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Lenovo ThinkPad T430 screw size

M2 / M2.5 · 3 to 14 mm long

The screws used on Lenovo ThinkPad T430 are M2 and M2.5 in lengths from 3 to 14 mm.

There are 20 separate fitment records for it, including keyboard (qty 2, wafer, silver) (M2), palm rest (qty 5, wafer, black) (M2) and LED board (qty 1, flat, black) (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 2 sources (download.lenovo.com and thinkpad-manuals.retropc.se).

M2 means a 2 mm nominal diameter with a 0.4 mm thread pitch. Imperial look-alike: #2-56 UNC (2.18 mm) is close but not interchangeable.

Lenovo ThinkPad T430 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
M214 mm0.4 mmWafer (thin) headnot statedKeyboard (qty 2, wafer, silver)Confirmed
M214 mm0.4 mmWafer (thin) headnot statedPalm rest (qty 5, wafer, black)black finishConfirmed
M23 mm0.4 mmnot statednot statedLED board (qty 1, flat, black)black finishConfirmed
M23 mm0.4 mmWafer (thin) headnot statedBase cover (qty 6, wafer, black)black finishConfirmed
M23 mm0.4 mmnot statednot statedCamera (qty 1, flat, black)black finishConfirmed
M23 mm0.4 mmWafer (thin) headnot statedCard reader (qty 2, wafer, black)black finishConfirmed
M23 mm0.4 mmWafer (thin) headnot statedChassis/frame (qty 4, wafer, black)black finishConfirmed
M23 mm0.4 mmWafer (thin) headnot statedDisplay (qty 4, wafer, black)black finishConfirmed
M23 mm0.4 mmWafer (thin) headnot statedFan (qty 1, wafer, black)black finishConfirmed
M23 mm0.4 mmWafer (thin) headnot statedPalm rest (qty 2, wafer, black)black finishConfirmed
M23 mm0.4 mmWafer (thin) headnot statedSpeaker (qty 2, wafer, black)black finishConfirmed
M23 mm0.4 mmWafer (thin) headnot statedSSD (qty 1, wafer, black)black finishConfirmed
M23 mm0.4 mmWafer (thin) headnot statedSystem board (qty 2, wafer, black)black finishConfirmed
M23 mm0.4 mmWafer (thin) headnot statedWireless card (qty 2, wafer,flat, black)black finishConfirmed
M29.5 mm0.4 mmWafer (thin) headnot statedBase cover (qty 1, wafer, black)black finishConfirmed
M29.5 mm0.4 mmWafer (thin) headnot statedChassis/frame (qty 2, wafer, black)black finishConfirmed
M29.5 mm0.4 mmWafer (thin) headnot statedWireless card (qty 1, wafer, silver)Confirmed
M2.53.5 mm0.45 mmWafer (thin) headnot statedHinge (qty 4, wafer, black)black finishConfirmed
M2.54 mm0.45 mmWafer (thin) headnot statedHinge (qty 4, wafer, black)black finishConfirmed
M2.56.5 mm0.45 mmWafer (thin) headnot statedDisplay (qty 2, wafer, black)black finishConfirmed

Fitment records and sources

M214 mmconfirmed

Keyboard (qty 2, wafer, silver)

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

M214 mmconfirmed

Palm rest (qty 5, wafer, black)

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

M23 mmconfirmed

LED board (qty 1, flat, black)

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

M23 mmconfirmed

Base cover (qty 6, wafer, black)

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

M23 mmconfirmed

Camera (qty 1, flat, black)

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

M23 mmconfirmed

Card reader (qty 2, wafer, black)

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

M23 mmconfirmed

Chassis/frame (qty 4, wafer, black)

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

M23 mmconfirmed

Display (qty 4, wafer, black)

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

M23 mmconfirmed

Fan (qty 1, wafer, black)

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

M23 mmconfirmed

Palm rest (qty 2, wafer, black)

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

M23 mmconfirmed

Speaker (qty 2, wafer, black)

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

M23 mmconfirmed

SSD (qty 1, wafer, black)

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

M23 mmconfirmed

System board (qty 2, wafer, black)

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

M23 mmconfirmed

Wireless card (qty 2, wafer,flat, black)

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

M29.5 mmconfirmed

Base cover (qty 1, wafer, black)

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

M29.5 mmconfirmed

Chassis/frame (qty 2, wafer, black)

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

M29.5 mmconfirmed

Wireless card (qty 1, wafer, silver)

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

M2.53.5 mmconfirmed

Hinge (qty 4, wafer, black)

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

M2.54 mmconfirmed

Hinge (qty 4, wafer, black)

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

M2.56.5 mmconfirmed

Display (qty 2, wafer, 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. 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: 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 3–14 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).
  • Xbox Series X internal chassis screws are M3, not M2 (confirmed on iFixit) — a widespread misconception.
  • 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 T430, closest length match first.

Questions about Lenovo ThinkPad T430 screws

What size screw does Lenovo ThinkPad T430 use?
M2 × 14 mm for keyboard (qty 2, wafer, silver); M2 × 14 mm for palm rest (qty 5, wafer, black); M2 × 3 mm for LED board (qty 1, flat, black); M2 × 3 mm for base cover (qty 6, wafer, black); M2 × 3 mm for camera (qty 1, flat, black); M2 × 3 mm for card reader (qty 2, wafer, black); M2 × 3 mm for chassis/frame (qty 4, wafer, black); M2 × 3 mm for display (qty 4, wafer, black); M2 × 3 mm for fan (qty 1, wafer, black); M2 × 3 mm for palm rest (qty 2, wafer, black); M2 × 3 mm for speaker (qty 2, wafer, black); M2 × 3 mm for SSD (qty 1, wafer, black); M2 × 3 mm for system board (qty 2, wafer, black); M2 × 3 mm for wireless card (qty 2, wafer,flat, black); M2 × 9.5 mm for base cover (qty 1, wafer, .
How long are the screws in Lenovo ThinkPad T430?
The records range from 3 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 T430?
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 T430?
TechSpareWarehouse (our own store) lists M2 x 3mm and M2.5 x 4mm, which match lengths in the records above.