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Toshiba Satellite 2400 screw size

M2 / M2.5 · 2.6 to 16 mm long

The screws used on Toshiba Satellite 2400 are M2 and M2.5 in lengths from 2.6 to 16 mm.

There are 32 separate fitment records for it, including card reader (qty 4) (M2), display (qty 4, flat) (M2) and optical drive (qty 1, flat, silver) (M2), plus 29 more in the table below.

32 of the 32 records are marked confirmed, drawn from 1 source (xdevs.com).

An M2 screw is 2 mm in diameter with a 0.4 mm pitch, tapped with a 1.6 mm drill; imperial look-alike: #2-56 UNC (2.18 mm) is close but not interchangeable.

Toshiba Satellite 2400 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
M212 mm0.4 mmnot statednot statedCard reader (qty 4)Confirmed
M23 mm0.4 mmnot statednot statedDisplay (qty 4, flat)Confirmed
M23 mm0.4 mmnot statednot statedOptical drive (qty 1, flat, silver)Confirmed
M24 mm0.4 mmnot statednot statedDisplay (qty 4)Confirmed
M24 mm0.4 mmnot statednot statedHard drive (qty 4, flat, silver)Confirmed
M24 mm0.4 mmnot statednot statedMemory (qty 2, flat)Confirmed
M24 mm0.4 mmnot statednot statedUnspecified (qty 1, flat)Confirmed
M25 mm0.4 mmnot statednot statedHard drive (qty 2, flat, silver)Confirmed
M25 mm0.4 mmnot statednot statedOptical drive (qty 2, flat, silver)Confirmed
M25 mm0.4 mmnot statednot statedTouchpad (qty 1, flat, silver)Confirmed
M26 mm0.4 mmnot statednot statedHeat sink (qty 2)Confirmed
M26 mm0.4 mmnot statednot statedPalm rest (qty 1)Confirmed
M26 mm0.4 mmnot statednot statedUnspecified (qty 2)Confirmed
M2.514 mm0.45 mmnot statednot statedSystem board (qty 1)Confirmed
M2.516 mm0.45 mmnot statednot statedPalm rest (qty 2, black)black finishConfirmed
M2.516 mm0.45 mmnot statednot statedUnspecified (qty 2, black)black finishConfirmed
M2.52.6 mm0.45 mmnot statednot statedKeyboard (qty 2, flat, black)black finishConfirmed
M2.52.6 mm0.45 mmnot statednot statedUnspecified (qty 4)Confirmed
M2.54 mm0.45 mmnot statednot statedHard drive (qty 1, flat, black)black finishConfirmed
M2.54 mm0.45 mmnot statednot statedHeat sink (qty 1, flat, black)black finishConfirmed
M2.54 mm0.45 mmnot statednot statedKeyboard (qty 1, flat, black)black finishConfirmed
M2.54 mm0.45 mmnot statednot statedMemory (qty 1, flat, black)black finishConfirmed
M2.54 mm0.45 mmnot statednot statedUnspecified (qty 4, flat, black)black finishConfirmed
M2.54 mm0.45 mmnot statednot statedWireless card (qty 1, flat, black)black finishConfirmed
M2.55 mm0.45 mmnot statednot statedPalm rest (qty 6, flat, black)black finishConfirmed
M2.55 mm0.45 mmnot statednot statedSpeaker (qty 4)Confirmed
M2.56 mm0.45 mmnot statednot statedDC-in (qty 2, flat, black)black finishConfirmed
M2.56 mm0.45 mmnot statednot statedDisplay (qty 2, flat)Confirmed
M2.56 mm0.45 mmnot statednot statedPalm rest (qty 13, flat, black)black finishConfirmed
M2.56 mm0.45 mmnot statednot statedSystem board (qty 3, flat, black)black finishConfirmed
M2.56 mm0.45 mmnot statednot statedUnspecified (qty 2, black)black finishConfirmed
M2.56 mm0.45 mmnot statednot statedWireless card (qty 2)Confirmed

Fitment records and sources

M212 mmconfirmed

Card reader (qty 4)

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

M23 mmconfirmed

Display (qty 4, flat)

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

M23 mmconfirmed

Optical drive (qty 1, flat, silver)

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

M24 mmconfirmed

Display (qty 4)

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

M24 mmconfirmed

Hard drive (qty 4, flat, silver)

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

M24 mmconfirmed

Memory (qty 2, flat)

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

M24 mmconfirmed

Unspecified (qty 1, flat)

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

M25 mmconfirmed

Hard drive (qty 2, flat, silver)

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

M25 mmconfirmed

Optical drive (qty 2, flat, silver)

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

M25 mmconfirmed

Touchpad (qty 1, flat, silver)

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

M26 mmconfirmed

Heat sink (qty 2)

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

M26 mmconfirmed

Palm rest (qty 1)

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

M26 mmconfirmed

Unspecified (qty 2)

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

M2.514 mmconfirmed

System board (qty 1)

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

M2.516 mmconfirmed

Palm rest (qty 2, black)

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

M2.516 mmconfirmed

Unspecified (qty 2, black)

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

M2.52.6 mmconfirmed

Keyboard (qty 2, flat, black)

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

M2.52.6 mmconfirmed

Unspecified (qty 4)

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

M2.54 mmconfirmed

Hard drive (qty 1, flat, black)

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

M2.54 mmconfirmed

Heat sink (qty 1, flat, black)

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

M2.54 mmconfirmed

Keyboard (qty 1, flat, black)

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

M2.54 mmconfirmed

Memory (qty 1, flat, black)

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

M2.54 mmconfirmed

Unspecified (qty 4, flat, black)

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

M2.54 mmconfirmed

Wireless card (qty 1, flat, black)

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

M2.55 mmconfirmed

Palm rest (qty 6, flat, black)

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

M2.55 mmconfirmed

Speaker (qty 4)

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

M2.56 mmconfirmed

DC-in (qty 2, flat, black)

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

M2.56 mmconfirmed

Display (qty 2, flat)

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

M2.56 mmconfirmed

Palm rest (qty 13, flat, black)

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

M2.56 mmconfirmed

System board (qty 3, flat, black)

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

M2.56 mmconfirmed

Unspecified (qty 2, black)

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

M2.56 mmconfirmed

Wireless card (qty 2)

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

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, 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 2.6–16 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

  • The standard M.2 SSD screw is M2 x 3mm, but some laptops and handhelds use non-standard lengths or head shapes.
  • 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).
  • M2.5 pitch is 0.45mm vs M3's 0.5mm and M2's 0.4mm — forcing the wrong one strips plastic bosses instantly.
  • M2.5 and M3 look the same to the naked eye — you need calipers on the shank to tell them apart.

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 Toshiba Satellite 2400, closest length match first.

Questions about Toshiba Satellite 2400 screws

What size screw does Toshiba Satellite 2400 use?
M2 × 12 mm for card reader (qty 4); M2 × 3 mm for display (qty 4, flat); M2 × 3 mm for optical drive (qty 1, flat, silver); M2 × 4 mm for display (qty 4); M2 × 4 mm for hard drive (qty 4, flat, silver); M2 × 4 mm for memory (qty 2, flat); M2 × 4 mm for unspecified (qty 1, flat); M2 × 5 mm for hard drive (qty 2, flat, silver); M2 × 5 mm for optical drive (qty 2, flat, silver); M2 × 5 mm for touchpad (qty 1, flat, silver); M2 × 6 mm for heat sink (qty 2); M2 × 6 mm for palm rest (qty 1); M2 × 6 mm for unspecified (qty 2); M2.5 × 14 mm for system board (qty 1); M2.5 × 16 mm for palm rest (qty 2, black); M2.5 × 16 mm for unspecified (qty 2, black); M2.5 × 2.6 mm for keyboard (qty 2, flat, black).
How long are the screws in Toshiba Satellite 2400?
The records range from 2.6 to 16 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 Toshiba Satellite 2400?
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 Toshiba Satellite 2400?
TechSpareWarehouse (our own store) lists M2 x 3mm, M2 x 4mm and M2 x 5mm, which match lengths in the records above.