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Lenovo 100e screw size

M1.6 / M2 / M2.5 · 1.5 to 5.5 mm long

Our records put Lenovo 100e on M1.6, M2 and M2.5 screws in lengths from 1.5 to 5.5 mm.

There are 24 separate fitment records for it, including touchpad (qty 3) (M1.6), camera (qty 2, flat, black) (M2) and display (qty 6, flat, black) (M2), plus 21 more in the table below.

24 of the 24 records are marked confirmed, drawn from 1 source (download.lenovo.com).

M1.6 means a 1.6 mm nominal diameter with a 0.35 mm thread pitch. Imperial look-alike: #1-72 UNF (1.85 mm) is larger; there is no true imperial equivalent.

Lenovo 100e 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
M1.61.5 mm0.35 mmnot statednot statedTouchpad (qty 3)Confirmed
M22.5 mm0.4 mmnot statednot statedCamera (qty 2, flat, black)black finishConfirmed
M22.5 mm0.4 mmnot statednot statedDisplay (qty 6, flat, black)black finishConfirmed
M22.5 mm0.4 mmnot statednot statedSpeaker (qty 2)Confirmed
M23 mm0.4 mmnot statednot statedBattery (qty 5, flat, black)black finishConfirmed
M23 mm0.4 mmnot statednot statedDisplay (qty 8, flat, black,silver)black finishConfirmed
M23 mm0.4 mmnot statednot statedHinge (qty 10)Confirmed
M23 mm0.4 mmnot statednot statedSpeaker (qty 4, flat, black)black finishConfirmed
M23 mm0.4 mmnot statednot statedTouchpad (qty 2, flat, black)black finishConfirmed
M23 mm0.4 mmnot statednot statedUnspecified (qty 2, flat, black)black finishConfirmed
M23 mm0.4 mmnot statednot statedWireless card (qty 1, flat, black)black finishConfirmed
M24 mm0.4 mmnot statednot statedI/O board (qty 2, flat, black)black finishConfirmed
M24 mm0.4 mmnot statednot statedBattery (qty 4, flat, black)black finishConfirmed
M24 mm0.4 mmnot statednot statedSystem board (qty 7, flat, black)black finishConfirmed
M24 mm0.4 mmnot statednot statedUnspecified (qty 4, flat, black)black finishConfirmed
M24 mm0.4 mmnot statednot statedUSB-C board (qty 3, flat, black)black finishConfirmed
M2.53 mm0.45 mmnot statednot statedDisplay (qty 6, flat, black)black finishConfirmed
M2.53 mm0.45 mmnot statednot statedSystem board (qty 5, flat, black)black finishConfirmed
M2.53 mm0.45 mmnot statednot statedTouchpad (qty 3, flat, black)black finishConfirmed
M2.55 mm0.45 mmnot statednot statedDisplay (qty 6)Confirmed
M2.55 mm0.45 mmnot statednot statedKeyboard (qty 6, broadhead, silver)Confirmed
M2.55 mm0.45 mmnot statednot statedSystem board (qty 3)Confirmed
M2.55.5 mm0.45 mmnot statednot statedBase cover (qty 11, flat, black)black finishConfirmed
M2.55.5 mm0.45 mmnot statednot statedDisplay (qty 4, flat, black)black finishConfirmed

Fitment records and sources

M1.61.5 mmconfirmed

Touchpad (qty 3)

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

M22.5 mmconfirmed

Camera (qty 2, flat, black)

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

M22.5 mmconfirmed

Display (qty 6, flat, black)

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

M22.5 mmconfirmed

Speaker (qty 2)

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

M23 mmconfirmed

Battery (qty 5, flat, black)

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

M23 mmconfirmed

Display (qty 8, flat, black,silver)

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

M23 mmconfirmed

Hinge (qty 10)

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

M23 mmconfirmed

Speaker (qty 4, flat, black)

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

M23 mmconfirmed

Touchpad (qty 2, flat, black)

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

M23 mmconfirmed

Unspecified (qty 2, flat, black)

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

M23 mmconfirmed

Wireless card (qty 1, flat, black)

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

M24 mmconfirmed

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

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

M24 mmconfirmed

Battery (qty 4, flat, black)

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

M24 mmconfirmed

System board (qty 7, flat, black)

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

M24 mmconfirmed

Unspecified (qty 4, flat, black)

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

M24 mmconfirmed

USB-C board (qty 3, flat, black)

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

M2.53 mmconfirmed

Display (qty 6, flat, black)

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

M2.53 mmconfirmed

System board (qty 5, flat, black)

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

M2.53 mmconfirmed

Touchpad (qty 3, flat, black)

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

M2.55 mmconfirmed

Display (qty 6)

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

M2.55 mmconfirmed

Keyboard (qty 6, broadhead, silver)

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

M2.55 mmconfirmed

System board (qty 3)

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

M2.55.5 mmconfirmed

Base cover (qty 11, flat, black)

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

M2.55.5 mmconfirmed

Display (qty 4, 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 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 1.5–5.5 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 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

  • Headphone hinge screw sizes are usually quoted from screwdriver bit size, not an actual thread spec - measure before buying.
  • 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).
  • 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 100e, closest length match first.

Questions about Lenovo 100e screws

What size screw does Lenovo 100e use?
M1.6 × 1.5 mm for touchpad (qty 3); M2 × 2.5 mm for camera (qty 2, flat, black); M2 × 2.5 mm for display (qty 6, flat, black); M2 × 2.5 mm for speaker (qty 2); M2 × 3 mm for battery (qty 5, flat, black); M2 × 3 mm for display (qty 8, flat, black,silver); M2 × 3 mm for hinge (qty 10); M2 × 3 mm for speaker (qty 4, flat, black); M2 × 3 mm for touchpad (qty 2, flat, black); M2 × 3 mm for unspecified (qty 2, flat, black); M2 × 3 mm for wireless card (qty 1, flat, black); M2 × 4 mm for I/O board (qty 2, flat, black); M2 × 4 mm for battery (qty 4, flat, black); M2 × 4 mm for system board (qty 7, flat, black); M2 × 4 mm for unspecified (qty 4, flat, black); M2 × 4 mm for USB-C board (qty 3, flat, b.
How long are the screws in Lenovo 100e?
The records range from 1.5 to 5.5 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 100e?
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 100e?
TechSpareWarehouse (our own store) lists M2 x 2.5mm, M2 x 3mm and M2 x 4mm, which match lengths in the records above.