Top screw on the wing or vent window frame on any 1967-68 Mercury Cougar or Ford Mustang. Screw attaches the door glass run insert to the chromed vent frame at the top. Screw accessible when door is open top leading edge of wing window frame.
*Item of Note - screw is slightly too long. The tip could scratch the front edge of the door glass or chrome trim on top of the door window. We suggest grinding down the tip about 1/8 inch, prior to installation. We have looked and this is the only compatible screw commercially available. Looking carefully at the OEM screws, they look like they may have had the tips broken off.
#6-18x3/8 Flat Head Screw - Stainless steel.