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Lenovo ThinkPad T16g Gen 3 screw size

M1.6 / M2 / M2.5 · 2 to 7 mm long

The screws used on Lenovo ThinkPad T16g Gen 3 are M1.6, M2 and M2.5 in lengths from 2 to 7 mm.

There are 14 separate fitment records for it, including card reader (qty 3, flat, black) (M1.6), touchpad (qty 7, flat, black,silver) (M1.6) and card reader (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).

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 T16g Gen 3 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
M1.62.1 mm0.35 mmnot statednot statedCard reader (qty 3, flat, black)black finishConfirmed
M1.62.1 mm0.35 mmnot statednot statedTouchpad (qty 7, flat, black,silver)black finishConfirmed
M22 mm0.4 mmnot statednot statedCard reader (qty 2, flat, black)black finishConfirmed
M22 mm0.4 mmnot statednot statedSpeaker (qty 4, flat, black)black finishConfirmed
M22.3 mm0.4 mmnot statednot statedCard reader (qty 2, flat, black)black finishConfirmed
M22.5 mm0.4 mmnot statednot statedCard reader (qty 2, flat, black)black finishConfirmed
M22.5 mm0.4 mmnot statednot statedTouchpad (qty 4, flat, black)black finishConfirmed
M24 mm0.4 mmnot statednot statedCard reader (qty 2, flat, silver)Confirmed
M24 mm0.4 mmnot statednot statedSystem board (qty 3, flat, silver)Confirmed
M24 mm0.4 mmnot statednot statedTouchpad (qty 3, flat, silver)Confirmed
M26 mm0.4 mmnot statednot statedFan (qty 3, flat, black)black finishConfirmed
M27 mm0.4 mmnot statednot statedFan (qty 2, flat, black)black finishConfirmed
M2.54 mm0.45 mmnot statednot statedUnspecified (qty 6, flat, silver)Confirmed
M2.55 mm0.45 mmnot statednot statedTouchpad (qty 4, flat, silver)Confirmed

Fitment records and sources

M1.62.1 mmconfirmed

Card reader (qty 3, flat, black)

pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5

M1.62.1 mmconfirmed

Touchpad (qty 7, flat, black,silver)

pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5

M22 mmconfirmed

Card reader (qty 2, flat, black)

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

M22 mmconfirmed

Speaker (qty 4, flat, black)

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

M22.3 mmconfirmed

Card reader (qty 2, flat, black)

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

M22.5 mmconfirmed

Card reader (qty 2, flat, black)

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

M22.5 mmconfirmed

Touchpad (qty 4, flat, black)

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

M24 mmconfirmed

Card reader (qty 2, flat, silver)

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

M24 mmconfirmed

System board (qty 3, flat, silver)

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

M24 mmconfirmed

Touchpad (qty 3, flat, silver)

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

M26 mmconfirmed

Fan (qty 3, flat, black)

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

M27 mmconfirmed

Fan (qty 2, flat, black)

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

M2.54 mmconfirmed

Unspecified (qty 6, flat, silver)

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

M2.55 mmconfirmed

Touchpad (qty 4, 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 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.
  3. 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.
  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 2–7 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 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.
  7. 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.

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 T16g Gen 3, closest length match first.

Questions about Lenovo ThinkPad T16g Gen 3 screws

What size screw does Lenovo ThinkPad T16g Gen 3 use?
M1.6 × 2.1 mm for card reader (qty 3, flat, black); M1.6 × 2.1 mm for touchpad (qty 7, flat, black,silver); M2 × 2 mm for card reader (qty 2, flat, black); M2 × 2 mm for speaker (qty 4, flat, black); M2 × 2.3 mm for card reader (qty 2, flat, black); M2 × 2.5 mm for card reader (qty 2, flat, black); M2 × 2.5 mm for touchpad (qty 4, flat, black); M2 × 4 mm for card reader (qty 2, flat, silver); M2 × 4 mm for system board (qty 3, flat, silver); M2 × 4 mm for touchpad (qty 3, flat, silver); M2 × 6 mm for fan (qty 3, flat, black); M2 × 7 mm for fan (qty 2, flat, black); M2.5 × 4 mm for unspecified (qty 6, flat, silver); M2.5 × 5 mm for touchpad (qty 4, flat, silver).
How long are the screws in Lenovo ThinkPad T16g Gen 3?
The records range from 2 to 7 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 T16g Gen 3?
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 T16g Gen 3?
TechSpareWarehouse (our own store) lists M2 x 2mm, M2 x 2.5mm and M2 x 4mm, which match lengths in the records above.