, but you cannot know for certain without testing. After hitting a pin, install a new needle and test the machine on scrap fabric. If it sews normally with even stitches and no unusual sounds, the machine is likely fine. If you notice skipped stitches, pulling, or noise, the machine may have internal damage and should be serviced.
What is the fastest way to remove many pins from a seam?
Sew up to each pin, stop, raise the presser foot, pull the pin straight out, and lower the presser foot. This rhythm becomes automatic with practice and takes only a few seconds per pin. Some sewers use a pin cushion or magnetic pin holder next to the machine to drop pins into as they remove them, which keeps the workspace tidy.