Lenovo 300e Chromebook 2nd Gen MTK screw size
M1.6 / M2 / M2.5 · 1.5 to 5 mm long
If you are replacing a screw on Lenovo 300e Chromebook 2nd Gen MTK, the thread is M1.6, M2 and M2.5 in lengths from 1.5 to 5 mm.
There are 9 separate fitment records for it, including touchpad (qty 3) (M1.6), speaker (qty 2) (M2) and display (qty 4) (M2), plus 6 more in the table below.
9 of the 9 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 300e Chromebook 2nd Gen MTK 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.
| Thread | Length | Pitch | Head | Drive | Where it goes | Status |
|---|---|---|---|---|---|---|
| M1.6 | 1.5 mm | 0.35 mm | not stated | not stated | Touchpad (qty 3) | Confirmed |
| M2 | 2.5 mm | 0.4 mm | not stated | not stated | Speaker (qty 2) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Display (qty 4) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Hinge (qty 10) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Battery (qty 4) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | System board (qty 7) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Unspecified (qty 4) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Display (qty 6) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | System board (qty 3) | Confirmed |
Fitment records and sources
Touchpad (qty 3)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Speaker (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 4)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hinge (qty 10)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Battery (qty 4)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (qty 7)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 4)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 6)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
System board (qty 3)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
How to check the screw before you buy
- 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).
- 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.
- 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.
- Length: measure from under the head to the tip for pan, button, wafer and cap heads; countersunk (flat) heads are measured overall.
- The records span 1.5–5 mm, which means different positions take different lengths — match each hole to its own screw.
- 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.
- 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.
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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ASUS ROG Strix G15 G513R Replacement Screws Sold Individually – M1.6 x 3mm, M2 x 2.5mm, M2 x 3mm, M2.5 x 6mm Phillips Wafer Head, Black
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ASUS ROG Strix G17 G713 Replacement Screws Sold Individually – M1.6 x 3mm, M2 x 2.5mm, M2 x 3mm, M2.5 x 6mm Phillips Wafer Head, Black
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More in Laptops & PCs
The same screw also fits
Devices whose records share a thread with Lenovo 300e Chromebook 2nd Gen MTK, closest length match first.
- Acer Aspire 5942G also M2 × 3 mm
- Acer Aspire 5940G also M2 × 3 mm
- Lenovo IdeaPad 110-14AST also M2 × 2.5 mm
- Dell Latitude 7490 also M2 × 2.5 mm
- Dell Latitude 100l also M2 × 3 mm
- HP ProBook 6465b also M2 × 3 mm
- Lenovo ideapad 300-14IBR also M2 × 3 mm
- Dell Inspiron B130 also M2 × 3 mm
Questions about Lenovo 300e Chromebook 2nd Gen MTK screws
- What size screw does Lenovo 300e Chromebook 2nd Gen MTK use?
- M1.6 × 1.5 mm for touchpad (qty 3); M2 × 2.5 mm for speaker (qty 2); M2 × 3 mm for display (qty 4); M2 × 3 mm for hinge (qty 10); M2 × 4 mm for battery (qty 4); M2 × 4 mm for system board (qty 7); M2 × 4 mm for unspecified (qty 4); M2.5 × 5 mm for display (qty 6); M2.5 × 5 mm for system board (qty 3).
- How long are the screws in Lenovo 300e Chromebook 2nd Gen MTK?
- The records range from 1.5 to 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 300e Chromebook 2nd Gen MTK?
- 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 300e Chromebook 2nd Gen MTK?
- TechSpareWarehouse (our own store) lists M2 x 2.5mm, M2 x 3mm and M2 x 4mm, which match lengths in the records above.