Most manufacturers produces crimped and straight lead pairs of their capacitors which has exactly same capacitance and voltage rating. Why do they bother crimping the leads? What advantage does it make? In which cases a crimped lead capacitor should be preferred?
Ceramic capacitors are rather brittle and so they do not like their leads getting tugged on. Adding these crimps forces the capacitor to sit off the board with a few mm of relatively flexible lead in between. This will isolate the capacitor from forces that it would otherwise experience during vibration, board flexing/bending, thermal expansion/contraction, etc. By providing the crimped leads at the factory, the board house does not require a machine to add those in-house.
It's to space the capacitor up off the board so that undue stress is not placed on the ends of the capacitor (for example, if the lead spacing in the board holes is not exactly the same as the lead spacing on that particular capacitor, or if the thermal coefficient of expansion is different from that of the PCB).
As well as your pictured film capacitors, you'll find similar kinks in ceramic disc capacitor, thermistors, MOVs and similar parts.
Here you can see it clearly called a "hold off" kink on a disc capacitor.
Some other parts- NTC (Negative Temperature Coefficient) thermistors:
The capacitors you pictured are epoxy dipped, but the early laquer dipped ones were even more susceptible to damage from too much force on the leads. This should bring back some bad memories for oldsters here:
As the capacitors pictured are film capacitors, using the crimp to stand them off the board will help to keep their temperature below the melting point of the film during soldering.
