​They look very much like your roller
84-002 except the short shaft on the right of the roller is bent a bit on ours . .whereas yours looks to be straight. It is in this bent portion that the screw goes into the frame of the screen door. The dimensions of ours match your nearly. The roller is 1 1/4", the metal body is 1 14/16 long, the width of the metal portion is 7/8". And the length of the spring shaft is 2 5/8".
We need 4 badly. Can you please let us know IF you have them . . and if not, please also tell us you do not.