Acer Aspire 4740G screw size
M2 / M2.5 / M3 · 3 to 10 mm long
The screws used on Acer Aspire 4740G are M2, M2.5 and M3 in lengths from 3 to 10 mm.
There are 21 separate fitment records for it, including display (qty 6) (M2), hinge (qty 2) (M2) and optical drive (qty 2) (M2), plus 18 more in the table below.
21 of the 21 records are marked confirmed, drawn from 1 source (tim.id.au).
An M2 screw is 2 mm in diameter with a 0.4 mm pitch, tapped with a 1.6 mm drill; imperial look-alike: #2-56 UNC (2.18 mm) is close but not interchangeable.
Acer Aspire 4740G 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 6) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Hinge (qty 2) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Optical drive (qty 2) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Touchpad (qty 2) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Unspecified (qty 18) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Wireless card (qty 2) | Confirmed |
| M2.5 | 10 mm | 0.45 mm | not stated | not stated | Unspecified (qty 10) | Confirmed |
| M2.5 | 3 mm | 0.45 mm | not stated | not stated | I/O board (qty 1) | Confirmed |
| M2.5 | 3 mm | 0.45 mm | not stated | not stated | Camera (qty 1) | Confirmed |
| M2.5 | 3 mm | 0.45 mm | not stated | not stated | Display (qty 1) | Confirmed |
| M2.5 | 3 mm | 0.45 mm | not stated | not stated | Speaker (qty 2) | Confirmed |
| M2.5 | 3 mm | 0.45 mm | not stated | not stated | System board (qty 1) | Confirmed |
| M2.5 | 3 mm | 0.45 mm | not stated | not stated | Unspecified (qty 12) | Confirmed |
| M2.5 | 3 mm | 0.45 mm | not stated | not stated | Wireless card (qty 1) | Confirmed |
| M2.5 | 3.2 mm | 0.45 mm | not stated | not stated | Heat sink (qty 4) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Display (qty 2) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Display bezel (qty 6) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Hinge (qty 2) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Optical drive (qty 1) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Unspecified (qty 12) | Confirmed |
| M3 | 3 mm | 0.5 mm | not stated | not stated | Hard drive (qty 4) | Confirmed |
Fitment records and sources
Display (qty 6)
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
Optical drive (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Touchpad (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 18)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Wireless card (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 10)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
I/O board (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Camera (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Speaker (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
System board (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 12)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Wireless card (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Heat sink (qty 4)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display bezel (qty 6)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hinge (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Optical drive (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 12)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hard drive (qty 4)
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
How to check the screw before you buy
- Laptop covers and brackets often mix two or three lengths of the same thread, so lay the screws out in the order they came out (a magnetic mat or a sheet of paper with the hole pattern drawn on it works).
- 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 3–10 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.
- M2.5 pitch is 0.45mm vs M3's 0.5mm and M2's 0.4mm — forcing the wrong one strips plastic bosses instantly.
- Camera tripod and Arca threads are imperial 1/4-20 and 3/8-16, never M3.
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 4740G, closest length match first.
- HP Chromebook 14 G7 (id 38457196) also M2.5 × 3 mm
- HP EliteBook 840 G6 also M2 × 3 mm
- HP 246 G4 also M2 × 3 mm
- Lenovo E40-80 also M2 × 3 mm
- Acer TravelMate 5710 also M2 × 3 mm
- Lenovo Y70-80 Touch also M2 × 3 mm
- Lenovo E51-80 also M2 × 3 mm
- Lenovo ThinkPad L14 Gen 2 also M2 × 3 mm
Questions about Acer Aspire 4740G screws
- What size screw does Acer Aspire 4740G use?
- M2 × 3 mm for display (qty 6); M2 × 3 mm for hinge (qty 2); M2 × 3 mm for optical drive (qty 2); M2 × 3 mm for touchpad (qty 2); M2 × 3 mm for unspecified (qty 18); M2 × 3 mm for wireless card (qty 2); M2.5 × 10 mm for unspecified (qty 10); M2.5 × 3 mm for I/O board (qty 1); M2.5 × 3 mm for camera (qty 1); M2.5 × 3 mm for display (qty 1); M2.5 × 3 mm for speaker (qty 2); M2.5 × 3 mm for system board (qty 1); M2.5 × 3 mm for unspecified (qty 12); M2.5 × 3 mm for wireless card (qty 1); M2.5 × 3.2 mm for heat sink (qty 4); M2.5 × 5 mm for display (qty 2); M2.5 × 5 mm for display bezel (qty 6); M2.5 × 5 mm for hinge (qty 2); M2.5 × 5 mm for optical drive (qty 1); M2.5 × 5 mm for unspecified (qty.
- How long are the screws in Acer Aspire 4740G?
- The records range from 3 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 Acer Aspire 4740G?
- 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 4740G?
- TechSpareWarehouse (our own store) lists M2 x 3mm, M2.5 x 10mm and M2.5 x 3mm, which match lengths in the records above.




