Latitude 5540 Owner's 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 computers have magnetic surfaces. Ensure that the screws are not left attached to such surfaces when replacing a component.

NOTE:Screw color may vary with the configuration ordered.

Table 1. Screw listThe following table provides the different screws that are used in your Latitude 5540.
Component	Screw type	Quantity	Screw image
5G WWAN bracket	M2x3	1
5G WWAN thermal shield	M2x3	2
M.2 2230 Solid-state drive in Slot 1 and Slot 2	M2x3	1
Solid-state drive thermal shield in Slot 1	M2x3	2
Assembly-inner frame	M2x3	12
System fan	M2x4	2
Heat sink	M2x4	1
Display cable	M2x3	2
Type-C bracket	M2x4	3
System board	M2x3	3
Power button	M2x2.5	2
Keyboard	M2x2	21
Display assembly	M2x3	2
Display panel	M2.5x3.5	4
Display hinges	M2.5x3.5	2
Fingerprint-reader bracket	M2x3	1
Smart-card reader	M2x2	2