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Lenovo IdeaPad S340-13IML screw size

M1.6 / M2 / M2.5 · 2 to 6 mm long

Our records put Lenovo IdeaPad S340-13IML on M1.6, M2 and M2.5 screws in lengths from 2 to 6 mm.

There are 12 separate fitment records for it, including unspecified (qty 2) (M1.6), hinge (qty 4) (M1.6) and hinge (qty 6) (M2), plus 9 more in the table below.

12 of the 12 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 IdeaPad S340-13IML 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
M1.63 mm0.35 mmnot statednot statedUnspecified (qty 2)Confirmed
M1.64.5 mm0.35 mmnot statednot statedHinge (qty 4)Confirmed
M22 mm0.4 mmnot statednot statedHinge (qty 6)Confirmed
M22 mm0.4 mmnot statednot statedSSD (qty 1)Confirmed
M23.5 mm0.4 mmnot statednot statedI/O board (qty 1)Confirmed
M23.5 mm0.4 mmnot statednot statedBattery (qty 4)Confirmed
M23.5 mm0.4 mmnot statednot statedHeat sink (qty 5)Confirmed
M23.5 mm0.4 mmnot statednot statedSSD (qty 1)Confirmed
M23.5 mm0.4 mmnot statednot statedSystem board (qty 2)Confirmed
M23.5 mm0.4 mmnot statednot statedWireless card (qty 1)Confirmed
M24.5 mm0.4 mmnot statednot statedBase cover (qty 10)Confirmed
M2.56 mm0.45 mmnot statednot statedPalm rest (qty 6)Confirmed

Fitment records and sources

M1.63 mmconfirmed

Unspecified (qty 2)

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

M1.64.5 mmconfirmed

Hinge (qty 4)

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

M22 mmconfirmed

Hinge (qty 6)

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

M22 mmconfirmed

SSD (qty 1)

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

M23.5 mmconfirmed

I/O board (qty 1)

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

M23.5 mmconfirmed

Battery (qty 4)

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

M23.5 mmconfirmed

Heat sink (qty 5)

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

M23.5 mmconfirmed

SSD (qty 1)

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

M23.5 mmconfirmed

System board (qty 2)

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

M23.5 mmconfirmed

Wireless card (qty 1)

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

M24.5 mmconfirmed

Base cover (qty 10)

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

M2.56 mmconfirmed

Palm rest (qty 6)

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 2–6 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.
  • 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 IdeaPad S340-13IML, closest length match first.

Questions about Lenovo IdeaPad S340-13IML screws

What size screw does Lenovo IdeaPad S340-13IML use?
M1.6 × 3 mm for unspecified (qty 2); M1.6 × 4.5 mm for hinge (qty 4); M2 × 2 mm for hinge (qty 6); M2 × 2 mm for SSD (qty 1); M2 × 3.5 mm for I/O board (qty 1); M2 × 3.5 mm for battery (qty 4); M2 × 3.5 mm for heat sink (qty 5); M2 × 3.5 mm for SSD (qty 1); M2 × 3.5 mm for system board (qty 2); M2 × 3.5 mm for wireless card (qty 1); M2 × 4.5 mm for base cover (qty 10); M2.5 × 6 mm for palm rest (qty 6).
How long are the screws in Lenovo IdeaPad S340-13IML?
The records range from 2 to 6 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 IdeaPad S340-13IML?
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 IdeaPad S340-13IML?
TechSpareWarehouse (our own store) lists M1.6 x 3mm, M2 x 2mm and M2.5 x 6mm, which match lengths in the records above.