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7 mm RC wheel hex
What size is a 7 mm RC wheel hex and which cars use it? · Standard part · basis: Secondary source: RC Car Action (Traxxas release) (copy of the maker's figures; the maker publishes none directly)
Also called: 7mm wheel hex, 7mm hex rc, 7 mm hex adapter, 7mm hex wheels, which rc cars use 7mm hex, 7mm hex size, hexágono 7mm rc, 7mm sechskant rc, hex 7mm rueda rc
Exact dimensions. True size, with no printing tolerance added.
- length
- 7 mm
- width
- 7 mm
Notes
- A 7 mm wheel hex is the hexagonal drive between axle and wheel; 7 mm is the across-flats size. The file is a 7 mm across-flats hexagon profile.
- Hex thickness, drive-pin size and bore are not published as a standard and are not modelled.
- True size, no printing tolerance added. Only published numbers are used; anything not published is said so.
- Secondary source: the numbers come from a retailer or magazine copy of the maker's specification.
7 mm RC wheel hex size chart
| dimension | value |
|---|---|
| Across flats | 7 mm |
| Used on (published) | Traxxas TRX-4M (Bronco, K10) |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| RC Car Action (Traxxas release) | TRX-4M Chevrolet K10 High Trail | web | Publisher's page; dimensions are facts |
Free files
★ Free files 1 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json
| rc-wheel-hex-7mm-hex-profile | Hexagon 7 mm across flats, 1 mm reference thickness (hub length not published) | STEP · STL |
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.Plain text: sheet.txt · JSON: /api/geometry?object=rc-wheel-hex-7mm

Fits with
Questions
Which RC cars use 7 mm hexes?
Traxxas TRX-4M (Bronco, K10).



