M2.5 captive nut slot (side-loaded) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/captive-nut-slot-m2-5/  (sheet CC BY 4.0; files Xem Studio Design License, https://xemstudio.com/license/)
Basis: Xem Studio design — geometry computed in the generator from traditional proportions
Catalog version: 2026-10-20

Overall (mm): length 13.0, width 19.5, height 12.0
- Woodworking joint drawn for 3D printing: the parts lock together by shape, so a print can be joined without glue or screws. Drawn at true size with the parts line to line (zero gap) in their assembled position — add your printer's fit allowance to the mating faces (your AI or slicer can do this).
- A slot that takes an M2.5 nut from the side, for a nut in the middle of a part (e.g. under a clamp screw).
- Drawn at the nut's true size: add your fit allowance to the slot width and height. The slot ceiling is a short bridge.

dimension  value
stock  13 × 19.5 × 12 mm test block
parts  block, nut
slot  5 mm wide (nut across flats), 2 mm tall (nut height), open to the side
screw hole  Ø2.5 mm
assembles  slide the nut in from the side, screw through
holds  the nut mid-part, where a top pocket can't reach

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Xem Studio: Joinery design (geometry computed in the generator from traditional proportions) — web — Xem Studio design — https://xemstudio.com/

Free files (Xem Studio Design License, Xem Studio; STEP + STL, 3 parts): https://xemstudio.com/files/hardware/captive-nut-slot-m2-5/index.json
API: https://xemstudio.com/api/geometry?object=captive-nut-slot-m2-5