Acer X1278H Series User Manual page 45

5 Adjust the angle and positioning as necessary.
Note: The appropriate type of screw and washer for each model is
listed in the table below. 4 mm diameter screws are enclosed in
the screw pack.
Screw Type B
Diameter (mm)
4
SCREW SPEC. M4 x 25 mm
Tightening Screw
Allen Key
Allen Key
Tightening Screw
Length (mm)
25
Washer Type
Large Small
V V
35