Lenovo IdeaPad U330 Touch screw size
M2 / M2.5 / M3 · 2.5 to 10 mm long
Our records put Lenovo IdeaPad U330 Touch on M2, M2.5 and M3 screws in lengths from 2.5 to 10 mm.
There are 19 separate fitment records for it, including battery (qty 2, flat, silver) (M2), display (qty 4, flat, silver) (M2) and wireless card (qty 2, flat, black) (M2), plus 16 more in the table below.
19 of the 19 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 U330 Touch 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 | 10 mm | 0.4 mm | not stated | not stated | Battery (qty 2, flat, silver) | Confirmed |
| M2 | 2.5 mm | 0.4 mm | not stated | not stated | Display (qty 4, flat, silver) | Confirmed |
| M2 | 2.5 mm | 0.4 mm | not stated | not stated | Wireless card (qty 2, flat, black)black finish | Confirmed |
| M2 | 3.5 mm | 0.4 mm | not stated | not stated | Unspecified (qty 1, flat, black)black finish | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Battery (qty 10, flat, silver) | Confirmed |
| M2 | 6.8 mm | 0.4 mm | not stated | not stated | Unspecified (qty 4, flat, black)black finish | Confirmed |
| M2 | 8 mm | 0.4 mm | not stated | not stated | Battery (qty 2, flat, silver) | Confirmed |
| M2.5 | 3 mm | 0.45 mm | not stated | not stated | I/O board (qty 2, flat, black)black finish | Confirmed |
| M2.5 | 3 mm | 0.45 mm | not stated | not stated | Battery (qty 5, flat, black)black finish | Confirmed |
| M2.5 | 3 mm | 0.45 mm | not stated | not stated | Display (qty 8, flat, silver) | Confirmed |
| M2.5 | 3 mm | 0.45 mm | not stated | not stated | Hard drive (qty 4, flat, black)black finish | Confirmed |
| M2.5 | 3 mm | 0.45 mm | not stated | not stated | System board (qty 7, flat, black)black finish | Confirmed |
| M2.5 | 3 mm | 0.45 mm | not stated | not stated | Unspecified (qty 2, flat, black)black finish | Confirmed |
| M2.5 | 3.5 mm | 0.45 mm | not stated | not stated | I/O board (qty 2, flat, silver) | Confirmed |
| M2.5 | 3.5 mm | 0.45 mm | not stated | not stated | Battery (qty 5, flat, black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Display (qty 4, flat, silver) | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Hard drive (qty 4, flat, black)black finish | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Display (qty 4, flat, black)black finish | Confirmed |
| M3 | 3.5 mm | 0.5 mm | not stated | not stated | Hard drive (qty 4, flat, silver) | Confirmed |
Fitment records and sources
Battery (qty 2, flat, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 4, flat, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Wireless card (qty 2, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 1, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Battery (qty 10, flat, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 4, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Battery (qty 2, flat, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
I/O board (qty 2, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Battery (qty 5, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 8, flat, silver)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hard drive (qty 4, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
System board (qty 7, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 2, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
I/O board (qty 2, flat, silver)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Battery (qty 5, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (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 0.45 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
Hard drive (qty 4, flat, silver)
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 2.5–10 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
- 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.
- Suunto dive computer service manuals reference strap pins and battery compartment springs but do not explicitly cite a metric screw thread size in the sections reviewed; do not infer M2/M2.5 fitment for Suunto dive computer straps without direct confirmation.
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 U330 Touch, closest length match first.
- Lenovo ThinkPad T22 also M2 × 4 mm
- HP 520 also M2 × 4 mm
- Lenovo ThinkPad T16g Gen 3 also M2 × 2.5 mm
- Lenovo ThinkPad X60s also M2 × 2.5 mm
- Lenovo ThinkPad X61s also M2 × 2.5 mm
- Lenovo Yoga 500-15IBD also M2 × 2.5 mm
- Lenovo ThinkPad X250 also M2 × 4 mm
- Dell Latitude 5580 also M2 × 2.5 mm
Questions about Lenovo IdeaPad U330 Touch screws
- What size screw does Lenovo IdeaPad U330 Touch use?
- M2 × 10 mm for battery (qty 2, flat, silver); M2 × 2.5 mm for display (qty 4, flat, silver); M2 × 2.5 mm for wireless card (qty 2, flat, black); M2 × 3.5 mm for unspecified (qty 1, flat, black); M2 × 4 mm for battery (qty 10, flat, silver); M2 × 6.8 mm for unspecified (qty 4, flat, black); M2 × 8 mm for battery (qty 2, flat, silver); M2.5 × 3 mm for I/O board (qty 2, flat, black); M2.5 × 3 mm for battery (qty 5, flat, black); M2.5 × 3 mm for display (qty 8, flat, silver); M2.5 × 3 mm for hard drive (qty 4, flat, black); M2.5 × 3 mm for system board (qty 7, flat, black); M2.5 × 3 mm for unspecified (qty 2, flat, black); M2.5 × 3.5 mm for I/O board (qty 2, flat, silver); M2.5 × 3.5 mm for batt.
- How long are the screws in Lenovo IdeaPad U330 Touch?
- The records range from 2.5 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 U330 Touch?
- 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 U330 Touch?
- TechSpareWarehouse (our own store) lists M2 x 2.5mm, M2 x 4mm and M2 x 8mm, which match lengths in the records above.




