Part number/FINIS Code is....
1152010 Cover £50.82 GBP
1152011 Stud-Special (3 required)
£1.57 GBP
These are UK codes, not sure if they are the same over there.
The only challenge is that the studs are internally threaded to screw onto a modified bolt that hold the UIM in place. Ford DO NOT stock, or sell these bolts (!!!) so i had to make up some using M10 threaded bar, nylon lock nut to secure the UIM then threaded the stud on top.