The socket/bracket used on the passenger's side is longer than the driver's side, plus the driver's side socket/bracket is the same as 64-66. My notes include that the screw, 374121-S2, is not listed in the AMK Guide. However, in 68 (and 69) they used 55927-S36, 8-18X1/2 pan head screw which may be what you should consider. The RH socket/bracket does not show hardware in either 67 or 68, but may use the RH screw for the glove box hinge to lower dash.
Jim