securing link

13:05 Apr 13, 2018 

Not necessarily!
It's important to remember that between EN and FR, there is often a difference between one that describes the form of a component, while the other describes the function (and v-v) — so it is perfectly possible for things to have a similar function 'link', but different forms, dictating their name in FR. For example, a 'bielle' in FR is a 'connecting rod' ('conrod') in EN, when referring to its use in a reciprocating I/C engine; but it will have different translations when used in other fields.
So I suspect it is likely that some at least of these links that are being secured will indeed have different names in FR.

12:53 Apr 13, 2018 

in all the examples I have given, according to you "link" doesn't have the same meaning?

12:52 Apr 13, 2018 

ok

12:50 Apr 13, 2018 

Yes, but here, generally, that's not its FUNCTION — in most of these cases, it is not specifically there to "transmit motion"; more usually to in some way stabilize something, like an 'étai' or 'jambe de force', for example

12:39 Apr 13, 2018 

bielle = (Mécanique) Tige rigide, articulée à ses deux extrémités, servant à communiquer ou à transformer le mouvement entre deux pièces mobiles.

12:37 Apr 13, 2018 

I think it is "biellette" I am not sure. Biellette (petite bielle).

12:37 Apr 13, 2018 

Bolt, securing Link
Bolt, securing Link No. 1 to Canopy Rail
Bolt, securing Link to Bearing Brackets
Bolt, Securing Links To Anti-Roll Bar
Bolt, Securing Links To Front Lower Wishbone Levers
Bolt, securing Links to Radius Arms

12:32 Apr 13, 2018 

Where are you finding 'biellette' in your source text? There is no such 'link' of that type in this part of a car.

12:10 Apr 13, 2018 

Boulon permettant de fixer la biellette n°1 ...ou Boulon de fixation

07:17 Apr 13, 2018 

Throughout this parts list, you seem to be getting confused in your parsing: this way of expressing a list with the most important word first, followed by a comma, arises I suspect from an older military usage, where we find things like "mug, sergeants for the use of". This has been used many times in the past by comedians in a jocular way, and still figures today occasionally in metaphorical expressions far rmoved from the original military context.

Here's a rather poignant real example I just found on the 'Net (it's not easy to serach for!):

Prayer, Staff Officers for the use of - The Naval Review
https://www.naval-review.com/.../prayer-staff-officers-for-t...
Prayer, Staff Officers for the use of. Ferreting through my father's memoirs the following has come to light – must be circa 1940s. FORM OF DAILY SERVICE FOR USE OF GOVERNMENT DEPARTMENTS AND STAFF OFFICERS...

So you need to expand this to read "Bolt used to secure Link No. 1 to Canopy Rail" — there is no such thing as an actual 'securing link' involved here.