Manufacturer · Fashion & Home Accessories
Jeans button replacement does not need a sewing machine. You remove the old metal button and fit a new one made of two parts, a cap and a pin, which are riveted together with a hammer or a press. At home a jeans button repair kit, a hard surface and a hammer are enough. What matters is choosing the same diameter, a pin of the right length, and reinforcing the fabric if the hole has stretched.
When you need a jeans button replacement
The jeans button is the hardest-working metal part on a pair of trousers. Every time you fasten it, it takes the full pull of the waistband, and in the wash it knocks against the drum. Over time the same problems keep appearing:
- the button has fallen off and the pin is still stuck in the fabric, or lost as well;
- the cap wobbles or spins although it is a fixed model, because the rivet has loosened;
- the pin has pushed through and scratches the skin on the inside;
- the finish is worn and no longer suits the jeans;
- the hole in the denim has stretched and the button slips out of the buttonhole.
In the first four cases a new button is enough. In the last one, reinforce the fabric first, or the new button will pull out too.
What is in a jeans button repair kit
Repair kits on the market look different, but they contain the same basic parts. If you buy buttons separately, check that the cap and pin are compatible: the neck of the cap must match the diameter of the spike.
| Part | What it does | What to check |
|---|---|---|
| Cap with neck | The visible front part that goes through the buttonhole | Same diameter as the old button, fixed or rotating |
| Pin (back part with a spike) | Pierces the fabric from the inside and is riveted into the neck | Spike length suited to the waistband thickness |
| Anvil or setting tool | Holds the cap while you strike without crushing it | The recess must match the shape of the cap |
| Spare pins | For a second attempt if the first one bends | Use each pin only once |
Besides the classic pin-set buttons, there are no-sew screw-in buttons: a cap and a screw that is driven through the fabric. They are handy for a quick fix or for moving the button temporarily, but the joint is weaker than a riveted one and on heavy denim it can work loose. For jeans worn every day, a pin-set button is more reliable.
Metal button replacement for jeans: size and pin
Measure the diameter of the old cap with a ruler or calliper. On women's and men's jeans it is most often 17 mm, on men's and workwear styles 20 mm, and on skirts, kids' jeans and pockets about 14 mm. A larger button will not pass through the buttonhole and a smaller one will slip out. You will find more on sizes and types in our article on metal jeans buttons.
Pin length is the second criterion. The pin must pass through every layer of the waistband (denim, facing and interlining) and still leave enough spike to spread inside the neck. A spike that is too long bends sideways; one that is too short does not grip, and the button comes off the first time you fasten it.
Jean buttons: how to put on a new one, step by step
- Remove the old parts. If the pin is still there, cut it from the inside with side cutters or pull it out with pliers. Details are in our guide on how to remove metal buttons.
- Check the hole. If it is larger than the spike, reinforce the fabric (see below) or choose a spot 2–3 mm to the side, still within the waistband.
- Pierce the fabric. Make a small hole from the inside out with an awl. Do not cut the fabric; the spike should pass through tightly.
- Insert the pin from the inside so that the spike comes out on the right side.
- Place the cap on the spike and set the whole thing on the anvil, cap side down.
- Strike with a hammer two or three times, straight and firmly, on the pin. Work on a hard surface such as concrete, metal or a thick board, not on a chipboard table.
- Check the result. The cap must not wobble and the spike must not be visible. Fasten and unfasten a few times.
If the hole in the fabric has stretched
Fuse a small piece of iron-on interfacing or a denim patch on the inside and stitch around the edges. Pierce the new hole through the reinforced area. The spike then has a firm base and the button will not pull out again. If the waistband is torn, leave the repair to a tailor.
Jeans button extender and fixes for loose jeans
A jeans button extender is a small metal or plastic tab with a button on one end and a buttonhole or hook on the other. It fastens onto the jeans button and adds a few centimetres to the waist, which is useful after the holidays, during pregnancy, or with jeans that have shrunk in the wash.
With loose jeans the problem is the opposite. Your options are:
- move the button 1–2 cm inwards: fit the new button following the steps above and reinforce the old hole from the inside;
- use a removable, adjustable no-sew pin that tightens the waist temporarily;
- add an inner elastic or two small darts at the back if the difference is large.
A moved button must not pull the fly sideways, so check that the zip still closes freely.
Common mistakes in jeans button replacement
- a cap with a different diameter from the buttonhole;
- reusing an old pin that has already been flattened;
- striking on a soft surface, so the cap gets crushed and the spike does not set;
- a button in a different colour from the rivets on the pockets, which shows straight away;
- fitting into torn fabric without reinforcement.
For brands and garment factories: spare buttons and in-line repairs
If you make jeans, it is good practice to add a spare button in the same finish to every garment, and to keep a stock of caps and pins from the same batch in the factory. That way corrections and returns never cause a colour mismatch. Polkom is a manufacturer of jeans buttons: fixed, rotating, open-cap and stainless steel models in sizes from 14 to 20 mm, with your logo. All our metal accessories are nickel free, including finishes in a nickel colour. We send samples for testing on your denim and can also take care of attaching them. For a quote and samples, contact us.
