Vargal® — self-locking nut
Self-locking nut with an external stainless spring that compresses the collar radially.
Dimensions by version
Dimensions in mm. Standard and low versions have different heights. M12 rows with 1.25 pitch are separate. Complete part numbers depend on material, finish and prevailing torque.
Standard
| Thread d | Coarse pitch | Fine pitch | Across flats s | h max. | m min. |
|---|---|---|---|---|---|
| M5 | 0.8 | — | 8 | 6.3 | 3.9 |
| M6 | 1 | 0.75 | 10 | 8.2 | 4.4 |
| M8 | 1.25 | 1 | 13 | 10.8 | 6.6 |
| M10 | 1.5 | 1.25 | 17 | 12.6 | 7.9 |
| M12 | 1.75 | 1.5 | 19 | 16 | 10.4 |
| M12 | — | 1.25 | 19 | 16 | 10.4 |
| M14 | 2 | 1.5 | 22 | 18 | 11.8 |
| M16 | 2 | 1.5 | 24 | 20.6 | 13.3 |
| M18 | 2.5 | 1.5 | 27 | 22.5 | 14.3 |
| M20 | 2.5 | 1.5 | 30 | 25.5 | 16.5 |
| M22 | 2.5 | 1.5 | 32 | 29.8 | 19.5 |
| M24 | 3 | 2 | 36 | 29.9 | 20 |
| M27 | 3 | 2 | 41 | 33.7 | 23.3 |
| M30 | 3.5 | 2 | 46 | 37 | 26.4 |
| M33 | 3.5 | 2 | 50 | 40.5 | 28.5 |
| M36 | 4 | 3 | 55 | 44.2 | 31.2 |
Low
| Thread d | Coarse pitch | Fine pitch | Across flats s | h max. | m min. |
|---|---|---|---|---|---|
| M6 | 1 | 0.75 | 10 | 6.3 | 2.5 |
| M8 | 1.25 | 1 | 13 | 8.1 | 3.9 |
| M10 | 1.5 | 1.25 | 17 | 9.6 | 4.9 |
| M12 | 1.75 | 1.5 | 19 | 11.4 | 5.8 |
| M12 | — | 1.25 | 19 | 11.4 | 5.8 |
| M14 | 2 | 1.5 | 22 | 13 | 6.8 |
| M16 | 2 | 1.5 | 24 | 14.6 | 7.3 |
| M18 | 2.5 | 1.5 | 27 | 16.5 | 8.3 |
| M20 | 2.5 | 1.5 | 30 | 18.1 | 9.1 |
| M22 | 2.5 | 1.5 | 32 | 20.1 | 10.6 |
| M24 | 3 | 2 | 36 | 20.7 | 10.7 |
| M27 | 3 | 2 | 41 | 22.2 | 11.8 |
| M30 | 3.5 | 2 | 46 | 24.7 | 14.1 |
| M33 | 3.5 | 2 | 50 | 27.2 | 15.3 |
| M36 | 4 | 3 | 55 | 30 | 17.1 |
The locking system
Resistance to vibration and dynamic loading.
Reusable; limited friction scatter from the locking system.
| Locking element | External stainless steel spring |
|---|---|
| Temperature: Vargal® 10 | -50 °C to +300 °C; check actual operating conditions. |
| Documented options | Cr3 clear zinc plating, Geomet 500B, or stainless nut and spring. |
Size, pitch and material, class and finish combination must be confirmed against the requested original part number. No stock availability is implied.
Application selection
For industrial machinery, maintenance and electromechanical assemblies, assess vibration, temperature, mating bolt and tightening procedure. Suitability is determined for the specific joint.
Industrial machinery & OEM → · HVAC & electromechanical →Manufacturer and documentation
This document describes an original Gally® family. Its performance is not attributed to equivalent products from other manufacturers.
Gally® — the brand →View official Gally® documentation ↗
Dueemme technical summary, not a manufacturer certificate.