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Dell Inspiron 15 5575 laptop screw size

M2 / M2.5 / M3 · 2 to 7 mm long

The screws used on Dell Inspiron 15 5575 laptop are M2, M2.5 and M3 in lengths from 2 to 7 mm.

There are 8 separate fitment records for it, including screw securing optical-drive assembly to base, and securing hinges/display panel/touchpad/ (M2), screws securing optical-drive bracket, battery, wireless-card bracket, hard-drive assembly (M2) and screws securing base cover to palm rest, I/O board, system board to palm rest (M2), plus 5 more in the table below.

8 of the 8 records are marked confirmed, drawn from 1 source (dl.dell.com).

For reference, M2 is 2 mm across the threads at 0.4 mm pitch. The imperial size people confuse it with: #2-56 UNC (2.18 mm) is close but not interchangeable.

Dell Inspiron 15 5575 laptop screw specifications

One row per fitment record. Head, drive are shown only where the source states them; pitch is the ISO coarse pitch for the thread.

ThreadLengthPitchHeadDriveWhere it goesStatus
M22 mm0.4 mmnot statednot statedScrew securing optical-drive assembly to base, and securing hinges/display panel/touchpad/power button in various stepsConfirmed
M23 mm0.4 mmnot statednot statedScrews securing optical-drive bracket, battery, wireless-card bracket, hard-drive assembly, heat sink, touchpad, power-button boardConfirmed
M24 mm0.4 mmnot statednot statedScrews securing base cover to palm rest, I/O board, system board to palm restConfirmed
M22.2 mm0.4 mmnot statednot statedScrew securing mSATA solid-state drive (in computers shipped with mSATA SSD)Confirmed
M2.52.5 mm0.45 mmnot statednot statedEight screws securing hinges to display backcover and antenna assemblyConfirmed
M2.55 mm0.45 mmnot statednot statedScrews securing fan, left/right hinges to palm rest and system boardConfirmed
M2.57 mm0.45 mmnot statednot statedSix screws securing base cover to palm restConfirmed
M33 mm0.5 mmnot statednot statedFour screws securing hard-drive bracket to hard driveConfirmed

Fitment records and sources

M22mmhigh

Screw securing optical-drive assembly to base, and securing hinges/display panel/touchpad/power button in various steps

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M23mmhigh

Screws securing optical-drive bracket, battery, wireless-card bracket, hard-drive assembly, heat sink, touchpad, power-button board

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M24mmhigh

Screws securing base cover to palm rest, I/O board, system board to palm rest

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M22.2mmhigh

Screw securing mSATA solid-state drive (in computers shipped with mSATA SSD)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M2.52.5mmhigh

Eight screws securing hinges to display backcover and antenna assembly

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

M2.55mmhigh

Screws securing fan, left/right hinges to palm rest and system board

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

M2.57mmhigh

Six screws securing base cover to palm rest

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

M33mmhigh

Four screws securing hard-drive bracket to hard drive

pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10

How to check the screw before you buy

  1. Laptop covers and brackets often mix two or three lengths of the same thread, so lay the screws out in the order they came out (a magnetic mat or a sheet of paper with the hole pattern drawn on it works).
  2. Diameter: across the threads an M2 screw measures about 2 mm with calipers (usually a hair under). This device also uses M2.5 / M3, so measure each screw rather than assuming they match.
  3. Pitch: 0.4 mm from one thread crest to the next (25 crests per centimetre). A thread pitch gauge or the pitch-gauge tool settles it in seconds.
  4. Length: measure from under the head to the tip for pan, button, wafer and cap heads; countersunk (flat) heads are measured overall.
  5. The records span 2–7 mm, which means different positions take different lengths — match each hole to its own screw.
  6. Driver: the source does not name the drive. Standard M2 heads take PH0 for Phillips and T6 for Torx, and a 1.5 mm hex key for socket heads; a bit that fits loosely will cam out and strip the head.
  7. Tightening: no device-specific torque is published in these records. The site's general figure for M2 is about 25-40 N·cm into metal threads and 12-20 N·cm into plastic bosses; snug it up and stop.

Common mix-ups with M2 / M2.5 / M3

  • M.2 SSD mounting screws (M2 x 3mm) are frequently mislabeled generically as 'M.2 screws' which can be confused with the M2 metric thread designation — they do coincide numerically here but are conceptually distinct (M.2 = card format, M2 = thread size).
  • Dell/HP/Lenovo manuals often list screws only by torque or head shape, so community teardowns are needed for diameter.
  • LED strip clips strip easily — M3x12 into thin plastic should be hand-driven, never with a power driver.

Pitch gauge · Screw size finder · Torque guide

Buy these screws at TechSpare Warehouse

In stock and shipped from South Carolina. Our black screws are Phillips wafer head (low profile); match the head style and length to the original before you order.

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The same screw also fits

Devices whose records share a thread with Dell Inspiron 15 5575 laptop, closest length match first.

Questions about Dell Inspiron 15 5575 laptop screws

What size screw does Dell Inspiron 15 5575 laptop use?
M2 × 2 mm for screw securing optical-drive assembly to base, and securing hinges/display panel/touchpad/power button in various steps; M2 × 3 mm for screws securing optical-drive bracket, battery, wireless-card bracket, hard-drive assembly, heat sink, touchpad, power-button board; M2 × 4 mm for screws securing base cover to palm rest, I/O board, system board to palm rest; M2 × 2.2 mm for screw securing mSATA solid-state drive (in computers shipped with mSATA SSD); M2.5 × 2.5 mm for eight screws securing hinges to display backcover and antenna assembly; M2.5 × 5 mm for screws securing fan, left/right hinges to palm rest and system board; M2.5 × 7 mm for six screws securing base cover to palm .
How long are the screws in Dell Inspiron 15 5575 laptop?
The records range from 2 to 7 mm depending on the position, so match each screw to its own hole.
What is the thread pitch of an M2 screw?
0.4 mm (coarse), which is the standard pitch for M2 machine screws; a 0.25 mm fine pitch exists but is uncommon. The tap drill is 1.6 mm and the normal clearance hole is 2.4 mm.
What screwdriver do I need for Dell Inspiron 15 5575 laptop?
The sources do not name the drive. For M2, Phillips heads normally take PH0 and Torx heads T6; socket heads take a 1.5 mm hex key.
Can I use an imperial screw instead of M2?
No. Imperial look-alike: #2-56 UNC (2.18 mm) is close but not interchangeable. Use a true M2 screw so it does not cross-thread or strip the hole.
Where can I buy replacement screws for Dell Inspiron 15 5575 laptop?
TechSpareWarehouse (our own store) lists M2 x 2mm, M2 x 3mm and M2 x 4mm, which match lengths in the records above.