Lenovo IdeaPad U300e screw size
M2 / M2.5 · 2.5 to 6 mm long
Lenovo IdeaPad U300e takes M2 and M2.5 metric screws in lengths from 2.5 to 6 mm.
There are 11 separate fitment records for it, including system board (qty 6, flat, white) (M2), fan (qty 4, flat, white) (M2) and keyboard (qty 4, flat, black) (M2), plus 8 more in the table below.
11 of the 11 records are marked confirmed, drawn from 1 source (download.lenovo.com).
For reference, M2 is 2 mm across the threads at 0.4 mm pitch. The imperial size people confuse it with: #2-56 UNC (2.18 mm) is close but not interchangeable.
Lenovo IdeaPad U300e 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 |
|---|---|---|---|---|---|---|
| M2 | 2.5 mm | 0.4 mm | not stated | not stated | System board (qty 6, flat, white) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Fan (qty 4, flat, white) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Keyboard (qty 4, flat, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Speaker (qty 4, flat, white) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Wireless card (qty 1, flat, white) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Battery (qty 5, flat, black)black finish | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Fan (qty 4, flat, black)black finish | Confirmed |
| M2 | 5 mm | 0.4 mm | not stated | not stated | Keyboard (qty 1, flat, black)black finish | Confirmed |
| M2 | 5 mm | 0.4 mm | not stated | not stated | System board (qty 1, flat, white) | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Base cover (qty 2, flat, black)black finish | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Display (qty 4, flat, black)black finish | Confirmed |
Fitment records and sources
System board (qty 6, flat, white)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Fan (qty 4, flat, white)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Keyboard (qty 4, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Speaker (qty 4, flat, white)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Wireless card (qty 1, flat, white)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Battery (qty 5, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Fan (qty 4, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Keyboard (qty 1, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (qty 1, flat, white)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Base cover (qty 2, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
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
- 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.
- 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.
- 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.
- 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 2.5–6 mm, which means different positions take different lengths — match each hole to its own screw.
- 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.
- 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).
- 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.
- M2.5 and M3 look the same to the naked eye — you need calipers on the shank to tell them apart.
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.
-
M2 x 2.5mm Screws for Dell XPS 14 9440 M.2 SSD Drive – 10-Pack Black
$4.99 -
M2 x 2.5mm Screws for ASUS ROG Strix G17 G713 SSD WiFi Touchpad 10-Pack Black
$4.99
-
M2 x 3mm Screws for Dell XPS 13 9340 Base Cover SSD Shield 10-Pack Black
$4.99 -
10x M2 x 3mm Phillips Screws for Lenovo ThinkPad X131e Chromebook WiFi SSD
$4.99
-
M2 x 4mm Phillips Wafer Head Machine Screws Black 50-Pack Laptop SSD Repair
$4.49 each · min. 2
-
M2 x 4mm Screws for Dell Latitude 5530 SSD Type-C Bracket 10-Pack Black
$4.99
-
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
$0.10Choose size -
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
$0.10Choose size
More in Laptops & PCs
The same screw also fits
Devices whose records share a thread with Lenovo IdeaPad U300e, closest length match first.
- Acer Aspire 5235 also M2 × 3 mm
- HP ProBook x360 11 G5 EE also M2 × 2.5 mm
- Toshiba Satellite A30 also M2 × 3 mm
- ASUS S62F also M2 × 3 mm
- Lenovo ThinkPad X41 Tablet also M2 × 2.5 mm
- HP mt42 Mobile Thin Client also M2 × 3 mm
- Dell Inspiron 16 5620 also M2 × 3 mm
- Acer Extensa 5630Z also M2 × 3 mm
Questions about Lenovo IdeaPad U300e screws
- What size screw does Lenovo IdeaPad U300e use?
- M2 × 2.5 mm for system board (qty 6, flat, white); M2 × 3 mm for fan (qty 4, flat, white); M2 × 3 mm for keyboard (qty 4, flat, black); M2 × 3 mm for speaker (qty 4, flat, white); M2 × 3 mm for wireless card (qty 1, flat, white); M2 × 4 mm for battery (qty 5, flat, black); M2 × 4 mm for fan (qty 4, flat, black); M2 × 5 mm for keyboard (qty 1, flat, black); M2 × 5 mm for system board (qty 1, flat, white); M2.5 × 6 mm for base cover (qty 2, flat, black); M2.5 × 6 mm for display (qty 4, flat, black).
- How long are the screws in Lenovo IdeaPad U300e?
- The records range from 2.5 to 6 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 IdeaPad U300e?
- 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 IdeaPad U300e?
- TechSpareWarehouse (our own store) lists M2 x 2.5mm, M2 x 3mm and M2 x 4mm, which match lengths in the records above.