Can I use a thru axle with a longer pitch when the manufacturer specifies a smaller one? I bought a frame which didn't had the axle (lynskey cooper cx). The one which lynskey sells is 142x12x1pitch. 

I'm from europe and I can't find any axle with the same specs, furthermore a lot of websites don't even mention this third measure, is it possible to use an axle with 1.5, 1.6 or 1.75 pitch instead?

Edit: Thanks to Argenti's answer I've seen that I understood wrong the terms. But I'm still having difficulties. The answer of the manufacturer is the following:
12x142 Axle Specifications:

12x142x1.0TP

12mm Diameter
142mm Hub Spacing
1.0 Thread Pitch
Overall Length of 166mm +/- 2mm


Using the link that Argenti provided, I can't see many options which fulfill this requirements, those would be:

 Kcnc   Indexing – Syntace X12  Tapered     167mm   12×1    19mm
 Rear “Scott” Standard 12×142


But still all of them have different total thread length
I think you are perhaps confusing the thread pitch with the length of the threaded section of the axle - as your title says 'axle with a longer pitch'. The pitch is the distance between threads in mm.

You definitely cannot use a through axle with a different thread pitch than your frame, it would not screw into the threaded right hand dropout.

To figure out a compatible through axle, you need to know:


Total length - which depends on the hub width and thickness of dropouts
Length of threaded section - the match the right dropout
Pitch 


You already know the pitch1, hub width is 142mm, dropouts can be measured. Armed with that info you should be able to find a matching axle.

Here's a resource I find helpful: http://blog.fairwheelbikes.com/reviews-and-testing/high-end-skewer-review/all-about-thru-axles/