HP TC4400 - Manual (Page 164)

A–6 Maintenance and Service Guide
Screw Listing
Torx8 T8M2.0×10.0 Screw Locations
Table A-4
Torx8 T8M2.0×10.0 Screw (Continued)
Color Qty. Length Thread
Head
Width
Black 12 10.0 mm 2.0 mm 4.5 mm
Where used:
3 screws that secure the keyboard to the tablet PC (documented in Section 5.9 )
mm