Window screen spring attachment
A quick learner from Kapaa, Hawaii 96746 says:
December 26, 2015
See picture for special screen spring
Dave from SWISCO responded:
December 29, 2015
I believe the spring in your photo is used to secure the screen to the sill of the window. We do not carry this kind of part, however. I would recommend considering something like our 70-004 or 70-204 as a couple different replacement options. Both types of pull ring use a ball-head nail that secure in the window sill.