2 mm Hex Key (Allen Key), ISO 2936
2 mm across flats, with a long arm of 52 mm and a short arm of 18 mm: the 2 mm hex key (ISO 2936), as simplified STEP files.

How these parts are made, and what the levels mean: read the method
- Also searched as: 2 mm hex key
- Model id:
iso2936-s2
- Standard: ISO 2936:2014 · size 2 mm
Files
| Part key | Simplified |
|---|
iso2936-s2 | STEP |
Dimensions

| Symbol | Name | min | nom | max | Modeled | Rule | Level |
|---|
| s | Width across flats | 1.96 | 2 | 2 | 1.98 | midpoint of min–max | L2 |
| e | Width across corners | 2.18 | | 2.25 | 2.215 | midpoint of min–max | L2 |
| l1 | Long arm length, standard | | 52 | | 52 | nominal | L2 |
| l1_lim | Long arm length, standard, limits | 50 | | 52 | 51 | midpoint of min–max | L2 |
| l1_long | Long arm length, long | | 77 | | 77 | nominal | L2 |
| l1_long_lim | Long arm length, long, limits | 75 | | 77 | 76 | midpoint of min–max | L2 |
| l1_xlong | Long arm length, extra-long | | 102 | | 102 | nominal | L2 |
| l1_xlong_lim | Long arm length, extra-long, limits | 100 | | 102 | 101 | midpoint of min–max | L2 |
| l2 | Short arm length | | 18 | | 18 | nominal | L2 |
| l2_lim | Short arm length, limits | 16 | | 18 | 17 | midpoint of min–max | L2 |
Drawing

As a PDF: CC-ISO2936-SZ-2.pdf.
The 2 mm hex key beside the 1.5 mm and the 2.5 mm
The 2 mm is number 2, counting from the smallest, of the 7 ISO 2936 hex keys published here, from 1.5 mm to 6 mm.
- Width across flats (s): 2 mm on the 2 mm hex key, against 1.5 mm on the 1.5 mm and 2.5 mm on the 2.5 mm.
- Width across corners (e): 2.18 to 2.25 mm on the 2 mm hex key, against 1.63 to 1.68 mm on the 1.5 mm and 2.75 to 2.82 mm on the 2.5 mm.
- Long arm length, standard (l1): 52 mm on the 2 mm hex key, against 46.5 mm on the 1.5 mm and 58.5 mm on the 2.5 mm.
- Long arm length, standard, limits (l1_lim): 50 to 52 mm on the 2 mm hex key, against 44.5 to 46.5 mm on the 1.5 mm and 54.5 to 58.5 mm on the 2.5 mm.
- Long arm length, long (l1_long): 77 mm on the 2 mm hex key, against 63.5 mm on the 1.5 mm and 87.5 mm on the 2.5 mm.
- Long arm length, long, limits (l1_long_lim): 75 to 77 mm on the 2 mm hex key, against 61.5 to 63.5 mm on the 1.5 mm and 83.5 to 87.5 mm on the 2.5 mm.
- Long arm length, extra-long (l1_xlong): 102 mm on the 2 mm hex key, against 91.5 mm on the 1.5 mm and 114.5 mm on the 2.5 mm.
- Long arm length, extra-long, limits (l1_xlong_lim): 100 to 102 mm on the 2 mm hex key, against 89.5 to 91.5 mm on the 1.5 mm and 110.5 to 114.5 mm on the 2.5 mm.
The 2 mm hex key in its other versions
Other sizes
Documents
Sources
amesweb-iso2936, fasten-it-iso2936, iso2936-2014-sample. Full citations: the method page and this size's datasheet.
Found an error? Use the feedback section on this page.