If you’re maintaining parts that use Overload Proof Crown Nut With Slot, most of the work is just looking them over. Check that the cotter pin’s legs are bent right and not broken, or that the safety wire is still in one piece, tight, routed correctly, and not frayed. Special inspection should be carried out on the slotted crown nuts and adjacent fasteners to check for excessive corrosion (depth > 0.1mm, etc.) and irreversible bending of the main body, and to verify that the thread profile has no damage such as slippage and broken teeth. If any pins or wires are damaged, replace them right away. If you think the nut or bolt is damaged, check those too. If they were put on correctly in the first place, you almost never need to retighten them.
If the Overload Proof Crown Nut With Slot is made with the right materials, treated properly, put on correctly, and checked regularly, it’ll last a long time and stay reliable. Its locking mechanism is purely mechanical—unlike some other types, it doesn’t wear out over time, even with extreme temperatures or chemical exposure. The design is sturdy, so it keeps a tight hold and stops from loosening for as long as the assembly is in use. That’s good to know, especially for important applications.
| Mon | M20 | M24 | M30 | M36 |
| P | 1.5|2|2.5 | 1.5|2|3 | 1.5|2|3.5 | 1.5|2|3|4 |
|
d1 max |
28 | 34 | 42 | 50 |
| d1 min | 27.16 | 33 | 41 | 49 |
| e min | 32.95 | 39.55 | 50.85 | 60.79 |
| k max | 24 | 29.5 | 34.6 | 40 |
| k min | 23.16 | 28.66 | 33.6 | 39 |
| n min | 4.5 | 5.5 | 7 | 7 |
| n max | 5.7 | 6.7 | 8.5 | 8.5 |
| s max | 30 | 36 | 46 | 55 |
| s min | 29.16 | 35 | 45 | 53.8 |
| w max | 18 | 21.5 | 25.6 | 31 |
| w min | 17.37 | 20.88 | 24.98 | 30.38 |
Q:What is the typical production lead time for a standard Overload Proof Crown Nut With Slot order?
A:For our Overload Proof Crown Nut With Slot in common sizes and finishes, the usual time to make them and get them ready to ship (FOB port) is about 25 to 35 days. That starts after we confirm your order and get the deposit. It includes making them, checking the quality, and packing. If you order a lot, need custom specs, or special coatings, it might take longer. Once you place the order for the slotted crown nuts, we’ll give you an exact timeline.