Bayonet socket Ø24 × Ø20 × 40 with two L-slots (8 deep, 30° turn), 3 wide — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/bayonet-socket-24x20-l-slots/  (sheet CC BY 4.0; files Xem Studio Design License, https://xemstudio.com/license/)
Basis: Xem Studio design following Brown's figure (1868); true size, no printing allowance
Catalog version: 2026-10-20

Overall (mm): length 24.0, width 24.0, height 40.0
- 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).

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

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

Free files (Xem Studio Design License, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/bayonet-socket-24x20-l-slots/index.json
API: https://xemstudio.com/api/geometry?object=bayonet-socket-24x20-l-slots