Xem Studiomeasured geometryLibrary › Hardware › Laboratory rubber stoppers #0–#13
#6 stopper
#6 stopper: Ø32 top, Ø26 bottom, 25 mm tall
Exact dimensions. True size, no printing tolerance added. Threads are plain cylinders at the major diameter.
STEP STL free, CC BY 4.0 (credit "Xem Studio")
Dimensions
| number | #6 |
|---|---|
| top_mm | 32 |
| bottom_mm | 26 |
| height_mm | 25 |
| fits_opening_mm | 27–31 |
Let your AI pull this. Add
Set it up →https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.From the full sheet
Laboratory rubber stoppers #0–#13 (25 mm tall): every size, notes, mating features and sources. What size rubber stopper fits a 25 mm test tube or a soda bottle?