
Metal Buckles – Wire Adjusters, Frames and Dungaree Buckles
Metal buckles in brass wire, iron and stainless steel, direct from the manufacturer: adjusters, roller sliders, frames, cord clamps and dungaree buckles from 10 to 50 mm.
Metal buckles – examples from our production
A small selection of the models we produce and supply. Send an inquiry for samples and the full catalogue.
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Metal buckles for webbing, straps and shoulder straps
Metal buckles take the greatest load on a product – on the bag's shoulder strap, the backpack strap, the braces of dungarees. In this category Polkom, a manufacturer of metal accessories, offers wire and cast metal buckles wholesale: adjusters, roller sliders, rectangular and square frames, stainless steel models, cord clamps and classic dungaree buckles. All models are available in sizes from 10 to 50 mm, and the choice of finish lets you match the buckle with the other metal accessories on the product.
Models and sizes
| Code | Model | Sizes (mm) | Material | Application | Logo |
|---|---|---|---|---|---|
| KT-01 | Brass wire strap adjuster (slider) | 10–50 (by inner width, various models) | brass wire | shoulder straps and adjustable straps, bags and backpacks, sportswear | no (wire construction) |
| KT-02 | Brass wire roller adjuster | 10–50 (various models) | brass wire | shoulder straps, bags and backpacks, sportswear | no (wire construction) |
| KT-03 | Iron strap adjuster | 10–50 (various models) | iron with protective coating | workwear, bags, adjustable straps | no (wire construction) |
| KT-04 | Rectangular wire buckle (strap keeper) | 10–50 (various models) | iron with protective coating | bags and backpacks, webbing belts, shoulder straps | no (wire construction) |
| KT-05 | Square wire buckle | 10–50 (various models) | iron with protective coating | fashion belts, bags, straps and shoulder straps | no (wire construction) |
| KT-06 | Stainless steel wire buckle | 10–50 (various models) | stainless steel | outdoor and sports gear, beach and marine products, workwear | no (wire construction) |
| KT-10 | Cord and tape clamp buckle | 10–50 (various models) | brass | cords and laces, tapes and straps, sportswear | no (wire construction) |
| KT-11 | Dungaree buckle (braces) | 10–50 (various models) | brass wire | dungarees and denim overalls, children's and workwear, braces | no (wire construction) |
Sliding bar adjusters (KT-01, KT-03)
The classic tri-glide slider with three bars, the middle one movable. The webbing wraps around it and the length changes in a single movement, without stitching. KT-01 is made of brass wire and KT-03 of iron with a protective coating that delays rust – an economical solution for series production.
Roller adjuster (KT-02)
The bar is replaced by a rotating roller, so the webbing slides more easily and wears less. Suitable for shoulder straps that are adjusted frequently.
Wire frames (KT-04, KT-05, KT-06)
Rectangular, square and rounded frames that serve as a strap keeper, a connecting element or a simple buckle. The square frame KT-05 gives fashion belts and bags a geometric, modern look. KT-06 is made of stainless steel – the best choice for beach, marine and outdoor products.
Cord and tape clamp (KT-10)
A metal clamp with a toothed grip that tightens the end of a cord or tape and allows the tension to be adjusted. Available in light and dark finishes.
Dungaree buckle (KT-11)
An adjuster with a hook that fastens onto a jeans button on the bib. The classic for denim, children's and work dungarees and for braces.
Materials
- Brass wire – does not rust, takes finishes well and suits fashion products.
- Iron with protective coating – an economical solution for standard series products.
- Stainless steel – high corrosion resistance in humidity and salt water.
- Zinc alloy – for cast models with a denser, flat profile.
Finishes and coordination
We offer finishes from our colour card – nickel, antique brass, black nickel, gold, gunmetal and others. Wire buckles cannot carry a logo, but when they share the same finish as the eyelets, rivets and rings, the product looks finished and consistent. If you are looking for metal buckles with an embossed logo, see the general Buckles section and send us your design.
Fitting and quality
Wire buckles are attached by sewing the webbing – no press or die is needed. The opening must match the width and thickness of the webbing: if it is too narrow the webbing bunches, if it is too wide it slips. We recommend testing a sample with the actual material before the production run.
How to order
Send us the model code, webbing width, finish and approximate quantity. Polkom offers fast samples and delivery across the EU, and all products are OEKO-TEX® certified. Minimum quantities depend on the article – send an enquiry via the contact page.
Guides
Automatic Belt Buckle – How It Works and When to Choose One
Metal Bag Buckles – Types, Sizes and Finishes
Men's Belt Buckles – Classic, Jeans and Plate Buckles
Shoe and Sandal Buckles – Small Metal Buckles
Western Belt Buckles – Cowboy Plate Buckles with Relief and Logo
Metal Buckles with Logo – Made to Your Design
Brass Buckles – Solid Brass or Brass-Tone Finish
Metal Belt Buckles – How to Choose the Right One
Buckle Sizes for Belts According to Belt Width
Frequently asked questions
What is the difference between a bar adjuster and a roller adjuster?
Which metal buckles are suitable for marine and humid environments?
Can wire buckles carry a logo?
What sizes do you offer?
Other types
Send us an inquiry with a description or photo – you will receive an offer, samples and a production lead time.





























