I think Product Support may have misunderstood the question. There is no way you can use both of the supplied plates with this handle. I could be wrong, but I think the reason for the two slots in the handle is so that the window can be locked fully closed or slightly ajar to allow ventilation. As for the two latch plates, these have slightly different base profiles, so I guess they are intended for two different types of frame... I can understand the one with the flat base, but the other one is thicker along one edge and has two small pips... strange?!?! A brief instruction sheet would be useful.
Answered by: Apollo11
Date published: 2017-10-15