For Ternes steel bifold doors made approx. 1972. Also need replacement knobs
Paul from SWISCO responded:
November 13, 2018
It's tough to be sure what you have without dimensions, but look at our 21-005, 5/16" plain pin with a 3/8" cap and compare it to yours. This may be what you want. If you need a spring and palnut, see our 21-065 instead.