Dear Hayam,

Cuticle structure of nematodes is various.

The biggest nematode in Hungary is the about 10 cm (70-120 mm) long Paralongidorus maximus (Longidoridae), an agricultural pest but it is not squamate.  

Here you can find some relevant information:

http://www.wormbook.org/chapters/www_cuticle/cuticle.html

Your individual must be a parasitic species.

Thank you so much