Lenovo ThinkPad T14 Gen 4 screw size
M1.6 / M2 / M2.5 · 1.8 to 5 mm long
If you are replacing a screw on Lenovo ThinkPad T14 Gen 4, the thread is M1.6, M2 and M2.5 in lengths from 1.8 to 5 mm.
There are 14 separate fitment records for it, including card reader (qty 4, flat, silver) (M1.6), touchpad (qty 7, flat, silver) (M1.6) and power button (qty 2, flat, black) (M2), plus 11 more in the table below.
14 of the 14 records are marked confirmed, drawn from 1 source (download.lenovo.com).
An M1.6 screw is 1.6 mm in diameter with a 0.35 mm pitch, tapped with a 1.25 mm drill; imperial look-alike: #1-72 UNF (1.85 mm) is larger; there is no true imperial equivalent.
Lenovo ThinkPad T14 Gen 4 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 |
|---|---|---|---|---|---|---|
| M1.6 | 1.8 mm | 0.35 mm | not stated | not stated | Card reader (qty 4, flat, silver) | Confirmed |
| M1.6 | 1.8 mm | 0.35 mm | not stated | not stated | Touchpad (qty 7, flat, silver) | Confirmed |
| M2 | 2.3 mm | 0.4 mm | not stated | not stated | Power button (qty 2, flat, black)black finish | Confirmed |
| M2 | 2.5 mm | 0.4 mm | not stated | not stated | Speaker (qty 2, flat, black)black finish | Confirmed |
| M2 | 2.5 mm | 0.4 mm | not stated | not stated | Wireless card (qty 1, flat, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Power button (qty 2, flat, silver) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | System board (qty 3, flat, silver) | Confirmed |
| M2 | 3.5 mm | 0.4 mm | not stated | not stated | SSD (qty 1, flat, black)black finish | Confirmed |
| M2 | 5 mm | 0.4 mm | not stated | not stated | I/O board (qty 2, flat, black)black finish | Confirmed |
| M2 | 5 mm | 0.4 mm | not stated | not stated | Battery (qty 6, flat, black)black finish | Confirmed |
| M2 | 5 mm | 0.4 mm | not stated | not stated | Bracket (qty 4, flat, black)black finish | Confirmed |
| M2 | 5 mm | 0.4 mm | not stated | not stated | Display (qty 1, flat, black)black finish | Confirmed |
| M2.5 | 3.5 mm | 0.45 mm | not stated | not stated | Display (qty 6, flat, black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Display (qty 4, flat, black)black finish | Confirmed |
Fitment records and sources
Card reader (qty 4, flat, silver)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Touchpad (qty 7, flat, silver)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Power button (qty 2, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Speaker (qty 2, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Wireless card (qty 1, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Power button (qty 2, flat, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (qty 3, flat, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
SSD (qty 1, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
I/O board (qty 2, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Battery (qty 6, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Bracket (qty 4, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 1, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 6, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 4, flat, black)
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 M1.6 screw measures about 1.6 mm with calipers (usually a hair under). This device also uses M2 / M2.5, so measure each screw rather than assuming they match.
- Pitch: 0.35 mm from one thread crest to the next (28.57 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 1.8–5 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source does not name the drive. Standard M1.6 heads take PH00 for Phillips and T4–T5 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 M1.6 is about 12-20 N·cm into metal threads and 6-10 N·cm into plastic bosses; snug it up and stop.
Common mix-ups with M1.6 / 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.
- Dell/HP/Lenovo manuals often list screws only by torque or head shape, so community teardowns are needed for diameter.
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 3mm Screws for Dell XPS 13 9340 Base Cover SSD Shield 10-Pack Black
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10x M2 x 3mm Phillips Screws for Lenovo ThinkPad X131e Chromebook WiFi SSD
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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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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
More in Laptops & PCs
The same screw also fits
Devices whose records share a thread with Lenovo ThinkPad T14 Gen 4, closest length match first.
- Lenovo ideapad 330R-15ICH also M2 × 3 mm
- Lenovo Ideapad 730S-13IML also M2 × 2.5 mm
- Dell 15 D15260 also M2 × 3 mm
- Lenovo V140-15IWL also M2 × 3 mm
- Lenovo G710 also M2 × 3 mm
- Lenovo IdeaPad Z485 also M2 × 2.5 mm
- Lenovo ThinkPad X12 Detachable Gen 2 also M2 × 2.5 mm
- HP Compaq nx6110 also M2 × 3 mm
Questions about Lenovo ThinkPad T14 Gen 4 screws
- What size screw does Lenovo ThinkPad T14 Gen 4 use?
- M1.6 × 1.8 mm for card reader (qty 4, flat, silver); M1.6 × 1.8 mm for touchpad (qty 7, flat, silver); M2 × 2.3 mm for power button (qty 2, flat, black); M2 × 2.5 mm for speaker (qty 2, flat, black); M2 × 2.5 mm for wireless card (qty 1, flat, black); M2 × 3 mm for power button (qty 2, flat, silver); M2 × 3 mm for system board (qty 3, flat, silver); M2 × 3.5 mm for SSD (qty 1, flat, black); M2 × 5 mm for I/O board (qty 2, flat, black); M2 × 5 mm for battery (qty 6, flat, black); M2 × 5 mm for bracket (qty 4, flat, black); M2 × 5 mm for display (qty 1, flat, black); M2.5 × 3.5 mm for display (qty 6, flat, black); M2.5 × 4 mm for display (qty 4, flat, black).
- How long are the screws in Lenovo ThinkPad T14 Gen 4?
- The records range from 1.8 to 5 mm depending on the position, so match each screw to its own hole.
- What is the thread pitch of an M1.6 screw?
- 0.35 mm (coarse), which is the standard pitch for M1.6 machine screws; a 0.2 mm fine pitch exists but is uncommon. The tap drill is 1.25 mm and the normal clearance hole is 1.8 mm.
- What screwdriver do I need for Lenovo ThinkPad T14 Gen 4?
- The sources do not name the drive. For M1.6, Phillips heads normally take PH00 and Torx heads T4–T5; socket heads take a 1.5 mm hex key.
- Can I use an imperial screw instead of M1.6?
- No. Imperial look-alike: #1-72 UNF (1.85 mm) is larger; there is no true imperial equivalent. Use a true M1.6 screw so it does not cross-thread or strip the hole.
- Where can I buy replacement screws for Lenovo ThinkPad T14 Gen 4?
- TechSpareWarehouse (our own store) lists M2 x 2.5mm, M2 x 3mm and M2 x 5mm, which match lengths in the records above.




