The screw coil is:
Green = start of the coil winding
Red = finish
The slug coil is:
White = finish
Black = start.
Connect a Green wire to the black wire from the screw coil that is going to the inside of the coil (the start of the winding).
Connect a Red wire to the black wire from the screw coil that is coming off the top of the coil (finish).
Connect a Black wire to the black wire from the slug coil that is going to the inside of the coil winding (start).
Connect a White wire to the other black wire of the slug coil coming off the top of the coil (finish).
The Green wire will be the ground. The two coil finish wires (Red and White) are used to split to the slug coil when both are grounded. They are also useful for linking the two coils in series, parallel, or out of phase. The Black wire is the lead/hot wire.
https://www.seymourduncan.com/images/wiring-diagrams/WD_Pickup_Color_Codes.jpg