Din 439 Lock Nuts are standard nuts with a reduced height in comparison to the hexagon full nut. Also known as ‘lock’ nuts, they are commonly used with any male fastener with the same thread diameter and pitch, used to mate a stack or single part together.
Following are the specification for DIN 439 Lock Nuts.
d1 | s | e | m |
---|---|---|---|
M2 | 4 | 4.32 | 1.2 |
M3 | 5.5 | 6.01 | 1.8 |
M4 | 7 | 7.66 | 2.2 |
M5 | 8 | 8.79 | 2.7 |
M6 | 10 | 11.05 | 3.2 |
M8 | 13 | 14.38 | 4 |
M10 | 17 | 18.9 | 5 |
M12 | 19 | 21.1 | 6 |
M14 | 22 | 24.49 | 7 |
M16 | 24 | 26.75 | 8 |
M18 | 27 | 29.56 | 9 |
M20 | 30 | 32.95 | 10 |
M22 | 32 | 35.03 | 11 |
M24 | 36 | 39.55 | 12 |
M27 | 41 | 45.2 | 13.5 |
M30 | 46 | 50.85 | 15 |
M33 | 50 | 55.37 | 16.5 |
M36 | 55 | 60.79 | 18 |
All measurements are in millimetres(mm).