12 mm RC wheel hex — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/rc-wheel-hex-12mm/  (sheet CC BY 4.0)
Basis: Manufacturer specifications (Axial (Horizon Hobby), RC Car Action (Team Associated release))
Catalog version: 2026-10-20

Overall (mm): length 12, width 12
- A 12 mm wheel hex is the hexagonal drive between axle and wheel; 12 mm is the across-flats size. The file is a 12 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.

dimension  value
Across flats  12 mm
Used on (published)  Traxxas TRX-4 and TRX-6, Axial SCX10 III and UTB18 Capra, Team Associated Rival MT10

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Axial (Horizon Hobby): SCX10 III Jeep JLU AXI03003 — web — Publisher's page; dimensions are facts — https://www.axialadventure.com/product/axial-1-10-scx10-iii-jeep-jlu-wrangler-4x4-rock-crawler-with-portals-rtr/AXI03003.html
- Axial (Horizon Hobby): UTB18 Capra AXI01002V2 — web — Publisher's page; dimensions are facts — https://www.axialadventure.com/product/axial-1-18-utb18-capra-4wd-unlimited-trail-buggy-rtr/AXI01002V2.html
- RC Car Action (Team Associated release): Rival MT10 Brushless RTR V2 — web — Publisher's page; dimensions are facts — https://www.rccaraction.com/?p=361155

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/rc-wheel-hex-12mm/index.json
API: https://xemstudio.com/api/geometry?object=rc-wheel-hex-12mm