M6x12.7 Heat-set Insert (Threaded Insert For Printed Parts), Heat-set threaded insert
The M6x12.7 heat-set insert (Heat-set threaded insert): length 12.7 mm, knurl outside diameter 8.7 mm, pilot diameter 7.9 mm. Available as simplified and threaded STEP files.

How these parts are made, and what the levels mean: read the method
- Also searched as: M6x12.7 insert
- Model id:
heat-set-inserts-m6x12-7
- Standard: Heat-set threaded insert · size M6x12.7
Files
| Part key | Simplified | Threaded |
|---|
heat-set-inserts-m6x12-7 | STEP | STEP |
Dimensions

| Symbol | Name | min | nom | max | Modeled | Rule | Level |
|---|
| L | Length | | 12.7 | | 12.7 | nominal | L1 |
| d1 | Knurl outside diameter | | 8.7 | | 8.7 | nominal | L1 |
| d2 | Pilot diameter | | 7.9 | | 7.9 | nominal | L0 (nom: one source) |
Drawing

As a PDF: CC-HSINSERT-SZ-M6x12.7.pdf.
What each maker states
- Recommended hole, per maker: CNC Kitchen 8.1 mm, RS PRO 8.0 mm, ruthex 8.0 mm.
- Wall around the hole, per maker: CNC Kitchen 3.3 mm, RS PRO 3.3 mm, ruthex 3.3 mm.
- Minimum hole depth, per maker: CNC Kitchen 13.7 mm, ruthex 13.7 mm.
- The hole depth is each maker's callout on its drawing added to that maker's L, read twice by Claude, and the two reads agree.
- CNC Kitchen's values for this size are figure reads: its table is an image, read twice by Claude, and the two reads agree.
The M6x12.7 heat-set insert beside the M6x6.8 and the M8x12.7
The M6x12.7 is number 14, counting from the smallest, of the 15 Heat-set threaded insert heat-set inserts published here, from M2x3 to M8x12.7.
- Length (L): 12.7 mm on the M6x12.7 heat-set insert, against 6.8 mm on the M6x6.8 and 12.7 mm on the M8x12.7.
- Knurl outside diameter (d1): 8.7 mm on the M6x12.7 heat-set insert, against 8.7 mm on the M6x6.8 and 10.1 mm on the M8x12.7.
- Pilot diameter (d2): 7.9 mm on the M6x12.7 heat-set insert, against 7.9 mm on the M6x6.8 and 9.5 mm on the M8x12.7.
Other sizes
Documents
Sources
cnckitchen-inserts, rspro-inserts, ruthex-inserts. Full citations: the method page and this size's datasheet.
Found an error? Use the feedback section on this page.