# Jewelry construction glossary: jump ring, post, hinge, bail…

> The components of a jewel with the names used in the workshop: loop, jump ring, band, post, clasp, lobster clasp, hinge, bail, tube and mounting.

- Source: https://www.711grados.com/en/jewelry-construction-glossary/
- Language: en
- Note: This entry was drafted with the help of AI and is pending review by the author.
- Published: 2026-07-01
- Updated: 2026-07-01
- Translation (es): https://www.711grados.com/es/glosario-de-construccion-de-joyas/
- Author: Sandra Sánchez
- Site: 711 Grados (https://www.711grados.com/)

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Small parts that join, swivel or hang have names of their own. Here are the ones that come up all the time in a workshop, with the Spanish term. For the parts of each kind of jewel, see [parts of a jewel](https://www.711grados.com/en/parts-of-a-piece-of-jewelry/).

## Rings and loops

- **Loop / ring (argolla):** a closed metal ring. In some countries, also the wedding band.
- **Jump ring (anilla):** a small ring, open or soldered, that joins pieces. See [chainmaille](https://www.711grados.com/en/chainmaille/).
- **Hoop / band (aro):** the circular part of a ring or hoop earring.

## Clasps and joints

- **Clasp (cierre):** joins the ends of a chain or bracelet. See [types of clasps](https://www.711grados.com/en/types-of-jewelry-clasps-and-earring-backs/).
- **Lobster clasp (mosquetón):** a clasp with a spring trigger, shaped like a lobster claw.
- **Hinge (charnela, bisagra):** an articulated joint of two pieces turning on an axis, typical of bangles and boxes.
- **Pin / hinge pin (pasador):** a rod that passes through the hinge knuckles or closes a brooch.
- **Rivet (remache):** a metal pin flattened at both ends that joins two pieces without solder. See [rivets](https://www.711grados.com/en/cold-connections-rivets/).

## Hollow parts and supports

- **Tube (tubo):** a hollow section, the basis of hinges, rivets and beads.
- **Post / stem (vástago):** the rod of an earring that passes through the ear, or the pin of a brooch.
- **Bail (bail):** the small loop through which the chain passes on a pendant.
- **Core (alma):** the interior of a piece, such as the cord around which a wire is wrapped or the core of a filled piece.

## Parts for stones

- **Chaton and gallery:** see [setting glossary](https://www.711grados.com/en/setting-glossary/).
- **Mounting (montura):** the metal structure in which the stone is set.