Acer Aspire 1420P screw size
M2 · 2.5 to 5 mm long
Our records put Acer Aspire 1420P on M2 screws in lengths from 2.5 to 5 mm.
There are 15 separate fitment records for it, including display (qty 4) (M2), unspecified (qty 8, silver) (M2) and hinge (qty 3) (M2), plus 12 more in the table below.
15 of the 15 records are marked confirmed, drawn from 1 source (tim.id.au).
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.
Acer Aspire 1420P 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 | Display (qty 4) | Confirmed |
| M2 | 2.5 mm | 0.4 mm | not stated | not stated | Unspecified (qty 8, silver) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Hinge (qty 3) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Speaker (qty 2) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Unspecified (qty 7, blue) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Wireless card (qty 1, black)black finish | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | I/O board (qty 1) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | LED board (qty 2) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Display (qty 5) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Hinge (qty 2) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | System board (qty 2) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Unspecified (qty 26) | Confirmed |
| M2 | 5 mm | 0.4 mm | not stated | not stated | Display (qty 5) | Confirmed |
| M2 | 5 mm | 0.4 mm | not stated | not stated | Display bezel (qty 2) | Confirmed |
| M2 | 5 mm | 0.4 mm | not stated | not stated | Unspecified (qty 16) | Confirmed |
Fitment records and sources
Display (qty 4)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 8, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hinge (qty 3)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Speaker (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 7, blue)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Wireless card (qty 1, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
I/O board (qty 1)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
LED board (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 5)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hinge (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 26)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 5)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display bezel (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 16)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
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). If yours measures noticeably more or less, it is a different thread.
- 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 2.5–5 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source does not name the drive. Standard 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
- The standard M.2 SSD screw is M2 x 3mm, but some laptops and handhelds use non-standard lengths or head shapes.
- 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).
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 Acer Aspire 1420P, closest length match first.
- Lenovo ThinkPad E41-25 also M2 × 3 mm
- HP OmniBook 16-bc1xxx also M2 × 2.5 mm
- Lenovo ideapad 320-17AST also M2 × 3 mm
- Lenovo ideapad 320R-14IKB also M2 × 3 mm
- Lenovo ideapad 100 also M2 × 3 mm
- Lenovo ThinkPad Yoga 11e 4th Gen also M2 × 2.5 mm
- Dell Latitude 7380 also M2 × 2.5 mm
- Lenovo IdeaPad Z500 Touch also M2 × 2.5 mm
Questions about Acer Aspire 1420P screws
- What size screw does Acer Aspire 1420P use?
- M2 × 2.5 mm for display (qty 4); M2 × 2.5 mm for unspecified (qty 8, silver); M2 × 3 mm for hinge (qty 3); M2 × 3 mm for speaker (qty 2); M2 × 3 mm for unspecified (qty 7, blue); M2 × 3 mm for wireless card (qty 1, black); M2 × 4 mm for I/O board (qty 1); M2 × 4 mm for LED board (qty 2); M2 × 4 mm for display (qty 5); M2 × 4 mm for hinge (qty 2); M2 × 4 mm for system board (qty 2); M2 × 4 mm for unspecified (qty 26); M2 × 5 mm for display (qty 5); M2 × 5 mm for display bezel (qty 2); M2 × 5 mm for unspecified (qty 16).
- How long are the screws in Acer Aspire 1420P?
- The records range from 2.5 to 5 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 Acer Aspire 1420P?
- 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 Acer Aspire 1420P?
- TechSpareWarehouse (our own store) lists M2 x 2.5mm, M2 x 3mm and M2 x 4mm, which match lengths in the records above.