# 120 mm axial fan

> What are the mounting dimensions of a 120 mm fan?

- Category: Power & cooling › Fans
- Kind: Standard part
- Basis: industry standard frame
- Page: https://xemstudio.com/objects/120mm-fan/ · JSON: https://xemstudio.com/api/geometry?object=120mm-fan · Plain text: https://xemstudio.com/objects/120mm-fan/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); linked files under their publishers' licenses

## Overall (mm)

| length | width | height |
|---|---|---|
| 120 | 120 | 25 |

Mounting holes: 4 × Ø4.3 mm, pattern 105 x 105 mm, M4 or fan screw

## Notes

- Frame 120 × 120 mm; four holes on a 105 × 105 mm pattern, Ø4.3 mm; 25 mm thick is standard, 15 mm slim exists.
- 140 mm fans use a 124.5 × 124.5 mm pattern; 80 mm use 71.5 × 71.5; 92 mm use 82.5 × 82.5.

## Where the files are

- Wikipedia: [Computer fan (dimensions table)](https://en.wikipedia.org/wiki/Computer_fan) — web — CC BY-SA 4.0 (text)

## Questions

**What is the 120 mm fan screw hole spacing?**

105 × 105 mm, Ø4.3 mm holes; 25 mm thick standard, 15 mm slim exists.

**What is the hole spacing for 80, 92 and 140 mm fans?**

80 mm: 71.5 × 71.5. 92 mm: 82.5 × 82.5. 140 mm: 124.5 × 124.5 (some 140s also carry 105 × 105).

## Fits with

- [40 mm axial fan](https://xemstudio.com/objects/40mm-fan/)
- [Socket head cap screws, M2–M8 (ISO 4762 / DIN 912)](https://xemstudio.com/objects/socket-head-cap-screws-metric/)
- [2020 aluminum extrusion](https://xemstudio.com/objects/2020-extrusion/)