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Lenovo ThinkPad L13 Gen 4 screw size

M2 / M2.5 · 2 to 6.2 mm long

Our records put Lenovo ThinkPad L13 Gen 4 on M2 and M2.5 screws in lengths from 2 to 6.2 mm.

There are 20 separate fitment records for it, including card reader (qty 1, flat, silver) (M2), fan (qty 1, flat, silver) (M2) and SSD (qty 1, flat, silver) (M2), plus 17 more in the table below.

Head and drive, as the sources state them: wafer (thin) head.

20 of the 20 records are marked confirmed, drawn from 1 source (download.lenovo.com).

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 L13 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.

ThreadLengthPitchHeadDriveWhere it goesStatus
M22 mm0.4 mmnot statednot statedCard reader (qty 1, flat, silver)Confirmed
M22 mm0.4 mmnot statednot statedFan (qty 1, flat, silver)Confirmed
M22 mm0.4 mmnot statednot statedSSD (qty 1, flat, silver)Confirmed
M22 mm0.4 mmnot statednot statedTouchpad (qty 7, flat, silver)Confirmed
M22 mm0.4 mmnot statednot statedWireless card (qty 1, flat, silver)Confirmed
M22.5 mm0.4 mmnot statednot statedKeyboard (qty 1, flat, black)black finishConfirmed
M22.5 mm0.4 mmnot statednot statedPower button (qty 2, flat, black)black finishConfirmed
M22.5 mm0.4 mmnot statednot statedSystem board (qty 2, flat, black)black finishConfirmed
M23.5 mm0.4 mmnot statednot statedDisplay (qty 4, flat, black)black finishConfirmed
M23.5 mm0.4 mmnot statednot statedHinge (qty 2, flat, black)black finishConfirmed
M24 mm0.4 mmnot statednot statedFan (qty 1, flat, black)black finishConfirmed
M24 mm0.4 mmnot statednot statedSSD (qty 1, flat, black)black finishConfirmed
M24 mm0.4 mmWafer (thin) headnot statedUnspecified (qty 4, wafer,flat, black)black finishConfirmed
M25 mm0.4 mmnot statednot statedBattery (qty 4, flat, black)black finishConfirmed
M25 mm0.4 mmnot statednot statedKeyboard (qty 1, flat, black)black finishConfirmed
M26.2 mm0.4 mmnot statednot statedBase cover (qty 2, flat, black)black finishConfirmed
M2.52.5 mm0.45 mmnot statednot statedDisplay (qty 6, flat, silver)Confirmed
M2.54.5 mm0.45 mmnot statednot statedDisplay (qty 4, flat, silver)Confirmed
M2.54.5 mm0.45 mmWafer (thin) headnot statedUnspecified (qty 2, wafer, silver)Confirmed
M2.55 mm0.45 mmnot statednot statedBase cover (qty 6, flat, black)black finishConfirmed

Fitment records and sources

M22 mmconfirmed

Card reader (qty 1, flat, silver)

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

M22 mmconfirmed

Fan (qty 1, flat, silver)

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

M22 mmconfirmed

SSD (qty 1, flat, silver)

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

M22 mmconfirmed

Touchpad (qty 7, flat, silver)

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

M22 mmconfirmed

Wireless card (qty 1, flat, silver)

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

M22.5 mmconfirmed

Keyboard (qty 1, flat, black)

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

M22.5 mmconfirmed

Power button (qty 2, flat, black)

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

M22.5 mmconfirmed

System board (qty 2, flat, black)

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

M23.5 mmconfirmed

Display (qty 4, flat, black)

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

M23.5 mmconfirmed

Hinge (qty 2, flat, black)

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

M24 mmconfirmed

Fan (qty 1, flat, black)

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

M24 mmconfirmed

SSD (qty 1, flat, black)

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

M24 mmconfirmed

Unspecified (qty 4, wafer,flat, black)

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

M25 mmconfirmed

Battery (qty 4, flat, black)

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

M25 mmconfirmed

Keyboard (qty 1, flat, black)

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

M26.2 mmconfirmed

Base cover (qty 2, flat, black)

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

M2.52.5 mmconfirmed

Display (qty 6, flat, silver)

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

M2.54.5 mmconfirmed

Display (qty 4, flat, silver)

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

M2.54.5 mmconfirmed

Unspecified (qty 2, wafer, silver)

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

M2.55 mmconfirmed

Base cover (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

  1. 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.
  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: for wafer (thin) head screws, measure from under the head to the tip (countersunk heads are the exception: they are measured overall).
  5. The records span 2–6.2 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 L13 Gen 4, closest length match first.

Questions about Lenovo ThinkPad L13 Gen 4 screws

What size screw does Lenovo ThinkPad L13 Gen 4 use?
M2 × 2 mm for card reader (qty 1, flat, silver); M2 × 2 mm for fan (qty 1, flat, silver); M2 × 2 mm for SSD (qty 1, flat, silver); M2 × 2 mm for touchpad (qty 7, flat, silver); M2 × 2 mm for wireless card (qty 1, flat, silver); M2 × 2.5 mm for keyboard (qty 1, flat, black); M2 × 2.5 mm for power button (qty 2, flat, black); M2 × 2.5 mm for system board (qty 2, flat, black); M2 × 3.5 mm for display (qty 4, flat, black); M2 × 3.5 mm for hinge (qty 2, flat, black); M2 × 4 mm for fan (qty 1, flat, black); M2 × 4 mm for SSD (qty 1, flat, black); M2 × 4 mm for unspecified (qty 4, wafer,flat, black); M2 × 5 mm for battery (qty 4, flat, black); M2 × 5 mm for keyboard (qty 1, flat, black); M2 × 6.2 m.
How long are the screws in Lenovo ThinkPad L13 Gen 4?
The records range from 2 to 6.2 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 L13 Gen 4?
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 L13 Gen 4?
TechSpareWarehouse (our own store) lists M2 x 2mm, M2 x 2.5mm and M2 x 4mm, which match lengths in the records above.