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Nyloc lock nuts, M2.5–M8 (DIN 985)
How thick is an M3 nyloc nut? · Hardware · basis: DIN 985 / ISO 10511 (thin type is lower; values are the common DIN 985)
- sizes
- 6 in table
Notes
- Same across-flats as a plain nut, taller because of the nylon collar: M3 is 4.0 mm vs 2.4 mm plain. Size a nut pocket to the full height.
- Not reusable more than a few times; don't rely on them on a printed part that will be opened often.
Sizes
| thread | width_af_mm | height_mm |
|---|---|---|
| M2.5 | 5.0 | 2.9 |
| M3 | 5.5 | 4.0 |
| M4 | 7.0 | 5.0 |
| M5 | 8.0 | 5.0 |
| M6 | 10.0 | 6.0 |
| M8 | 13.0 | 8.0 |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| McMaster-Carr | Nylon-insert locknuts (free STEP/IGES/STL per part, for your own design use; no redistribution) | STEP, IGES, STL, PDF | McMaster-Carr site terms: personal design use, no redistribution verify |
| Wikipedia | Nyloc nut | web | CC BY-SA 4.0 (text) |
Free files
★ Free files 6 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json
| nyloc-m2.5 | DIN 985 M2.5, 5.0 AF × 2.9 high | STEP · STL |
| nyloc-m3 | DIN 985 M3, 5.5 AF × 4.0 high | STEP · STL |
| nyloc-m4 | DIN 985 M4, 7.0 AF × 5.0 high | STEP · STL |
| nyloc-m5 | DIN 985 M5, 8.0 AF × 5.0 high | STEP · STL |
| nyloc-m6 | DIN 985 M6, 10.0 AF × 6.0 high | STEP · STL |
| nyloc-m8 | DIN 985 M8, 13.0 AF × 8.0 high | STEP · STL |
Plain text: sheet.txt · JSON: /api/geometry?object=nyloc-nuts-metric
Fits with
Questions
How tall is an M3 nyloc nut?
4.0 mm (5.5 mm across flats); an M4 is 5.0 mm (7 AF), M5 5.0 mm (8 AF), M6 6.0 mm (10 AF), M8 8.0 mm (13 AF).
Can I print a pocket for a nyloc nut?
Yes: AF + 0.3 mm, depth = nut height + 0.3 mm. The nylon collar must face away from the screw entry.