Chosen Solution

can the screws for the iPhone 6s fit for the iPhone 7 plus.

Hi Emily, almost every screw in the iPhone 6s is different to the counterparts in the 7 Plus. However the bottom screws next to the charging port are the same. You can get the full screw Set for the 6s here and the set for the 7 plus here.

yes they can be used i have done it before but i recommend getting some iPhone 6 screws

Yes. Apple uses pentalobe screws to hold the folder and screen which is same for all models