67 Dart Convertible Rescue

JDMopar said
On our 69 Dart conv, that screw holds down a clamp on an AC hose that runs to the condenser. Your car is an AC car too, so that is probably what it’s for

On the driver's side?

Just saw your photo.

Can you get me one from farther away?

All the AC was missing except a the under dash parts, a beat up condenser, the receiver dryer, the crank pulley and the idler pulley