12.5 mm / 0.49 in Brass Swivel-Cup Jeans Button, Metallic Black, 150 Pieces KD0012503PROMO

This 12.5 mm / 0.49 in brass swivel-cup jeans button is a compact metal closure detail for denim apparel and selected bag applications. It has a metallic black finish and a movable cup construction that gives the button a more flexible seating behavior after installation.

The moving cup is the defining feature of this style. Instead of remaining completely rigid at the lower connection area, the cup section can rotate and settle against the denim or material surface. This can help create a cleaner visual result on certain denim constructions, but the finished performance still depends on fabric thickness, fastening parts, press pressure, and the correct die geometry.

Where Can This 12.5 mm / 0.49 in Jeans Button Be Used?

This button is suitable for jeans, denim jackets, denim skirts, compact waistband applications, selected workwear designs, and bag details where a dark metal denim accent is needed. Its 12.5 mm / 0.49 in diameter provides a more compact option than larger 14 mm or 17 mm jeans buttons.

Choose this size when a larger button would overpower the waistband, front placket, or accessory detail. Before regular production, check the button diameter against the buttonhole length, waistband width, denim thickness, seam allowance, and zipper top-stop position.

What Does the Swivel-Cup Construction Do?

The swivel cup is the lower section of the button assembly. It is designed to move after installation so the button can sit more naturally against the material. This construction may be useful on denim and layered textile structures where a completely fixed button base could sit less evenly.

A swivel cup does not replace correct installation. The button must still be matched with the appropriate fastening parts and a die designed for the exact 12.5 mm / 0.49 in cup geometry. A setting die made for a larger fixed jeans button should not automatically be used for this product.

20L Button Size

The visible button head measures 12.5 mm / 0.49 in, commonly described as 20L. This size is useful for denim products that need a clear jeans-button identity without using a large, heavy-looking button head.

For very thick waistbands, reinforced workwear, or heavy multilayer denim, test the full garment construction before ordering larger quantities. Button size, cup shape, fastening nail, material thickness, and press setting all affect the final result.

Brass Material and Metallic Black Finish

This jeans button is made from brass and finished in metallic black. The dark finish can create a strong visual direction for black denim, charcoal workwear, indigo jeans, dark navy jackets, and bags with black-toned metal hardware.

For a more coordinated collection, compare the button finish with zipper teeth, rivets, snaps, belt hardware, eyelets, and logo labels. Keeping visible metal accessories within a similar dark finish family can make the final product feel more intentional and premium.

Installation and Die Selection

This product should be installed with a setting die matched to the exact swivel-cup button form. Die selection must consider the 12.5 mm / 0.49 in diameter, cup depth, fastening-part geometry, and the connection type of the press or machine.

Use a compatible hand press, impact press, electric machine, or pneumatic machine only after confirming the die and button system match. For sample rooms and small-batch workshops, the M0099 hand press fastening machine can be used with the correct matched die.

For limited manual work, a hand-hit fastening tool may be considered after confirming that the support surface and tooling suit the movable cup form. Always complete a sample installation before production.

Related Hardware for Denim Projects

A jeans button is usually part of a larger hardware system. For jeans and denim jackets, consider the button together with the fly zipper, pocket rivets, metal labels, and other visible metal components. This helps avoid mixed finishes and gives customers a more complete product experience.

For alternative sizes, finishes, fixed styles, and swivel-cup forms, browse the brass and stainless steel jeans buttons collection.

Custom Branded Swivel-Cup Jeans Buttons

Swivel-cup jeans buttons can be developed with custom logo details, lettering, symbols, embossed surfaces, special finishes, and alternative cup forms. Branded metal buttons are especially effective in denim, workwear, streetwear, and private-label bag collections because they are a highly visible part of the product’s opening and closing experience.

Contact us with your artwork, required diameter, intended material, target finish, desired cup construction, and estimated quantity to review a custom-production solution.

Frequently Asked Questions

What is the button size?

The visible button diameter is 12.5 mm / 0.49 in, also known as 20L.

What is a swivel-cup jeans button?

It is a jeans button with a lower cup section designed to move after installation, helping the button settle against the material surface.

What is the button made from?

The product is made from brass and has a metallic black finish.

How many buttons are included?

The product is supplied in a 150-piece pack.

Can I use a 14 mm setting die?

No. A 14 mm die should not be assumed compatible. The setting die must match the exact 12.5 mm button diameter, movable-cup shape, and fastening geometry.

Can this button be used on bags?

It can be used on selected bag details. Test the material thickness, expected pull force, fastening parts, and installation method on the finished bag construction.

Can I order custom logo buttons?

Yes. Custom logo, lettering, surface texture, finish, cup form, and size requests can be reviewed for suitable production quantities.