Lock screw? Assa window lock 2820

[Tunggung]

Hello!
I've got a pair of window locks: assa 2820. My problem is that the screws I've received are some special variant without cross slots, etc. What do I need to be able to screw them in?

Best regards

 

[123abc]

A trace screwdriver is a one-way screw and can only be screwed in. Test with regular screws that everything works before you screw in the one-way screw, so you know that everything fits and works.

 

[Yrrol]

It's boring to remove them later, I usually use regular screws unless it's a place with insurance that requires them. More likely the thief will choose another way regardless of the screws, so it feels unnecessarily complicated.

 

[Tunggung]

Okay! Thanks for the answers!
No, it's hardly likely that the thief would go to that trouble
but at least now I know what it's called and what it is anyway!
Regards