Lenovo Y50-70 Touch screw size
M2 / M2.5 / M3 · 2 to 11 mm long
Lenovo Y50-70 Touch takes M2, M2.5 and M3 metric screws in lengths from 2 to 11 mm.
There are 22 separate fitment records for it, including base cover (qty 3, flat, black) (M2), LED board (qty 1, flat, black) (M2) and display (qty 1, flat, black) (M2), plus 19 more in the table below.
22 of the 22 records are marked confirmed, drawn from 1 source (download.lenovo.com).
M2 means a 2 mm nominal diameter with a 0.4 mm thread pitch. Imperial look-alike: #2-56 UNC (2.18 mm) is close but not interchangeable.
Lenovo Y50-70 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 | 11 mm | 0.4 mm | not stated | not stated | Base cover (qty 3, flat, black)black finish | Confirmed |
| M2 | 2 mm | 0.4 mm | not stated | not stated | LED board (qty 1, flat, black)black finish | Confirmed |
| M2 | 2 mm | 0.4 mm | not stated | not stated | Display (qty 1, flat, black)black finish | Confirmed |
| M2 | 2 mm | 0.4 mm | not stated | not stated | Speaker (qty 4, flat, black)black finish | Confirmed |
| M2 | 2 mm | 0.4 mm | not stated | not stated | Unspecified (qty 2, flat, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | I/O board (qty 2, flat, black,silver)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | LED board (qty 1, flat, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Battery (qty 5, flat, black)black finish | Confirmed |
| 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 3, flat, silver) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | System board (qty 6, flat, black,silver)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Wireless card (qty 1, flat, black)black finish | Confirmed |
| M2 | 5 mm | 0.4 mm | not stated | not stated | Base cover (qty 9, flat, black)black finish | Confirmed |
| M2 | 6.5 mm | 0.4 mm | not stated | not stated | Fan (qty 6, flat, black)black finish | Confirmed |
| M2.5 | 2.5 mm | 0.45 mm | not stated | not stated | Display (qty 10, flat, black,silver)black finish | Confirmed |
| M2.5 | 4.45 mm | 0.45 mm | not stated | not stated | I/O board (qty 1, flat, silver) | Confirmed |
| M2.5 | 4.45 mm | 0.45 mm | not stated | not stated | Fan (qty 2, flat, silver) | Confirmed |
| M2.5 | 4.45 mm | 0.45 mm | not stated | not stated | Hard drive (qty 4, flat, silver) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Battery (qty 4, flat, black)black finish | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Display (qty 6, flat, black)black finish | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Hard drive (qty 4, flat, black)black finish | Confirmed |
| M3 | 3 mm | 0.5 mm | not stated | not stated | Hard drive (qty 4, flat, silver) | Confirmed |
Fitment records and sources
Base cover (qty 3, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
LED board (qty 1, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 1, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Speaker (qty 4, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 2, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
I/O board (qty 2, flat, black,silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
LED board (qty 1, flat, black)
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
Display (qty 4, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Fan (qty 3, flat, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (qty 6, flat, black,silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Wireless card (qty 1, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Base cover (qty 9, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Fan (qty 6, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 10, flat, black,silver)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
I/O board (qty 1, flat, silver)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Fan (qty 2, 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
Battery (qty 4, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 6, flat, black)
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
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 2–11 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 Y50-70 Touch, closest length match first.
- Dell Inspiron 15 3502 also M2 × 2 mm
- Dell Inspiron 1200 also M2 × 3 mm
- Lenovo IdeaPad U400 also M2 × 3 mm
- Lenovo ThinkPad E555 also M2 × 3 mm
- Lenovo ThinkPad E525 also M2 × 3 mm
- Lenovo IdeaPad U300s also M2 × 3 mm
- Lenovo ideapad 320H-14ISK also M2 × 3 mm
- HP 2133 Mini-Note PC (2140 page id 3872994) also M2 × 3 mm
Questions about Lenovo Y50-70 Touch screws
- What size screw does Lenovo Y50-70 Touch use?
- M2 × 11 mm for base cover (qty 3, flat, black); M2 × 2 mm for LED board (qty 1, flat, black); M2 × 2 mm for display (qty 1, flat, black); M2 × 2 mm for speaker (qty 4, flat, black); M2 × 2 mm for unspecified (qty 2, flat, black); M2 × 3 mm for I/O board (qty 2, flat, black,silver); M2 × 3 mm for LED board (qty 1, flat, black); M2 × 3 mm for battery (qty 5, flat, black); M2 × 3 mm for display (qty 4, flat, black); M2 × 3 mm for fan (qty 3, flat, silver); M2 × 3 mm for system board (qty 6, flat, black,silver); M2 × 3 mm for wireless card (qty 1, flat, black); M2 × 5 mm for base cover (qty 9, flat, black); M2 × 6.5 mm for fan (qty 6, flat, black); M2.5 × 2.5 mm for display (qty 10, flat, black,.
- How long are the screws in Lenovo Y50-70 Touch?
- The records range from 2 to 11 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 Y50-70 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 Y50-70 Touch?
- TechSpareWarehouse (our own store) lists M2 x 2mm, M2 x 3mm and M2 x 5mm, which match lengths in the records above.




