HP nw9440 Maintenance And Service Manual page 154

Removal and Replacement Procedures
18. Remove the four mylar screw covers 1 and the four Torx8
T8M2.5×4.0 screws 2 that secure the display panel to the
display enclosure.
✎
The mylar screw covers are available in the Display Screw Kit,
spare part number 409940-001.
Removing the Display Panel Screws, Part 1
5–54 Maintenance and Service Guide