Lenovo ThinkPad A22P screw size
M2 / M2.5 · 4.8 to 15 mm long
If you are replacing a screw on Lenovo ThinkPad A22P, the thread is M2 and M2.5 in lengths from 4.8 to 15 mm.
There are 15 separate fitment records for it, including display (qty 4) (M2), display (qty 4) (M2) and card reader (qty 2) (M2), plus 12 more in the table below.
15 of the 15 records are marked confirmed, drawn from 1 source (tim.id.au).
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.
Lenovo ThinkPad A22P 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 | 5.1 mm | 0.4 mm | not stated | not stated | Display (qty 4) | Confirmed |
| M2 | 5.7 mm | 0.4 mm | not stated | not stated | Display (qty 4) | Confirmed |
| M2 | 9.5 mm | 0.4 mm | not stated | not stated | Card reader (qty 2) | Confirmed |
| M2.5 | 15 mm | 0.45 mm | not stated | not stated | Hinge (qty 1) | Confirmed |
| M2.5 | 15 mm | 0.45 mm | not stated | not stated | Keyboard (qty 3) | Confirmed |
| M2.5 | 15 mm | 0.45 mm | not stated | not stated | Palm rest (qty 2) | Confirmed |
| M2.5 | 15 mm | 0.45 mm | not stated | not stated | Unspecified (qty 3) | Confirmed |
| M2.5 | 4.8 mm | 0.45 mm | not stated | not stated | I/O board (qty 1) | Confirmed |
| M2.5 | 4.8 mm | 0.45 mm | not stated | not stated | Display (qty 4) | Confirmed |
| M2.5 | 4.8 mm | 0.45 mm | not stated | not stated | Display bezel (qty 3) | Confirmed |
| M2.5 | 4.8 mm | 0.45 mm | not stated | not stated | Fan (qty 3) | Confirmed |
| M2.5 | 4.8 mm | 0.45 mm | not stated | not stated | Palm rest (qty 8) | Confirmed |
| M2.5 | 4.8 mm | 0.45 mm | not stated | not stated | System board (qty 2) | Confirmed |
| M2.5 | 4.8 mm | 0.45 mm | not stated | not stated | Unspecified (qty 3) | Confirmed |
| M2.5 | 7 mm | 0.45 mm | not stated | not stated | Display (qty 4) | Confirmed |
Fitment records and sources
Display (qty 4)
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
Card reader (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hinge (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Keyboard (qty 3)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 3)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
I/O board (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 4)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display bezel (qty 3)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Fan (qty 3)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 8)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
System board (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 3)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 4)
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 4.8–15 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).
- Dell/HP/Lenovo manuals often list screws only by torque or head shape, so community teardowns are needed for diameter.
- Nylon-coated M2.5 screws (ThinkPad Edge) are thread-locking; plain replacements work loose over time.
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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M2 x 5mm Replacement Bottom Case Screws for Dell Inspiron 3535 Laptop 10-Pack
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M2 x 5mm Phillips Wafer Head Screw for Dell G16 7630 Gaming Laptop Repair - Pack of 100 Black
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M2.5 x 5mm Screws Compatible with Dell XPS 14 9440 Display Assembly 10-Pack
$4.99 -
M2.5 x 5mm Phillips Wafer Head Screw for Action Camera Protective Housing - Pack of 50 Black
$4.79 each · min. 2
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ASUS ROG Strix G15 G513R Replacement Screws Sold Individually – M1.6 x 3mm, M2 x 2.5mm, M2 x 3mm, M2.5 x 6mm Phillips Wafer Head, Black
$0.10Choose size -
ASUS ROG Strix G17 G713 Replacement Screws Sold Individually – M1.6 x 3mm, M2 x 2.5mm, M2 x 3mm, M2.5 x 6mm Phillips Wafer Head, Black
$0.10Choose size
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M2.5 x 7mm Black Wafer Head Base Cover Screws for Dell Inspiron 15 3580 3581 3582 3583 3584 3590 3593 – 12-Pack Replacement
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M2.5 x 7mm Black Wafer Head Base Cover Screws for Dell Inspiron 15 5578 2-in-1 & Inspiron 17 5770 – 12-Pack Replacement
$4.99Choose size
More in Laptops & PCs
The same screw also fits
Devices whose records share a thread with Lenovo ThinkPad A22P, closest length match first.
- Dell G3 17 3779 also M2.5 × 7 mm
- Lenovo Chromebook C330 also M2.5 × 7 mm
- HP ProBook x360 435 G8 also M2.5 × 7 mm
- HP 540 also M2.5 × 7 mm
- Lenovo ideapad 320E-17IKB also M2.5 × 7 mm
- Dell Latitude 3180 also M2.5 × 7 mm
- Lenovo ThinkPad T500 also M2 × 9.5 mm
- Lenovo ThinkPad R51 also M2.5 × 4.8 mm
Questions about Lenovo ThinkPad A22P screws
- What size screw does Lenovo ThinkPad A22P use?
- M2 × 5.1 mm for display (qty 4); M2 × 5.7 mm for display (qty 4); M2 × 9.5 mm for card reader (qty 2); M2.5 × 15 mm for hinge (qty 1); M2.5 × 15 mm for keyboard (qty 3); M2.5 × 15 mm for palm rest (qty 2); M2.5 × 15 mm for unspecified (qty 3); M2.5 × 4.8 mm for I/O board (qty 1); M2.5 × 4.8 mm for display (qty 4); M2.5 × 4.8 mm for display bezel (qty 3); M2.5 × 4.8 mm for fan (qty 3); M2.5 × 4.8 mm for palm rest (qty 8); M2.5 × 4.8 mm for system board (qty 2); M2.5 × 4.8 mm for unspecified (qty 3); M2.5 × 7 mm for display (qty 4).
- How long are the screws in Lenovo ThinkPad A22P?
- The records range from 4.8 to 15 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 A22P?
- 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 A22P?
- TechSpareWarehouse (our own store) lists M2 x 5mm and M2.5 x 5mm, which match lengths in the records above.