Acer TravelMate 7520 screw size
M2 / M2.5 / M3 · 3 to 8 mm long
Acer TravelMate 7520 takes M2, M2.5 and M3 metric screws in lengths from 3 to 8 mm.
There are 15 separate fitment records for it, including display (qty 4, silver) (M2), optical drive (qty 2, black) (M2) and hard drive (qty 2, black) (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 TravelMate 7520 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, silver) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Optical drive (qty 2, black)black finish | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Hard drive (qty 2, black)black finish | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Heat sink (qty 9, silver) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Speaker (qty 4, silver) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | System board (qty 4, silver) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Touchpad (qty 4, silver) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Unspecified (qty 9, black,silver)black finish | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Wireless card (qty 2, silver) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Hinge (qty 2, black)black finish | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Unspecified (qty 2, silver) | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Display (qty 20, black)black finish | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Display bezel (qty 8, black)black finish | Confirmed |
| M2.5 | 8 mm | 0.45 mm | not stated | not stated | Display (qty 2, black)black finish | Confirmed |
| M3 | 4 mm | 0.5 mm | not stated | not stated | Hard drive (qty 4, silver) | Confirmed |
Fitment records and sources
Display (qty 4, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Optical drive (qty 2, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hard drive (qty 2, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Heat sink (qty 9, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Speaker (qty 4, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (qty 4, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Touchpad (qty 4, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 9, black,silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Wireless card (qty 2, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hinge (qty 2, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 2, silver)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 20, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display bezel (qty 8, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 2, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hard drive (qty 4, 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 3–8 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).
- M2.5 and M3 look the same to the naked eye — you need calipers on the shank to tell them apart.
- 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 Acer TravelMate 7520, closest length match first.
- HP ProBook 4 G1iR 14 inch also M2 × 3 mm
- Lenovo ThinkPad Z13 Gen 2 also M2 × 4 mm
- Lenovo V15 Gen 5 i also M2 × 4 mm
- HP G50 also M2 × 3 mm
- Dell Latitude D820 also M2 × 3 mm
- Lenovo ThinkPad W701 also M2 × 3 mm
- Lenovo YOGA 720-12IKB also M2 × 3 mm
- Lenovo ThinkPad E325 also M2 × 3 mm
Questions about Acer TravelMate 7520 screws
- What size screw does Acer TravelMate 7520 use?
- M2 × 3 mm for display (qty 4, silver); M2 × 3 mm for optical drive (qty 2, black); M2 × 4 mm for hard drive (qty 2, black); M2 × 4 mm for heat sink (qty 9, silver); M2 × 4 mm for speaker (qty 4, silver); M2 × 4 mm for system board (qty 4, silver); M2 × 4 mm for touchpad (qty 4, silver); M2 × 4 mm for unspecified (qty 9, black,silver); M2 × 4 mm for wireless card (qty 2, silver); M2.5 × 5 mm for hinge (qty 2, black); M2.5 × 5 mm for unspecified (qty 2, silver); M2.5 × 6 mm for display (qty 20, black); M2.5 × 6 mm for display bezel (qty 8, black); M2.5 × 8 mm for display (qty 2, black); M3 × 4 mm for hard drive (qty 4, silver).
- How long are the screws in Acer TravelMate 7520?
- The records range from 3 to 8 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 TravelMate 7520?
- 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 TravelMate 7520?
- TechSpareWarehouse (our own store) lists M2 x 3mm, M2 x 4mm and M2.5 x 5mm, which match lengths in the records above.