The NPT works the other way around. It is a bargain between the nuclear weapons powers and the non-weapon powers. Non-weapon powers get access to civilian nuclear technology and know-how in exchange for a promise (and safeguards) to not develop weapon systems. Additionally weapon powers agree to negotiate towards an end to all nuclear weapons (but in a very woolly, no real commitment kind of way).
Non signers get no access to any technology or know-how from signers but are free to act as they please. Israel, Pakistan and India all fall into this category. They can act as they please.
Non signers get no access to any technology or know-how from signers but are free to act as they please. Israel, Pakistan and India all fall into this category. They can act as they please.