# Bayonet socket Ø24 × Ø20 × 40 with two L-slots (8 deep, 30° turn), 3 wide

> What is the female half of a bayonet joint?

- Category: Hardware › Mechanism parts
- Kind: Modern device
- Basis: Xem Studio design following Brown's figure (1868); true size, no printing allowance
- Page: https://xemstudio.com/objects/bayonet-socket-24x20-l-slots/ · JSON: https://xemstudio.com/api/geometry?object=bayonet-socket-24x20-l-slots · Plain text: https://xemstudio.com/objects/bayonet-socket-24x20-l-slots/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); files Xem Studio Design License (free to use and sell from, not to redistribute as files: https://xemstudio.com/license/)
- Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/)

## Overall (mm)

| length | width | height |
|---|---|---|
| 24.0 | 24.0 | 40.0 |

**Exact dimensions.** True size, with no printing tolerance added.

## Notes

- Ø24 tube (Ø20 bore, the tube's outside line on line) with two L-shaped slots 3 mm wide opposite each other: each runs 8 mm straight in from the mouth and then 30° round the circumference, ending in a semicircle that the Ø3 stud seats in.
- Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

## Sizes

| dimension | value |
|---|---|
| socket | Ø24 × Ø20 × 40 |
| slots | 2 × L, 3 wide |
| axial leg | 8 mm |
| turn | 30° |

## Where the files are

- Henry T. Brown (1868, public domain): [Five Hundred and Seven Mechanical Movements — scan on archive.org](https://archive.org/details/fivehundredseven00browiala) — web — Publisher's page; dimensions are facts
- 507movements.com: [Brown's movement No. 245: figure, his text and an animation](https://507movements.com/mm_245.html) — web — Publisher's page; dimensions are facts
- Xem Studio: [drawing](https://xemstudio.com/objects/bayonet-joint-mechanism/) — web — Publisher's page; dimensions are facts

## Free STEP/STL (1 parts, Xem Studio Design License, Xem Studio)

Index: https://xemstudio.com/files/hardware/bayonet-socket-24x20-l-slots/index.json · license: https://xemstudio.com/files/hardware/bayonet-socket-24x20-l-slots/LICENSE.md

- bayonet-socket-24x20-l-slots: [STEP](https://xemstudio.com/files/hardware/bayonet-socket-24x20-l-slots/bayonet-socket-24x20-l-slots.step) · [STL](https://xemstudio.com/files/hardware/bayonet-socket-24x20-l-slots/bayonet-socket-24x20-l-slots.stl) — socket, axis Z, mouth at z 0, z −40..0, axial legs on ±X

## Questions

**What is the female half of a bayonet joint?**

Ø24 tube (Ø20 bore, the tube's outside line on line) with two L-shaped slots 3 mm wide opposite each other: each runs 8 mm straight in from the mouth and then 30° round the circumference, ending in a semicircle that the Ø3 stud seats in.

## Fits with

- [Bayonet joint: two studs in L-slots, locked by a 30° turn](https://xemstudio.com/objects/bayonet-joint-mechanism/)