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Lenovo ThinkPad X395 screw size

M2 / M2.5 · 1.8 to 5 mm long

The screws used on Lenovo ThinkPad X395 are M2 and M2.5 in lengths from 1.8 to 5 mm.

There are 16 separate fitment records for it, including touchpad (qty 4, flat, silver) (M2), touchpad (qty 4, flat, black) (M2) and card reader (qty 3, flat, black) (M2), plus 13 more in the table below.

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 X395 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.

ThreadLengthPitchHeadDriveWhere it goesStatus
M21.8 mm0.4 mmnot statednot statedTouchpad (qty 4, flat, silver)Confirmed
M22 mm0.4 mmnot statednot statedTouchpad (qty 4, flat, black)black finishConfirmed
M22.2 mm0.4 mmnot statednot statedCard reader (qty 3, flat, black)black finishConfirmed
M22.2 mm0.4 mmnot statednot statedPower button (qty 1, flat, black)black finishConfirmed
M22.2 mm0.4 mmnot statednot statedSSD (qty 1, flat, black)black finishConfirmed
M22.2 mm0.4 mmnot statednot statedSystem board (qty 2, flat, black)black finishConfirmed
M22.2 mm0.4 mmnot statednot statedWireless card (qty 1, flat, black)black finishConfirmed
M23 mm0.4 mmnot statednot statedI/O board (qty 2, flat, silver)Confirmed
M23 mm0.4 mmnot statednot statedPower button (qty 1, flat, silver)Confirmed
M23 mm0.4 mmnot statednot statedSystem board (qty 4, flat, silver)Confirmed
M24.5 mm0.4 mmnot statednot statedBattery (qty 5, flat, black)black finishConfirmed
M24.5 mm0.4 mmnot statednot statedBracket (qty 1, flat, black)black finishConfirmed
M2.52.3 mm0.45 mmnot statednot statedDisplay (qty 4, flat, black)black finishConfirmed
M2.52.5 mm0.45 mmnot statednot statedDisplay (qty 4, flat, black)black finishConfirmed
M2.54.5 mm0.45 mmnot statednot statedDisplay (qty 6, flat, silver)Confirmed
M2.55 mm0.45 mmnot statednot statedDisplay (qty 6, flat, silver)Confirmed

Fitment records and sources

M21.8 mmconfirmed

Touchpad (qty 4, flat, silver)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M22 mmconfirmed

Touchpad (qty 4, flat, black)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M22.2 mmconfirmed

Card reader (qty 3, flat, black)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M22.2 mmconfirmed

Power button (qty 1, flat, black)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M22.2 mmconfirmed

SSD (qty 1, flat, black)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M22.2 mmconfirmed

System board (qty 2, flat, black)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M22.2 mmconfirmed

Wireless card (qty 1, flat, black)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M23 mmconfirmed

I/O board (qty 2, flat, silver)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M23 mmconfirmed

Power button (qty 1, flat, silver)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M23 mmconfirmed

System board (qty 4, flat, silver)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M24.5 mmconfirmed

Battery (qty 5, flat, black)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M24.5 mmconfirmed

Bracket (qty 1, flat, black)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M2.52.3 mmconfirmed

Display (qty 4, flat, black)

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

M2.52.5 mmconfirmed

Display (qty 4, flat, black)

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

M2.54.5 mmconfirmed

Display (qty 6, flat, silver)

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

M2.55 mmconfirmed

Display (qty 6, flat, silver)

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

How to check the screw before you buy

  1. 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).
  2. 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.
  3. 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.
  4. Length: measure from under the head to the tip for pan, button, wafer and cap heads; countersunk (flat) heads are measured overall.
  5. The records span 1.8–5 mm, which means different positions take different lengths — match each hole to its own screw.
  6. 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.
  7. 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

  • 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).
  • The standard M.2 SSD screw is M2 x 3mm, but some laptops and handhelds use non-standard lengths or head shapes.
  • Nylon-coated M2.5 screws (ThinkPad Edge) are thread-locking; plain replacements work loose over time.
  • Dell/HP/Lenovo manuals often list screws only by torque or head shape, so community teardowns are needed for diameter.

Pitch gauge · Screw size finder · Torque guide

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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The same screw also fits

Devices whose records share a thread with Lenovo ThinkPad X395, closest length match first.

Questions about Lenovo ThinkPad X395 screws

What size screw does Lenovo ThinkPad X395 use?
M2 × 1.8 mm for touchpad (qty 4, flat, silver); M2 × 2 mm for touchpad (qty 4, flat, black); M2 × 2.2 mm for card reader (qty 3, flat, black); M2 × 2.2 mm for power button (qty 1, flat, black); M2 × 2.2 mm for SSD (qty 1, flat, black); M2 × 2.2 mm for system board (qty 2, flat, black); M2 × 2.2 mm for wireless card (qty 1, flat, black); M2 × 3 mm for I/O board (qty 2, flat, silver); M2 × 3 mm for power button (qty 1, flat, silver); M2 × 3 mm for system board (qty 4, flat, silver); M2 × 4.5 mm for battery (qty 5, flat, black); M2 × 4.5 mm for bracket (qty 1, flat, black); M2.5 × 2.3 mm for display (qty 4, flat, black); M2.5 × 2.5 mm for display (qty 4, flat, black); M2.5 × 4.5 mm for display .
How long are the screws in Lenovo ThinkPad X395?
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 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 X395?
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 X395?
TechSpareWarehouse (our own store) lists M2 x 2mm, M2 x 3mm and M2.5 x 5mm, which match lengths in the records above.