Guides & Advice
How to Put a Buckle on a Belt: Snap, Screw and Ratchet Buckles
Sep
How to put a buckle on a belt? It depends on how the buckle is held to the strap: by snaps, by screws, by the clamp of a ratchet buckle, or by stitching. The first three come apart in a few minutes with a screwdriver or even bare hands; the last one means unpicking a seam and sewing it back. Once the old buckle is off, the new one goes on in reverse order, with two checks before you close the strap again: the buckle width has to match the strap width, and the keeper loop has to end up on the body side. This guide covers how to read the mounting, remove the old buckle, fit the new one, and shorten a belt that is too long while you are at it. If the strap itself is worn out, our full grain leather belts for men come with pin, ratchet and reversible buckles.
Read how the buckle is attached before you put a buckle on a belt
Turn the belt over and look at the end folded around the buckle. Four mountings exist, and each comes apart differently. The table sums them up; the buckle type itself is read from the front.
| What you see on the back | Mounting | Removable? | Tool |
|---|---|---|---|
| One or two round snaps | Snap-on fold | Yes, by hand | None |
| One or two small screws (Chicago screws) | Screwed fold | Yes | Flat or Phillips screwdriver |
| A metal plate gripping the strap | Ratchet buckle clamp | Yes, often a screw under the plate | Screwdriver, sometimes pliers |
| Stitching, no snap or screw | Sewn fold | Yes, but it has to be resewn | Seam ripper, awl, waxed thread |
On the front you will find one of four buckle types: the classic pin buckle, whose prong goes through a hole; the ratchet or automatic buckle, which grips a toothed track glued under the strap and needs no holes at all; the swivel buckle of a reversible belt; and the plate buckle, screwed or hooked on, common on western belts. Before taking anything apart, measure the strap width: a buckle made for 1 3/8 inch (3.5 cm) will not close on a 1 1/2 inch (3.8 cm) strap, and the wrong millimeter causes more trouble than the wrong style. Our guide to belt sizes explains how length is measured from the buckle fold to the middle hole.
Remove the old buckle
On a snap-on fold, pinch the fold between thumb and index finger and pull sharply: the snaps pop, the strap unfolds and the buckle slides out of its leather loop. On a screwed fold, unscrew without forcing and keep the screws in a dish. They are almost always short Chicago screws with a fine thread that you will not find at the hardware store. With the fold open, the buckle comes off the same way.
On a ratchet buckle, the strap is held in a clamp at the back of the housing. Lift the lever or undo the screw that holds it, then pull the strap out toward you. This is the mounting that lets you shorten the belt: you cut the excess on the buckle end, never on the tip end, so you keep the toothed track and the finished tip. Our leather ratchet belt for men is sold this way, to be cut to your waist. On a sewn fold, finally, cut the stitches with a seam ripper held flat against the leather, without nicking the strap.
Put the new buckle on the strap
Fitting follows the reverse order, with three things to watch.
- Buckle direction. A man’s belt is worn with the tip passing to the left, buckle facing out. Lay the buckle flat, front side up, and slide the strap end underneath it.
- Prong in its slot. On a pin buckle, the metal prong has to pass through the oblong slot cut in the leather before the fold closes. Skip this and the prong ends up trapped under the fold.
- The keeper. The keeper, the small leather loop that holds the tail of the strap, goes onto the strap before you close the fold, otherwise you start over.
Then close the snaps or tighten the screws, and pull firmly on the buckle to make sure nothing shifts. On a pin buckle belt such as our men’s pin buckle belt for jeans, check that the prong swings freely in its slot after tightening: a screw driven too hard can pinch the leather and stiffen it.
Ratchet buckles: what changes
A ratchet buckle does not go on just any strap. It needs a toothed track, glued or stitched under the last twelve inches or so of the leather: that is what the pawl catches, notch by notch, which is why there are no holes. So you cannot swap a pin buckle for a ratchet buckle on a classic belt, and a pin buckle fitted to a track strap has no hole to go into.
Between two ratchet buckles of the same width, on the other hand, the swap is easy: slide the strap into the clamp, tighten the screw, done. In our range that applies to the men’s leather belt with automatic buckle and the automatic belt in black PU leather. If the pawl no longer holds, the worn part is almost always the track, not the buckle: changing the buckle then fixes nothing, and it is the belt that needs replacing.
What our range says about buckles, and mistakes to avoid
Checked on September 30, 2026 across the 15 belts published in our leather belt range: 9 state their width in the title, 3 at 3.5 cm, 1 at 3.7 cm and 5 at 3.8 cm; 6 name a pin buckle, 3 a ratchet buckle, 1 a reversible swivel buckle. In other words, two widths share most of the men’s belt market, and that is the first thing to check before buying a buckle on its own. Four mistakes come up again and again:
- buying a “standard” buckle without measuring the strap: 1 3/8 and 1 1/2 inch are not interchangeable;
- cutting the strap at the tip end to shorten it, which removes the finished tip and, on a ratchet belt, the track;
- closing the fold without passing the prong through its slot or threading the keeper;
- forcing a short fine-thread screw with an oversized screwdriver, which chews the head and makes the next removal impossible.
For a long belt you plan to cut down, choose a model built for it, such as our leather belt for men in big sizes or the cut-to-size leather belt in black or coffee, whose buckle comes off to adjust the length.
Belts to compare
If you would rather start again with a complete belt, these models cover the main buckle types:
- See full grain leather belts for men: the whole range, in 3.5 and 3.8 cm.
- See the cowhide belt with 3.8 cm pin buckle: the classic buckle, the simplest to change.
- See the leather ratchet belt: no holes, cut to your size.
- See the pin buckle belt for jeans: wide, for denim belt loops.
In short
To put a buckle on a belt, first read the mounting on the back of the strap, snaps, screws, clamp or stitching, take the old buckle off without forcing, then fit the new one the right way round, prong through its slot and keeper threaded on. Measure the width before you buy, and only swap a ratchet buckle for another ratchet buckle. To get the length right, read our guide to belt sizes, or compare the models in our full grain leather belts range.
Frequently asked questions
Can you change the buckle on any belt?
Almost. Snap-on, screwed and clamped folds come apart in minutes. A sewn fold can be changed too, but it has to be unpicked and resewn with waxed thread, which a cobbler does cleanly.
How do I know what width of buckle to buy?
Measure the strap where it enters the buckle. Men’s belts are most often 1 3/8 inch (3.5 cm) or 1 1/2 inch (3.8 cm), and the buckle has to match to the millimeter, or it will either float or refuse to close.
Can I put a ratchet buckle on a belt with holes?
No. A ratchet buckle grips a toothed track glued under the strap, which a belt with holes does not have. It can only be swapped for another ratchet buckle of the same width.
How do I shorten a belt by removing the buckle?
Take the buckle off, cut the excess strap on the buckle end, never the tip end, then refit the buckle. On a belt with holes you may need to cut a new slot for the prong.
Where can I find replacement belt buckle screws?
They are short Chicago screws with a fine thread, rarely stocked by hardware stores. Leathercraft suppliers and cobblers carry them; failing that, a watch strap screw often fits.
