Lenovo ThinkPad T20 screw size
M2 / M2.5 · 3.5 to 14 mm long
Our records put Lenovo ThinkPad T20 on M2 and M2.5 screws in lengths from 3.5 to 14 mm.
There are 23 separate fitment records for it, including card reader (qty 4) (M2), fan (qty 4) (M2) and unspecified (qty 3) (M2), plus 20 more in the table below.
23 of the 23 records are marked confirmed, drawn from 1 source (thinkpad-manuals.retropc.se).
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 T20 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 | 13.5 mm | 0.4 mm | not stated | not stated | Card reader (qty 4) | Confirmed |
| M2 | 13.5 mm | 0.4 mm | not stated | not stated | Fan (qty 4) | Confirmed |
| M2 | 13.5 mm | 0.4 mm | not stated | not stated | Unspecified (qty 3) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Unspecified (qty 4) | Confirmed |
| M2.5 | 11.5 mm | 0.45 mm | not stated | not stated | Keyboard (qty 1) | Confirmed |
| M2.5 | 11.5 mm | 0.45 mm | not stated | not stated | Palm rest (qty 1) | Confirmed |
| M2.5 | 11.5 mm | 0.45 mm | not stated | not stated | Unspecified (qty 2) | Confirmed |
| M2.5 | 14 mm | 0.45 mm | not stated | not stated | Display (qty 1) | Confirmed |
| M2.5 | 14 mm | 0.45 mm | not stated | not stated | Hinge (qty 3) | Confirmed |
| M2.5 | 14 mm | 0.45 mm | not stated | not stated | Keyboard (qty 2) | Confirmed |
| M2.5 | 14 mm | 0.45 mm | not stated | not stated | Palm rest (qty 1) | Confirmed |
| M2.5 | 14 mm | 0.45 mm | not stated | not stated | Speaker (qty 2) | Confirmed |
| M2.5 | 14 mm | 0.45 mm | not stated | not stated | Unspecified (qty 1) | Confirmed |
| M2.5 | 3.5 mm | 0.45 mm | not stated | not stated | Coin-cell battery (qty 1) | Confirmed |
| M2.5 | 3.5 mm | 0.45 mm | not stated | not stated | Palm rest (qty 3) | Confirmed |
| M2.5 | 4.8 mm | 0.45 mm | not stated | not stated | I/O board (qty 4) | 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 | Hard drive (qty 1) | Confirmed |
| M2.5 | 4.8 mm | 0.45 mm | not stated | not stated | Hinge (qty 1) | 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 1) | Confirmed |
| M2.5 | 4.8 mm | 0.45 mm | not stated | not stated | Unspecified (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
Fan (qty 4)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 3)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 4)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Keyboard (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hinge (qty 3)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Keyboard (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Speaker (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Coin-cell battery (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 3)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
I/O board (qty 4)
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
Hard drive (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hinge (qty 1)
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 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (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
- 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, 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 3.5–14 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 4mm Phillips Wafer Head Machine Screws Black 50-Pack Laptop SSD Repair
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M2 x 4mm Screws for Dell Latitude 5530 SSD Type-C Bracket 10-Pack Black
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M2.5 x 14mm Phillips Wafer Head Screw for Turntable Cartridge Headshell Mount - Pack of 50 Black
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M2.5 x 5mm Screws Compatible with Dell XPS 14 9440 Display Assembly 10-Pack
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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
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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
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Dell Latitude 5530 Replacement Screws Sold Individually – M2 x 3mm, M2 x 4mm, M2.5 x 5mm Phillips Wafer Head, Black
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More in Laptops & PCs
The same screw also fits
Devices whose records share a thread with Lenovo ThinkPad T20, closest length match first.
- Lenovo B40-45 also M2 × 4 mm
- HP ZBook Firefly 16 inch G11 also M2 × 4 mm
- Lenovo ThinkPad E590 also M2 × 4 mm
- Dell Latitude 5550 also M2 × 4 mm
- Dell Precision 3551 also M2.5 × 3.5 mm
- Toshiba Portege M100 also M2 × 4 mm
- Toshiba Satellite 2405 also M2 × 4 mm
- Lenovo ThinkPad T23 also M2 × 13.5 mm
Questions about Lenovo ThinkPad T20 screws
- What size screw does Lenovo ThinkPad T20 use?
- M2 × 13.5 mm for card reader (qty 4); M2 × 13.5 mm for fan (qty 4); M2 × 13.5 mm for unspecified (qty 3); M2 × 4 mm for unspecified (qty 4); M2.5 × 11.5 mm for keyboard (qty 1); M2.5 × 11.5 mm for palm rest (qty 1); M2.5 × 11.5 mm for unspecified (qty 2); M2.5 × 14 mm for display (qty 1); M2.5 × 14 mm for hinge (qty 3); M2.5 × 14 mm for keyboard (qty 2); M2.5 × 14 mm for palm rest (qty 1); M2.5 × 14 mm for speaker (qty 2); M2.5 × 14 mm for unspecified (qty 1); M2.5 × 3.5 mm for coin-cell battery (qty 1); M2.5 × 3.5 mm for palm rest (qty 3); M2.5 × 4.8 mm for I/O board (qty 4); 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 hard drive (qty 1); M2.
- How long are the screws in Lenovo ThinkPad T20?
- The records range from 3.5 to 14 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 T20?
- 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 T20?
- TechSpareWarehouse (our own store) lists M2 x 4mm, M2.5 x 14mm and M2.5 x 5mm, which match lengths in the records above.