# Lead screw Tr10×2, 80 mm thread, Ø6 journals, Ø20 head with Ø6 cross hole

> What is a Tr10×2 lead screw?

- Category: Hardware › Mechanism parts
- Kind: Modern device
- Basis: Xem Studio design following Brown's figure (1868); true size, no printing allowance
- Page: https://xemstudio.com/objects/lead-screw-tr10x2-l80-journals-6/ · JSON: https://xemstudio.com/api/geometry?object=lead-screw-tr10x2-l80-journals-6 · Plain text: https://xemstudio.com/objects/lead-screw-tr10x2-l80-journals-6/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); files Xem Studio Design License (free to use and sell from, not to redistribute as files: https://xemstudio.com/license/)
- Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/)

## Overall (mm)

| length | width | height |
|---|---|---|
| 20.0 | 20.0 | 118.0 |

**Exact dimensions.** True size, with no printing tolerance added.

## Notes

- Trapezoidal Tr10×2 (ISO 2904 basic profile, 30°, single start, right hand) screw, 80 mm of thread between two Ø6 × 14 journals, with a Ø20 × 10 head cross-drilled Ø6 for a tommy bar: 2 mm of travel per turn.
- Minor Ø (basic) 8 mm; drawn with no allowance, so the nut-slide of the same page meshes line on line.
- Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

## Sizes

| dimension | value |
|---|---|
| thread | Tr10×2, right hand |
| thread length | 80 mm |
| journals | 2 × Ø6 × 14 |
| head | Ø20 × 10, Ø6 cross hole |
| travel per turn | 2 mm |

## Where the files are

- Henry T. Brown (1868, public domain): [Five Hundred and Seven Mechanical Movements — scan on archive.org](https://archive.org/details/fivehundredseven00browiala) — web — Publisher's page; dimensions are facts
- 507movements.com: [Brown's movement No. 103: figure, his text and an animation](https://507movements.com/mm_103.html) — web — Publisher's page; dimensions are facts
- Xem Studio: [drawing](https://xemstudio.com/objects/lead-screw-and-slide-mechanism/) — web — Publisher's page; dimensions are facts

## Free STEP/STL (1 parts, Xem Studio Design License, Xem Studio)

Index: https://xemstudio.com/files/hardware/lead-screw-tr10x2-l80-journals-6/index.json · license: https://xemstudio.com/files/hardware/lead-screw-tr10x2-l80-journals-6/LICENSE.md

- lead-screw-tr10x2-l80: [STEP](https://xemstudio.com/files/hardware/lead-screw-tr10x2-l80-journals-6/lead-screw-tr10x2-l80.step) · [STL](https://xemstudio.com/files/hardware/lead-screw-tr10x2-l80-journals-6/lead-screw-tr10x2-l80.stl) — screw, axis Z, thread z 0..80, journals z −14..0 and 80..94, head z 94..104

## Questions

**What is a Tr10×2 lead screw?**

Trapezoidal Tr10×2 (ISO 2904 basic profile, 30°, single start, right hand) screw, 80 mm of thread between two Ø6 × 14 journals, with a Ø20 × 10 head cross-drilled Ø6 for a tommy bar: 2 mm of travel per turn.

## Fits with

- [Lead screw and nut-slide (rotation to straight travel), Tr10×2](https://xemstudio.com/objects/lead-screw-and-slide-mechanism/)