Lenovo ThinkPad X131e Chromebook screw size
M2 / M2.5 / M3 · 3 to 8 mm long
Lenovo ThinkPad X131e Chromebook takes M2, M2.5 and M3 metric screws in lengths from 3 to 8 mm.
There are 16 separate fitment records for it, including I/O board (qty 1, wafer, black) (M2), SSD (qty 1, wafer, black) (M2) and system board (qty 2, wafer, black) (M2), plus 13 more in the table below.
Head and drive, as the sources state them: wafer (thin) and shoulder screw heads.
16 of the 16 records are marked confirmed, drawn from 1 source (download.lenovo.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.
Lenovo ThinkPad X131e Chromebook 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 | Wafer (thin) head | not stated | I/O board (qty 1, wafer, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | SSD (qty 1, wafer, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | System board (qty 2, wafer, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | Unspecified (qty 2, wafer, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | Wireless card (qty 1, wafer, black)black finish | Confirmed |
| M2 | 5 mm | 0.4 mm | Wafer (thin) head | not stated | Display bezel (qty 4, wafer, black)black finish | Confirmed |
| M2 | 5 mm | 0.4 mm | Wafer (thin) head | not stated | Hard drive (qty 2, wafer, black)black finish | Confirmed |
| M2 | 5 mm | 0.4 mm | Wafer (thin) head | not stated | Hinge (qty 2, wafer, black)black finish | Confirmed |
| M2 | 5 mm | 0.4 mm | Wafer (thin) head | not stated | Palm rest (qty 3, wafer, black)black finish | Confirmed |
| M2 | 5.5 mm | 0.4 mm | Shoulder screw | not stated | Speaker (qty 4, shoulder, black)black finish | Confirmed |
| M2 | 8 mm | 0.4 mm | Wafer (thin) head | not stated | Keyboard (qty 2, wafer, black)black finish | Confirmed |
| M2 | 8 mm | 0.4 mm | Wafer (thin) head | not stated | Palm rest (qty 2, wafer, black)black finish | Confirmed |
| M2.5 | 6 mm | 0.45 mm | Wafer (thin) head | not stated | Display (qty 4, wafer, black)black finish | Confirmed |
| M2.5 | 6 mm | 0.45 mm | Wafer (thin) head | not stated | Palm rest (qty 2, wafer, black)black finish | Confirmed |
| M2.5 | 8 mm | 0.45 mm | Wafer (thin) head | not stated | Palm rest (qty 2, wafer, black)black finish | Confirmed |
| M3 | 3.5 mm | 0.5 mm | Wafer (thin) head | not stated | Hard drive (qty 2, wafer, silver) | Confirmed |
Fitment records and sources
I/O board (qty 1, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
SSD (qty 1, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (qty 2, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 2, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Wireless card (qty 1, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display bezel (qty 4, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hard drive (qty 2, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hinge (qty 2, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Palm rest (qty 3, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Speaker (qty 4, shoulder, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Keyboard (qty 2, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Palm rest (qty 2, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 4, wafer, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 2, wafer, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 2, wafer, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hard drive (qty 2, wafer, silver)
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
How to check the screw before you buy
- A screw that is even 1 mm too long in a laptop base can push into the keyboard, battery or a board trace, so match the length position by position.
- 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: for wafer (thin) head / shoulder screw screws, measure from under the head to the tip (countersunk heads are the exception: they are measured overall).
- The records span 3–8 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 / 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).
- Nylon-coated M2.5 screws (ThinkPad Edge) are thread-locking; plain replacements work loose over time.
- 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 Lenovo ThinkPad X131e Chromebook, closest length match first.
- Lenovo ThinkPad P15 Gen 1 also M2 × 3 mm
- HP ProBook 4310s also M2 × 3 mm
- Dell Inspiron 13 5391 Wifi also M2 × 3 mm
- HP 14 inch 14-f1000 (= 14-fq1000 also M2 × 3 mm
- Dell Inspiron 14 7420 also M2 × 3 mm
- Dell Inspiron 14 7472 also M2 × 3 mm
- Lenovo ThinkPad L13 Gen 4 also M2 × 5 mm
- HP Compaq nx9040 also M2 × 3 mm
Questions about Lenovo ThinkPad X131e Chromebook screws
- What size screw does Lenovo ThinkPad X131e Chromebook use?
- M2 × 3 mm for I/O board (qty 1, wafer, black); M2 × 3 mm for SSD (qty 1, wafer, black); M2 × 3 mm for system board (qty 2, wafer, black); M2 × 3 mm for unspecified (qty 2, wafer, black); M2 × 3 mm for wireless card (qty 1, wafer, black); M2 × 5 mm for display bezel (qty 4, wafer, black); M2 × 5 mm for hard drive (qty 2, wafer, black); M2 × 5 mm for hinge (qty 2, wafer, black); M2 × 5 mm for palm rest (qty 3, wafer, black); M2 × 5.5 mm for speaker (qty 4, shoulder, black); M2 × 8 mm for keyboard (qty 2, wafer, black); M2 × 8 mm for palm rest (qty 2, wafer, black); M2.5 × 6 mm for display (qty 4, wafer, black); M2.5 × 6 mm for palm rest (qty 2, wafer, black); M2.5 × 8 mm for palm rest (qty 2, .
- How long are the screws in Lenovo ThinkPad X131e Chromebook?
- The records range from 3 to 8 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 Lenovo ThinkPad X131e Chromebook?
- 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 Lenovo ThinkPad X131e Chromebook?
- TechSpareWarehouse (our own store) lists M2 x 3mm, M2 x 5mm and M2 x 8mm, which match lengths in the records above.





