# Heat-set threaded inserts, ruthex RX series: M2 to M8 and #2-56 to 3/8-16

> What hole does a ruthex M3 insert need?

- Category: Hardware › Fasteners
- Kind: Standard part
- Basis: ruthex RX series datasheet (d1 insert Ø, d2 tip Ø, L, W min wall, d3 hole Ø); geometry drawn by Xem Studio from those numbers
- Page: https://xemstudio.com/objects/heat-set-inserts-ruthex/ · JSON: https://xemstudio.com/api/geometry?object=heat-set-inserts-ruthex · Plain text: https://xemstudio.com/objects/heat-set-inserts-ruthex/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); linked files under their publishers' licenses
- Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/)

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

## Notes

- Drawn as: lead-in pilot at the tip Ø over the bottom 15 % of the length, two knurl bands at the insert Ø with a relief groove between, thread as a plain bore at the minor diameter (threads not modelled). Knurl texture is not drawn: the insert Ø is the knurl's outside.
- Print the hole at the listed hole Ø, at least the insert length + 1 mm deep for a blind hole (room for displaced plastic), and keep at least W of wall around it. Press the insert in with a soldering iron and insert tip at the plastic's printing temperature until its top is flush.

## Sizes

| article | thread | length_mm | insert_od_mm | tip_mm | hole_mm | min_wall_mm |
|---|---|---|---|---|---|---|
| RX-M2x4 | M2 | 4.0 | 3.6 | 3.1 | 3.2 | 1.3 |
| RX-M2.5x5.7 | M2.5 | 5.7 | 4.6 | 3.9 | 4.0 | 1.6 |
| RX-M3Sx4.0 | M3 | 4.0 | 4.6 | 3.9 | 4.0 | 1.6 |
| RX-M3x5x4 | M3 | 4.0 | 5.0 | 4.25 | 4.4 | 1.3 |
| RX-M3x5.7 | M3 | 5.7 | 4.6 | 3.9 | 4.0 | 1.6 |
| RX-M4Sx4.0 | M4 | 4.0 | 6.3 | 5.5 | 5.6 | 2.1 |
| RX-M4x8.1 | M4 | 8.1 | 6.3 | 5.5 | 5.6 | 2.1 |
| RX-M5Sx5.8 | M5 | 5.8 | 7.1 | 6.3 | 6.4 | 2.6 |
| RX-M5x9.5 | M5 | 9.5 | 7.1 | 6.3 | 6.4 | 2.6 |
| RX-M6x12.7 | M6 | 12.7 | 8.7 | 7.9 | 8.0 | 3.3 |
| RX-M8x12.7 | M8 | 12.7 | 10.1 | 9.5 | 9.6 | 4.5 |
| RX-2-56x4 | #2-56 | 4.0 | 3.6 | 3.1 | 3.2 | 1.3 |
| RX-4-40x5.7 | #4-40 | 5.7 | 4.6 | 3.9 | 4.0 | 1.6 |
| RX-8-32x8.1 | #8-32 | 8.1 | 6.3 | 5.5 | 5.6 | 2.1 |
| RX-10-24x9.5 | #10-24 | 9.5 | 7.1 | 6.3 | 6.4 | 2.6 |
| RX-1/4-20x12.7 | 1/4-20 | 12.7 | 8.7 | 7.9 | 8.0 | 3.3 |
| RX-3/8-16x12.7 | 3/8-16 | 12.7 | 12.6 | 11.8 | 11.9 | 6.0 |

## Where the files are

- ruthex: [RX series product datasheet: d1 insert Ø, d2 tip Ø, L, W min wall, d3 hole Ø (metric and UNC)](https://www.igo3d.com/mediafiles/Sonstiges/Ruthex/ruthex_Datenblatt_RX-Serie.pdf) — PDF — maker's sheet; dimensions cited, nothing copied

## Free STEP/STL (17 parts, CC BY 4.0, Xem Studio)

Index: https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/index.json

- insert-rx-m2x4: [STEP](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-m2x4.step) · [STL](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-m2x4.stl) — ruthex RX-M2x4: M2, Ø3.6 knurl, tip Ø3.1, 4 long; print hole Ø3.2 × ≥5, wall ≥ 1.3
- insert-rx-m2_5x5_7: [STEP](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-m2_5x5_7.step) · [STL](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-m2_5x5_7.stl) — ruthex RX-M2.5x5.7: M2.5, Ø4.6 knurl, tip Ø3.9, 5.7 long; print hole Ø4 × ≥6.7, wall ≥ 1.6
- insert-rx-m3sx4_0: [STEP](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-m3sx4_0.step) · [STL](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-m3sx4_0.stl) — ruthex RX-M3Sx4.0: M3, Ø4.6 knurl, tip Ø3.9, 4 long; print hole Ø4 × ≥5, wall ≥ 1.6
- insert-rx-m3x5x4: [STEP](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-m3x5x4.step) · [STL](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-m3x5x4.stl) — ruthex RX-M3x5x4: M3, Ø5 knurl, tip Ø4.25, 4 long; print hole Ø4.4 × ≥5, wall ≥ 1.3
- insert-rx-m3x5_7: [STEP](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-m3x5_7.step) · [STL](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-m3x5_7.stl) — ruthex RX-M3x5.7: M3, Ø4.6 knurl, tip Ø3.9, 5.7 long; print hole Ø4 × ≥6.7, wall ≥ 1.6
- insert-rx-m4sx4_0: [STEP](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-m4sx4_0.step) · [STL](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-m4sx4_0.stl) — ruthex RX-M4Sx4.0: M4, Ø6.3 knurl, tip Ø5.5, 4 long; print hole Ø5.6 × ≥5, wall ≥ 2.1
- insert-rx-m4x8_1: [STEP](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-m4x8_1.step) · [STL](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-m4x8_1.stl) — ruthex RX-M4x8.1: M4, Ø6.3 knurl, tip Ø5.5, 8.1 long; print hole Ø5.6 × ≥9.1, wall ≥ 2.1
- insert-rx-m5sx5_8: [STEP](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-m5sx5_8.step) · [STL](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-m5sx5_8.stl) — ruthex RX-M5Sx5.8: M5, Ø7.1 knurl, tip Ø6.3, 5.8 long; print hole Ø6.4 × ≥6.8, wall ≥ 2.6
- insert-rx-m5x9_5: [STEP](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-m5x9_5.step) · [STL](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-m5x9_5.stl) — ruthex RX-M5x9.5: M5, Ø7.1 knurl, tip Ø6.3, 9.5 long; print hole Ø6.4 × ≥10.5, wall ≥ 2.6
- insert-rx-m6x12_7: [STEP](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-m6x12_7.step) · [STL](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-m6x12_7.stl) — ruthex RX-M6x12.7: M6, Ø8.7 knurl, tip Ø7.9, 12.7 long; print hole Ø8 × ≥13.7, wall ≥ 3.3
- insert-rx-m8x12_7: [STEP](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-m8x12_7.step) · [STL](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-m8x12_7.stl) — ruthex RX-M8x12.7: M8, Ø10.1 knurl, tip Ø9.5, 12.7 long; print hole Ø9.6 × ≥13.7, wall ≥ 4.5
- insert-rx-2-56x4: [STEP](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-2-56x4.step) · [STL](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-2-56x4.stl) — ruthex RX-2-56x4: #2-56, Ø3.6 knurl, tip Ø3.1, 4 long; print hole Ø3.2 × ≥5, wall ≥ 1.3
- insert-rx-4-40x5_7: [STEP](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-4-40x5_7.step) · [STL](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-4-40x5_7.stl) — ruthex RX-4-40x5.7: #4-40, Ø4.6 knurl, tip Ø3.9, 5.7 long; print hole Ø4 × ≥6.7, wall ≥ 1.6
- insert-rx-8-32x8_1: [STEP](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-8-32x8_1.step) · [STL](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-8-32x8_1.stl) — ruthex RX-8-32x8.1: #8-32, Ø6.3 knurl, tip Ø5.5, 8.1 long; print hole Ø5.6 × ≥9.1, wall ≥ 2.1
- insert-rx-10-24x9_5: [STEP](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-10-24x9_5.step) · [STL](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-10-24x9_5.stl) — ruthex RX-10-24x9.5: #10-24, Ø7.1 knurl, tip Ø6.3, 9.5 long; print hole Ø6.4 × ≥10.5, wall ≥ 2.6
- insert-rx-1-4-20x12_7: [STEP](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-1-4-20x12_7.step) · [STL](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-1-4-20x12_7.stl) — ruthex RX-1/4-20x12.7: 1/4-20, Ø8.7 knurl, tip Ø7.9, 12.7 long; print hole Ø8 × ≥13.7, wall ≥ 3.3
- insert-rx-3-8-16x12_7: [STEP](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-3-8-16x12_7.step) · [STL](https://xemstudio.com/files/hardware/heat-set-inserts-ruthex/insert-rx-3-8-16x12_7.stl) — ruthex RX-3/8-16x12.7: 3/8-16, Ø12.6 knurl, tip Ø11.8, 12.7 long; print hole Ø11.9 × ≥13.7, wall ≥ 6

## Questions

**ruthex M3 × 5.7 hole?**

Ø4.0 (same as CNC Kitchen's M3 × 5.7), 1.6 wall.

## Fits with

- [Heat-set threaded inserts, metric: M2 to M10, standard, short and Voron (CNC Kitchen sizes)](https://xemstudio.com/objects/heat-set-inserts/)
- [Heat-set threaded inserts, inch: #2-56 to 3/8-16 and G1/8 (CNC Kitchen sizes)](https://xemstudio.com/objects/heat-set-inserts-inch/)
- [Heat-set insert holes: hole cutters and test bosses for every insert size](https://xemstudio.com/objects/heat-set-insert-holes/)