Metal Buckles – Wire Adjusters, Frames and Dungaree Buckles

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 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

CodeModelSizes (mm)MaterialApplicationLogo
KT-01Brass wire strap adjuster (slider)10–50 (by inner width, various models)brass wireshoulder straps and adjustable straps, bags and backpacks, sportswearno (wire construction)
KT-02Brass wire roller adjuster10–50 (various models)brass wireshoulder straps, bags and backpacks, sportswearno (wire construction)
KT-03Iron strap adjuster10–50 (various models)iron with protective coatingworkwear, bags, adjustable strapsno (wire construction)
KT-04Rectangular wire buckle (strap keeper)10–50 (various models)iron with protective coatingbags and backpacks, webbing belts, shoulder strapsno (wire construction)
KT-05Square wire buckle10–50 (various models)iron with protective coatingfashion belts, bags, straps and shoulder strapsno (wire construction)
KT-06Stainless steel wire buckle10–50 (various models)stainless steeloutdoor and sports gear, beach and marine products, workwearno (wire construction)
KT-10Cord and tape clamp buckle10–50 (various models)brasscords and laces, tapes and straps, sportswearno (wire construction)
KT-11Dungaree buckle (braces)10–50 (various models)brass wiredungarees and denim overalls, children's and workwear, bracesno (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.

FAQ

Frequently asked questions

What is the difference between a bar adjuster and a roller adjuster?
Both let you change the length of the webbing without stitching. On a standard adjuster the webbing wraps around a fixed or sliding bar and is held by friction. The roller model has a rotating roller over which the webbing slides more easily and wears less – convenient for shoulder straps that are adjusted frequently.
Which metal buckles are suitable for marine and humid environments?
For beach bags, marine clothing, outdoor gear and products that often get wet, choose the stainless steel model (KT-06). The brass models do not rust either, while the iron ones have a protective coating that delays corrosion and is suitable for standard conditions of use.
Can wire buckles carry a logo?
No. The wire construction is too thin for an embossed or engraved logo. However, you can choose a finish that matches the other metal accessories on the product. If the logo is important, we offer cast metal, polyester and plastic buckles with a logo to your design.
What sizes do you offer?
Wire buckles and adjusters come in sizes from about 10 to 50 mm depending on the model. The size is defined by the inner width of the opening, which should match the width of the webbing. State the width of your webbing in your enquiry and we will suggest the exact article.
Custom offer
Looking for a specific model, colour or size?

Send us an inquiry with a description or photo – you will receive an offer, samples and a production lead time.