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.
| Thread | Length | Pitch | Head | Drive | Where it goes | Status |
|---|---|---|---|---|---|---|
| M2 | 12 mm | 0.4 mm | not stated | not stated | Card reader (qty 4) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Display (qty 4, flat) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Optical drive (qty 1, flat, silver) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Display (qty 4) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Hard drive (qty 4, flat, silver) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Memory (qty 2, flat) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Unspecified (qty 1, flat) | Confirmed |
| M2 | 5 mm | 0.4 mm | not stated | not stated | Hard drive (qty 2, flat, silver) | Confirmed |
| M2 | 5 mm | 0.4 mm | not stated | not stated | Optical drive (qty 2, flat, silver) | Confirmed |
| M2 | 5 mm | 0.4 mm | not stated | not stated | Touchpad (qty 1, flat, silver) | Confirmed |
| M2 | 6 mm | 0.4 mm | not stated | not stated | Heat sink (qty 2) | Confirmed |
| M2 | 6 mm | 0.4 mm | not stated | not stated | Palm rest (qty 1) | Confirmed |
| M2 | 6 mm | 0.4 mm | not stated | not stated | Unspecified (qty 2) | Confirmed |
| M2.5 | 14 mm | 0.45 mm | not stated | not stated | System board (qty 1) | Confirmed |
| M2.5 | 16 mm | 0.45 mm | not stated | not stated | Palm rest (qty 2, black)black finish | Confirmed |
| M2.5 | 16 mm | 0.45 mm | not stated | not stated | Unspecified (qty 2, black)black finish | Confirmed |
| M2.5 | 2.6 mm | 0.45 mm | not stated | not stated | Keyboard (qty 2, flat, black)black finish | Confirmed |
| M2.5 | 2.6 mm | 0.45 mm | not stated | not stated | Unspecified (qty 4) | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Hard drive (qty 1, flat, black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Heat sink (qty 1, flat, black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Keyboard (qty 1, flat, black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Memory (qty 1, flat, black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Unspecified (qty 4, flat, black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Wireless card (qty 1, flat, black)black finish | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Palm rest (qty 6, flat, black)black finish | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Speaker (qty 4) | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | DC-in (qty 2, flat, black)black finish | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Display (qty 2, flat) | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Palm rest (qty 13, flat, black)black finish | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | System board (qty 3, flat, black)black finish | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Unspecified (qty 2, black)black finish | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Wireless card (qty 2) | Confirmed |
Fitment records and sources
Card reader (qty 4)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 4, flat)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Optical drive (qty 1, flat, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 4)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hard drive (qty 4, flat, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Memory (qty 2, flat)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 1, flat)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hard drive (qty 2, flat, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Optical drive (qty 2, flat, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Touchpad (qty 1, flat, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Heat sink (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Palm rest (qty 1)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 2, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 2, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Keyboard (qty 2, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 4)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hard drive (qty 1, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Heat sink (qty 1, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Keyboard (qty 1, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Memory (qty 1, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 4, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Wireless card (qty 1, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 6, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Speaker (qty 4)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
DC-in (qty 2, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 2, flat)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 13, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
System board (qty 3, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 2, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
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
- 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).
- 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.
- 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.
- Length: measure from under the head to the tip for pan, button, wafer and cap heads; countersunk (flat) heads are measured overall.
- The records span 2.6–16 mm, which means different positions take different lengths — match each hole to its own screw.
- 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.
- 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.
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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More in Laptops & PCs
The same screw also fits
Devices whose records share a thread with Toshiba Satellite 2400, closest length match first.
- Lenovo ideapad 510-15IKB also M2 × 3 mm
- Lenovo ThinkPad S431 also M2 × 3 mm
- HP ZBook 8 G1ak 14 (ZBook 8 G1a family; G1ah also M2 × 4 mm
- Lenovo ThinkPad S31 also M2 × 4 mm
- Lenovo V110-15ISK also M2 × 3 mm
- HP EliteBook 8440w also M2 × 3 mm
- Lenovo ThinkPad T14s Gen 6 Snapdragon also M2 × 5 mm
- HP 250R G9 / 256R G9 also M2 × 4 mm
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.




