[dartman]

What are the best screws to use to stop anyone nicking my number plates.
There has been a few cars around my way who have had them stolen.

 

[Hoops]

Unlikely that any screw will stop somebody who really wants to take them. :|

 

[corsa_mark]

can get some that you put in with a screwdriver but have to drill them out.

 

[CorsaTam]

can get some that you put in with a screwdriver but have to drill them out.

yup you can get these at any autoshop there named "anti-theft number plate bolts"