This Double Secured Crown Nut with slot is a crucial component in the steering transmission system, suspension system, and axle structure of automobiles. Its main function is to fix components such as the steering tie rod end or ball joint, and it can also be firmly locked by an open pin.
Once you tighten the slotted round head nut to the appropriate torque value, its slot will align with the hole on the bolt. Then you can insert an open pin into it, which will prevent the nut from rotating when it should not. This safety setting is crucial for vehicle safety - it ensures that these important connections remain tight even under continuous vibration and moving loads.
In agricultural machinery such as tractors, combine harvesters and plows, Double Secured Crown Nut with slot are widely used - mainly for the rotating points and connection parts that bear huge pressure. These machines need to withstand very intense vibration and impact loads in their working environment.
The reliability of slot-shaped round head nuts is extremely important here, as it provides an easy-to-check locking method and is a sturdy and reliable locking device. You just need to pass a split pin through the slot of the round head and the bolt - this will prevent the nut from loosening. As a result, agricultural equipment can maintain normal operation and a safe state, even in harsh conditions in the field.
Mon | M18 | M20 | M22 | M24 | M27 | M30 | M33 | M36 |
P | 1.5|2 | 1.5|2 |
1.5|2 |
1.5|2 |
1.5|2 |
1.5|2 |
1.5|2 |
1.5|2|3 |
d1 max | 25 | 28 | 30 | 34 | 38 | 42 | 46 | 50 |
d1 min | 24.16 | 27.16 | 29.16 | 33 | 37 | 41 | 45 | 49 |
e min | 29.56 | 32.95 | 37.29 | 39.55 | 45.2 | 50.85 | 55.37 | 60.79 |
k max | 23.6 | 26.3 | 29.8 | 31.9 | 34.7 | 37.6 | 41.5 | 43.7 |
k min | 22.76 | 25.46 | 28.96 | 30.9 | 33.7 | 36.6 | 40.5 | 42.7 |
n max | 5.7 | 5.7 | 6.7 | 6.7 | 6.7 | 8.5 | 8.5 | 8.5 |
n min | 4.5 | 4.5 | 5.5 | 5.5 | 5.5 | 7 | 7 | 7 |
s max | 27 | 30 | 34 | 36 | 41 | 46 | 50 | 55 |
s min | 26.16 | 29.16 | 33 | 35 | 40 | 45 | 49 | 53.8 |
w max | 17.6 | 20.3 | 21.8 | 23.9 | 26.7 | 28.6 | 32.5 | 34.7 |
w min | 16.9 | 19.46 | 20.5 | 23.06 | 25.4 | 27.76 | 30.9 | 33.7 |
Q: What is the primary function of a Double Secured Crown Nut with slot?
A:The main job of a Double Secured Crown Nut with slot is to lock tight onto a threaded bolt or stud—so it doesn’t come loose when there’s vibration. It has that crown (or castellated, like with little notches) design that lets you slide a cotter pin or safety wire through the slots and a hole in the bolt. That creates a solid mechanical lock that won’t slip.
That’s why this slotted crown nut is a must for safety-important jobs, like in the automotive or aerospace industries.