Latitude 5520 Service Manual

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Screw list

NOTE: When removing screws from a component, it is recommended to note the screw type, the quantity of screws, and then place them in a screw storage box. This is to ensure that the correct number of screws and correct screw type is restored when the component is replaced.

NOTE: Some systems have magnetic surfaces. Ensure that the screws are not left attached to such surface when replacing a component.

NOTE: Screw color may vary with the configuration ordered.

Table 1. Latitude 5520 screw listThe following table provides the screw list:
Component	Screw type	Quantity	Screw image
Base cover	Captive screws	8
WLAN card bracket	Captive screw	1
WWAN card bracket	Captive screw	1
M.2 2230 solid-state drive	M2x4	1
M.2 2280 solid-state drive	M2x4	1
Assembly inner frame	M2x3	12
3-cell battery	M2x4	2
4-cell battery	M2x4	3
System Fan	M2x3	2
Heat sink—integrated	M2x3 Captive screws	1 - M2x3 4 - captive screws
Heat sink—discrete	M2x3 Captive screws	1 - M2x3 7 - captive screws
eDP cable/bracket	M2x3	2
USB Type-C support bracket	M2x4	3
System board	M2x3	3
Power button	M2x2	2
Smart card reader	M2x3	2
LED board	M2x3	1
Keyboard assembly	M2x2	26
Keyboard bracket	M2x2	10
Display assembly	M2.5x5 (display hinge to palm-rest assembly)	6
Display hinge	M2.5x3.5 (display hinge to display back cover)	4
Display panel	M2.5x3.5	4