How to undo a zip tie without cutting it: push a thin, flat tool into the head to lift the small locking tab, called the pawl, off the teeth, then slide the strap back out. It takes a steady hand and a little patience, but it works on most standard nylon ties.
Before you start, know the limits. A standard zip tie is designed to lock once, and a released tie can be weaker than a new one. For anything you plan to open again, a releasable zip tie is the proper tool.
What you need
- A small flat-blade screwdriver, such as a jeweller's or electronics screwdriver
- Or a stiff pin, a needle, or the tip of a small knife (take care)
- Good light, so you can see into the head
How to undo a zip tie, step by step
- Find the pawl. Look into the head from the side the tail comes out of. You will see the strap's teeth and, pressing on them, a small flexible tab. That tab is the pawl.
- Insert the tool. Slide the tip of the screwdriver or pin between the pawl and the teeth, on the ridged side of the strap.
- Lift the pawl. Press gently so the pawl lifts clear of the teeth. Do not lever hard; the pawl is thin and can snap.
- Pull the strap back. While holding the pawl up, ease the tail back out through the head. If it catches, push the tie slightly tighter first to take the load off the pawl, then try again.
- Check the tie. Look at the pawl and teeth before reusing it (see below).
Small ties (2.5mm and 3.6mm) are fiddly because the head is tiny. Wider ties (7.6mm and up) are easier to see into but grip harder, so take the tension off the bundle before you start.
When a released zip tie is safe to reuse
Reuse it only for light, non-critical jobs, and only if:
- The pawl springs back and the tie still clicks when you pull it through.
- The teeth near the head are not flattened or chewed.
- The strap has no nicks, cracks or white stress marks.
If any of those fail, bin it and use a new tie. Ties are cheap; a slipped load is not.
What not to do
- Do not heat the head with a lighter or heat gun to soften it. It weakens the nylon and can damage what the tie is holding.
- Do not force a stainless tie. Metal zip ties lock with a ball and are not designed to be released. Cut them off with proper cutters.
- Do not reuse a released tie on anything safety-related. Fit a new one.
The better answer: releasable zip ties
Releasable zip ties have a tab on the head. Press it and the strap slides back out, with no tools and no damage, as many times as you need. Ours are 7.6mm wide with a 55kg breaking strain, in black or white, in 200mm, 300mm and 400mm lengths.
They suit:
- Switchboard and rack looms during commissioning and testing
- Christmas lights, garden ties and plants that need loosening as they grow
- Hire, event and site gear that is set up and packed down again
Common questions
Can you undo a zip tie without cutting it?
Usually, yes. Lift the pawl inside the head with a thin flat tool and slide the strap back out.
Can you reuse zip ties?
A carefully released tie can be reused for light jobs if the pawl and teeth are undamaged. For repeated use, choose releasable zip ties.
Are there zip ties you can undo?
Yes. Releasable zip ties have a release tab on the head and are made to open and close again.
How do I get a zip tie off quickly?
Cut it. Use flush cutters close to the head, cutting away from the bundle so you do not nick the cable or hose inside.
Written by the team at Zip Tie Man, an Australian zip tie supplier since 2016.
Read how to use a zip tie properly, or browse releasable zip ties.
Featured image: GeCaHu, CC BY-SA 4.0, via Wikimedia Commons (cropped).
