Toshiba Satellite 1900 screw size
M2 / M2.5 / M3 · 3 to 7 mm long
The screws used on Toshiba Satellite 1900 are M2, M2.5 and M3 in lengths from 3 to 7 mm.
There are 24 separate fitment records for it, including LED board (qty 2, black) (M2), heat sink (qty 2, Torx) (M2) and optical drive (qty 2, black) (M2), plus 21 more in the table below.
Head and drive, as the sources state them: Torx drive.
24 of the 24 records are marked confirmed, drawn from 1 source (xdevs.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.
Toshiba Satellite 1900 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 | 3 mm | 0.4 mm | not stated | not stated | LED board (qty 2, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Torx | Heat sink (qty 2, Torx) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Optical drive (qty 2, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Speaker (qty 8, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | System board (qty 3, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Unspecified (qty 2, black)black finish | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Fan (qty 3, silver) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | Torx | Unspecified (qty 4, silver, Torx) | Confirmed |
| M2 | 5 mm | 0.4 mm | not stated | not stated | Speaker (qty 2, silver) | Confirmed |
| M2.5 | 3 mm | 0.45 mm | not stated | not stated | Keyboard (qty 2, black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | LED board (qty 6, black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Hard drive (qty 2, black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Heat sink (qty 4, black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Memory (qty 4, black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Optical drive (qty 1, black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Palm rest (qty 11, black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Speaker (qty 2, black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | System board (qty 2, black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Unspecified (qty 4, black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | Torx | Wireless card (qty 1, black, Torx)black finish | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Speaker (qty 2, silver) | Confirmed |
| M2.5 | 7 mm | 0.45 mm | not stated | not stated | Display (qty 2, flat, black)black finish | Confirmed |
| M2.5 | 7 mm | 0.45 mm | not stated | not stated | Palm rest (qty 9, black)black finish | Confirmed |
| M3 | 3 mm | 0.5 mm | not stated | not stated | Hard drive (qty 4, silver,black)black finish | Confirmed |
Fitment records and sources
LED board (qty 2, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Heat sink (qty 2, Torx)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Optical drive (qty 2, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Speaker (qty 8, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (qty 3, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 2, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Fan (qty 3, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 4, silver, Torx)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Speaker (qty 2, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Keyboard (qty 2, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
LED board (qty 6, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hard drive (qty 2, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Heat sink (qty 4, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Memory (qty 4, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Optical drive (qty 1, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 11, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Speaker (qty 2, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
System board (qty 2, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 4, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Wireless card (qty 1, black, Torx)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Speaker (qty 2, silver)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 2, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 9, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hard drive (qty 4, silver,black)
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
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 / M3, 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 3–7 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source names a Torx drive. For comparison, standard M2 heads take PH0 (Phillips) or T6 (Torx), or a 1.5 mm hex key.
- 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).
- M2.5 and M3 look the same to the naked eye — you need calipers on the shank to tell them apart.
- 3.5in desktop and enterprise hard drives are 6-32 UNC imperial, not M3 - only the 2.5in form factor is metric.
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 1900, closest length match first.
- Lenovo ThinkPad P15v Gen 3 also M2 × 3 mm
- Toshiba Satellite A200 also M2 × 3 mm
- HP ProBook 470 G2 also M2 × 3 mm
- Dell Inspiron 13 5370 also M2 × 3 mm
- Lenovo ThinkPad M.2 SSD also M2 × 3 mm
- Dell Vostro 15 5581 also M2 × 3 mm
- Dell Precision 5550 also M2 × 3 mm
- HP Compaq Evo N800c also M2 × 4 mm
Questions about Toshiba Satellite 1900 screws
- What size screw does Toshiba Satellite 1900 use?
- M2 × 3 mm for LED board (qty 2, black); M2 × 3 mm for heat sink (qty 2, Torx); M2 × 3 mm for optical drive (qty 2, black); M2 × 3 mm for speaker (qty 8, black); M2 × 3 mm for system board (qty 3, black); M2 × 3 mm for unspecified (qty 2, black); M2 × 4 mm for fan (qty 3, silver); M2 × 4 mm for unspecified (qty 4, silver, Torx); M2 × 5 mm for speaker (qty 2, silver); M2.5 × 3 mm for keyboard (qty 2, black); M2.5 × 4 mm for LED board (qty 6, black); M2.5 × 4 mm for hard drive (qty 2, black); M2.5 × 4 mm for heat sink (qty 4, black); M2.5 × 4 mm for memory (qty 4, black); M2.5 × 4 mm for optical drive (qty 1, black); M2.5 × 4 mm for palm rest (qty 11, black); M2.5 × 4 mm for speaker (qty 2, bla.
- How long are the screws in Toshiba Satellite 1900?
- The records range from 3 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 Toshiba Satellite 1900?
- The source lists a Torx drive. Standard M2 heads otherwise take PH0 (Phillips) or T6 (Torx), or 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 1900?
- TechSpareWarehouse (our own store) lists M2 x 3mm, M2 x 4mm and M2 x 5mm, which match lengths in the records above.