Finding a nail in the tyre is one of the most common tyre problems Australian drivers face, and the good news is that many nails are repairable. Whether yours is depends on two things: where the nail went in, and how big the hole is. Get those right and a repair is quick and cheap. Get them wrong and the only safe option is a new tyre.
Should you pull the nail out?
No — leave it in. While the nail is in place it partly plugs the hole and slows the air loss, which can be the difference between a slow leak you can drive on and a flat on the shoulder of the freeway. Pulling it out tells you nothing useful and usually makes the leak worse. Mark the spot with chalk or a texta if you like, then get to a fitter.
Is a nail in the tyre repairable?
A puncture can be repaired in Australia only when it meets all of the accepted conditions. Industry guidance from the NRMA and major tyre makers is consistent here:
- The hole is no more than 6mm in diameter (for a standard passenger tyre).
- It is in the central tread — roughly the middle portion of the tread face — not the shoulder or sidewall.
- The penetration angle isn’t too extreme (less than about 45° from vertical).
- The tyre still has legal tread and no separate damage from running it flat.
Miss any of those and the tyre must be replaced. A nail through the shoulder or sidewall is never repairable, no matter how small — those areas flex and carry load, so a repair there won’t hold.
Repairable or replace: the quick test
| Situation | Verdict |
|---|---|
| Nail in central tread, hole ≤6mm | Repairable |
| Nail in the shoulder or sidewall | Replace |
| Hole larger than 6mm / big gash | Replace |
| Driven a long way flat (crush damage inside) | Replace |
| Second puncture close to an old repair | Usually replace |
For the exact zones and the rules behind them, see where on a tyre can legally be repaired in Australia.
Can you drive with a nail in your tyre?
If the tyre is holding pressure and losing air only slowly, you can usually drive gently to a tyre shop — keep the speed moderate, avoid the freeway if you can, and check the pressure before you set off. What you must not do is drive on a tyre that is going soft or flat: the NRMA warns never to drive on a severely deflated tyre, because the flexing generates heat, forces air out faster and can wreck the casing beyond repair, turning a cheap fix into a new tyre. If it won’t hold air, fit the spare and check its pressure first — the spare tyre pressure everyone forgets is a common trap.
If the leak is so slow you’re only topping up every week or two, you may not even be sure a nail is the cause. Our slow puncture diagnosis guide helps you track down a leak you can’t see.
How a proper nail repair is done
A correct repair is not a plug jammed in from the outside. The tyre is removed from the rim so the inside can be inspected for hidden damage, then a combination repair — a plug through the hole plus a patch vulcanised over the inner liner — seals both the hole and the airtight inner surface. This is the method aligned with Australian Standard AS 1973 and recommended by the major brands. External-only “string” plugs are treated as a temporary, get-you-home fix, not a permanent repair.
To understand the trade-offs between repair types, see tyre plugs vs patches vs internal repairs. If you carry an emergency sealant can, know that it has downsides too — do tyre inflator sealants ruin the tyre? explains when to use one and when not to.
Repair or replace: the cost reality
A proper puncture repair is far cheaper than a new tyre, so if your nail meets the repair conditions, fixing it is the sensible call — see how much a puncture repair costs in Australia. But don’t let cost push you into repairing something that shouldn’t be. If the tyre is also near the 1.5mm legal minimum tread, or the damage is borderline, spending on a repair is throwing good money after bad. A bubble from the same event is a straight replace — see is a sidewall bubble repairable?
Frequently asked questions
How long can I drive with a nail in my tyre?
As short a distance as possible, and only while it’s holding pressure. Drive gently straight to a fitter. The longer you run it, the greater the chance the leak worsens or the casing is damaged.
Can a nail in the tread always be fixed?
Not always — it also has to be 6mm or smaller and not too angled, with no internal damage from running flat. Central tread plus small hole is the winning combination.
Is a screw the same as a nail?
Yes, the same rules apply. Leave it in, note the location, and let a fitter assess it. Screws sometimes seal better temporarily because of the thread, but the repair decision is identical.
Why can’t a shoulder puncture be repaired?
The shoulder flexes heavily and sits at the edge of the repairable zone, so a repair there is not rated to hold. Only the central tread qualifies.
Bottom line: Leave the nail in, keep your speed and distance low, and get the tyre demounted and assessed. A hole of 6mm or less in the central tread is repairable with a plug-and-patch; anything in the shoulder or sidewall, or bigger than 6mm, means a new tyre.
Repair conditions and figures cited are current guidance as of 2026 and can change. Have every puncture assessed by a qualified tyre fitter and confirm any legal requirements with your state road authority.
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