Automaticly set permissions for new files and folders in a share

Hi im having trouble with some permission settings for 1 share.
i set it to user:Scarpal rwx group:readers r-- others:—
and when i apply it everything gets changed as it should be, but is there a way to automaticly set this permission to every new file wich gets created or copied to this location?

Well it depends.

Do other users need to write?
If not put them in a group which then has read-only permissions.

Use NFSv4 ACL type for the dataset and set the relevant permission to inherit.