UNI 5583 - Hexagon Slotted Castle Nuts
UNI 5583 is cross-listed with DIN 935 for hexagon slotted and castle nuts. The drawing marks the thread, across-flats and across-corners dimensions, nut height, crown height and slot width.
Selected coarse-thread dimensions (mm)
| Thread | Pitch P | Across corners e min. | Body height m max. | Crown height w max. | Slot width n min. | Across flats s max. | Across flats s min. |
|---|---|---|---|---|---|---|---|
| M6 | 1.0 | 11.05 | 7.5 | 5 | 2.00 | 10 | 9.78 |
| M8 | 1.25 | 14.38 | 9.5 | 6.5 | 2.50 | 13 | 12.73 |
| M10 | 1.5 | 17.77 | 12 | 8 | 2.80 | 16 | 15.73 |
| M12 | 1.75 | 20.03 | 15 | 10 | 3.50 | 18 | 17.73 |
| M14 | 2.0 | 23.35 | 16 | 11 | 3.50 | 21 | 20.67 |
| M16 | 2.0 | 26.75 | 19 | 13 | 4.50 | 24 | 23.67 |
| M18 | 2.5 | 29.56 | 21 | 15 | 4.50 | 27 | 26.16 |
| M20 | 2.5 | 32.95 | 22 | 16 | 4.50 | 30 | 29.16 |
| M22 | 2.5 | 37.29 | 26 | 18 | 5.50 | 34 | 33.00 |
| M24 | 3.0 | 39.55 | 27 | 19 | 5.50 | 36 | 35.00 |
| M27 | 3.0 | 45.20 | 30 | 22 | 5.50 | 41 | 40.00 |
| M30 | 3.5 | 50.85 | 33 | 24 | 7.00 | 46 | 45.00 |
This selected table follows the published DIN 935-1:2013 dimensional reference cross-listed for UNI 5583. It does not replace checking the governing UNI edition or full specification for production.
References: Fastener catalogue cross-reference (UNI 5583 / DIN 935); DIN 935-1:2013 dimensional reference.