Lenovo ThinkPad X13 Yoga Gen 4 screw size
M1.6 / M2 / M2.5 · 2.1 to 5 mm long
If you are replacing a screw on Lenovo ThinkPad X13 Yoga Gen 4, the thread is M1.6, M2 and M2.5 in lengths from 2.1 to 5 mm.
There are 20 separate fitment records for it, including card reader (qty 4, flat, black) (M1.6), coin-cell battery (qty 1, flat, black) (M1.6) and power button (qty 1, flat, black) (M1.6), plus 17 more in the table below.
20 of the 20 records are marked confirmed, drawn from 1 source (download.lenovo.com).
For reference, M1.6 is 1.6 mm across the threads at 0.35 mm pitch. The imperial size people confuse it with: #1-72 UNF (1.85 mm) is larger; there is no true imperial equivalent.
Lenovo ThinkPad X13 Yoga 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 | 2.1 mm | 0.35 mm | not stated | not stated | Card reader (qty 4, flat, black)black finish | Confirmed |
| M1.6 | 2.1 mm | 0.35 mm | not stated | not stated | Coin-cell battery (qty 1, flat, black)black finish | Confirmed |
| M1.6 | 2.1 mm | 0.35 mm | not stated | not stated | Power button (qty 1, flat, black)black finish | Confirmed |
| M1.6 | 2.1 mm | 0.35 mm | not stated | not stated | Speaker (qty 2, flat, black)black finish | Confirmed |
| M1.6 | 2.1 mm | 0.35 mm | not stated | not stated | Touchpad (qty 7, flat, black)black finish | Confirmed |
| M1.6 | 2.1 mm | 0.35 mm | not stated | not stated | Unspecified (qty 1, flat, black)black finish | Confirmed |
| M1.6 | 2.5 mm | 0.35 mm | not stated | not stated | Coin-cell battery (qty 1, flat, black)black finish | Confirmed |
| M1.6 | 2.5 mm | 0.35 mm | not stated | not stated | Unspecified (qty 1, flat, white) | Confirmed |
| M1.6 | 2.5 mm | 0.35 mm | not stated | not stated | Wireless card (qty 4, flat, black)black finish | Confirmed |
| M1.6 | 2.6 mm | 0.35 mm | not stated | not stated | Wireless card (qty 4, flat, white) | Confirmed |
| M2 | 2.3 mm | 0.4 mm | not stated | not stated | Wireless card (qty 1, 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 | System board (qty 8, 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 | 3.5 mm | 0.4 mm | not stated | not stated | SSD (qty 1, flat, black)black finish | Confirmed |
| M2 | 4.5 mm | 0.4 mm | not stated | not stated | Battery (qty 4, flat, white) | Confirmed |
| M2.5 | 3 mm | 0.45 mm | not stated | not stated | Display (qty 6, 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 | 4.5 mm | 0.45 mm | not stated | not stated | Display (qty 6, flat, black)black finish | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Display (qty 6, flat, black)black finish | Confirmed |
Fitment records and sources
Card reader (qty 4, flat, black)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Coin-cell battery (qty 1, flat, black)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Power button (qty 1, flat, black)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Speaker (qty 2, flat, black)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Touchpad (qty 7, flat, black)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Unspecified (qty 1, flat, black)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Coin-cell battery (qty 1, flat, black)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Unspecified (qty 1, flat, white)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Wireless card (qty 4, flat, black)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Wireless card (qty 4, flat, white)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Wireless card (qty 1, 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
System board (qty 8, 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
SSD (qty 1, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Battery (qty 4, flat, white)
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 6, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 6, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 6, 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 2.1–5 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 2.5mm Screws for Dell XPS 14 9440 M.2 SSD Drive – 10-Pack Black
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25x M2.5 x 3mm Phillips Screws for Acer Nitro 5 SSD M.2 WiFi Card
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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 Inspiron 15 3520 Replacement Screws Sold Individually – M2 x 3mm, M2 x 5mm, M2.5 x 5mm, M3 x 3mm 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 X13 Yoga Gen 4, closest length match first.
- Dell Precision 5560 also M1.6 × 2.5 mm
- Lenovo YOGA 710-15ISK also M2.5 × 4.5 mm
- HP Compaq 6830s also M2.5 × 5 mm
- Dell Inspiron 14 5400 2-in-1 also M1.6 × 2.5 mm
- Lenovo ideapad 320-15ABR Touch also M2.5 × 5 mm
- Lenovo ideapad 330S-14AST also M1.6 × 2.5 mm
- Lenovo Legion Y530-15ICH also M2 × 2.3 mm
- HP Compaq Business NX9500 also M2.5 × 5 mm
Questions about Lenovo ThinkPad X13 Yoga Gen 4 screws
- What size screw does Lenovo ThinkPad X13 Yoga Gen 4 use?
- M1.6 × 2.1 mm for card reader (qty 4, flat, black); M1.6 × 2.1 mm for coin-cell battery (qty 1, flat, black); M1.6 × 2.1 mm for power button (qty 1, flat, black); M1.6 × 2.1 mm for speaker (qty 2, flat, black); M1.6 × 2.1 mm for touchpad (qty 7, flat, black); M1.6 × 2.1 mm for unspecified (qty 1, flat, black); M1.6 × 2.5 mm for coin-cell battery (qty 1, flat, black); M1.6 × 2.5 mm for unspecified (qty 1, flat, white); M1.6 × 2.5 mm for wireless card (qty 4, flat, black); M1.6 × 2.6 mm for wireless card (qty 4, flat, white); M2 × 2.3 mm for wireless card (qty 1, flat, black); M2 × 2.5 mm for speaker (qty 2, flat, black); M2 × 2.5 mm for system board (qty 8, flat, black); M2 × 2.5 mm for wirel.
- How long are the screws in Lenovo ThinkPad X13 Yoga Gen 4?
- The records range from 2.1 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 X13 Yoga 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 X13 Yoga Gen 4?
- TechSpareWarehouse (our own store) lists M2 x 2.5mm, M2.5 x 3mm and M2.5 x 5mm, which match lengths in the records above.





