Bonnet release catch handle screw

[CDES]

I've just managed to get a hold of a replacement bonnet release catch for the passenger footwell, it looks like it should be secured in place?
Anybody any idea if it is a screw or bolt to secure it, and to either one, what size is it that I would require?

 

[Hodgins]

If i remember its a torx bolt, unsure on dize though im afraid