Is this long thread male without stopper to female connection tight & leak free?

I want to connect this tap (see picture) to its valve and I have to use a 90-degree elbow (see right side of the picture) to be able to supply water from the top as well as to fix the tap on the wall.

So my question is, will this work? Will it not leak? Is this considered a good connection?

I am worried because the male side does not have a stopper, like the one that couplers have in the middle, so I am assuming that it will leak.

The Tap: Link To Amazon
The Elbow: Link To Screwfix