Lenovo IdeaPad U510 screw size
M2 / M2.5 / M3 · 2 to 10 mm long
Lenovo IdeaPad U510 takes M2, M2.5 and M3 metric screws in lengths from 2 to 10 mm.
There are 14 separate fitment records for it, including display (qty 4, flat, black) (M2), fan (qty 6, flat, silver) (M2) and SSD (qty 1, 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, 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 U510 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 | 3 mm | 0.4 mm | not stated | not stated | Display (qty 4, flat, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Fan (qty 6, flat, silver) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | SSD (qty 1, flat, black)black finish | Confirmed |
| M2.5 | 10 mm | 0.45 mm | not stated | not stated | Battery (qty 4, flat, black)black finish | Confirmed |
| M2.5 | 2 mm | 0.45 mm | not stated | not stated | Speaker (qty 4, flat, black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | I/O board (qty 1, flat, black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Display (flat, black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Fan (qty 1, flat, black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Unspecified (qty 1, flat, black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Wireless card (qty 1, flat, black)black finish | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Battery (qty 3, flat, silver) | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Chassis/frame (qty 1, flat, silver) | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Hard drive (qty 4, flat, silver) | Confirmed |
| M3 | 3 mm | 0.5 mm | not stated | not stated | Hard drive (qty 4, flat, black)black finish | Confirmed |
Fitment records and sources
Display (qty 4, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Fan (qty 6, flat, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
SSD (qty 1, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Battery (qty 4, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Speaker (qty 4, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
I/O board (qty 1, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Fan (qty 1, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 1, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Wireless card (qty 1, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Battery (qty 3, flat, silver)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Chassis/frame (qty 1, flat, silver)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hard drive (qty 4, flat, silver)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hard drive (qty 4, flat, black)
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
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 / M3, 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 2–10 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 / M3
- 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.
- 3.5in desktop and enterprise hard drives are 6-32 UNC imperial, not M3 - only the 2.5in form factor is metric.
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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More in Laptops & PCs
The same screw also fits
Devices whose records share a thread with Lenovo IdeaPad U510, closest length match first.
- Lenovo G41-35 also M2.5 × 4 mm
- Acer Aspire 3650 also M2.5 × 10 mm
- Dell XPS M140 also M2 × 3 mm
- HP Compaq nx7300 also M2 × 3 mm
- Lenovo Flex 3-1570 (HSW) also M2.5 × 4 mm
- Dell Alienware area51m R2 also M2 × 3 mm
- Lenovo B475e also M2 × 3 mm
- Lenovo ThinkPad Edge E120 also M2 × 3 mm
Questions about Lenovo IdeaPad U510 screws
- What size screw does Lenovo IdeaPad U510 use?
- M2 × 3 mm for display (qty 4, flat, black); M2 × 3 mm for fan (qty 6, flat, silver); M2 × 3 mm for SSD (qty 1, flat, black); M2.5 × 10 mm for battery (qty 4, flat, black); M2.5 × 2 mm for speaker (qty 4, flat, black); M2.5 × 4 mm for I/O board (qty 1, flat, black); M2.5 × 4 mm for display (flat, black); M2.5 × 4 mm for fan (qty 1, flat, black); M2.5 × 4 mm for unspecified (qty 1, flat, black); M2.5 × 4 mm for wireless card (qty 1, flat, black); M2.5 × 6 mm for battery (qty 3, flat, silver); M2.5 × 6 mm for chassis/frame (qty 1, flat, silver); M2.5 × 6 mm for hard drive (qty 4, flat, silver); M3 × 3 mm for hard drive (qty 4, flat, black).
- How long are the screws in Lenovo IdeaPad U510?
- The records range from 2 to 10 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 U510?
- 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 U510?
- TechSpareWarehouse (our own store) lists M2 x 3mm, M2.5 x 10mm and M2.5 x 4mm, which match lengths in the records above.



