Acer TravelMate 4000 screw size
M2.5 · 6 mm long
Our records put Acer TravelMate 4000 on M2.5 screws, 6 mm long.
There are 3 separate fitment records for it, including I/O bezel (qty 2) (M2.5), base cover (qty 14) (M2.5) and heat sink (qty 1) (M2.5).
3 of the 3 records are marked confirmed, drawn from 1 source (tim.id.au).
For reference, M2.5 is 2.5 mm across the threads at 0.45 mm pitch. The imperial size people confuse it with: #3-48 / #4-40 (2.51 / 2.84 mm) — #4-40 is the common US stand-in and it will NOT thread in.
Acer TravelMate 4000 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 |
|---|---|---|---|---|---|---|
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | I/O bezel (qty 2) | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Base cover (qty 14) | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Heat sink (qty 1) | Confirmed |
Fitment records and sources
I/O bezel (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Base cover (qty 14)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Heat sink (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
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 M2.5 screw measures about 2.5 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.45 mm from one thread crest to the next (22.22 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 record states 6 mm. Going longer risks bottoming out or touching parts behind the hole; going shorter loses thread engagement.
- Driver: the source does not name the drive. Standard M2.5 heads take PH1 for Phillips and T8 for Torx, and a 2 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 M2.5 is about 45-70 N·cm into metal threads and 20-35 N·cm into plastic bosses; snug it up and stop.
Common mix-ups with M2.5
- M2.5 and M3 look the same to the naked eye — you need calipers on the shank to tell them apart.
- M2.5 pitch is 0.45mm vs M3's 0.5mm and M2's 0.4mm — forcing the wrong one strips plastic bosses instantly.
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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M2.5 x 6mm Laptop Motherboard Replacement Screws Wafer Head 10-Pack Black
$4.99 -
10x M2.5 x 6mm Phillips Screws for Lenovo ThinkPad X131e Chromebook LCD Hinge
$4.99
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ASUS ROG Strix G15 G513R Replacement Screws Sold Individually – M1.6 x 3mm, M2 x 2.5mm, M2 x 3mm, M2.5 x 6mm Phillips Wafer Head, Black
$0.10Choose size
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ASUS ROG Strix G17 G713 Replacement Screws Sold Individually – M1.6 x 3mm, M2 x 2.5mm, M2 x 3mm, M2.5 x 6mm Phillips Wafer Head, Black
$0.10Choose size
More in Laptops & PCs
The same screw also fits
Devices whose records share a thread with Acer TravelMate 4000, closest length match first.
- Lenovo ThinkPad 770ED also M2.5 × 6 mm
- Acer Aspire 4715Z also M2.5 × 6 mm
- HP 425 also M2.5 × 6 mm
- HP Elite c640 14 inch G3 Chromebook™ also M2.5 × 6 mm
- Lenovo WorkPad Z50 also M2.5 × 6 mm
- Acer Ferrari 1200 also M2.5 × 6 mm
- Acer Aspire 1410 also M2.5 × 6 mm
- Dell Latitude 7480 also M2.5 × 6 mm
Questions about Acer TravelMate 4000 screws
- What size screw does Acer TravelMate 4000 use?
- M2.5 × 6 mm for I/O bezel (qty 2); M2.5 × 6 mm for base cover (qty 14); M2.5 × 6 mm for heat sink (qty 1).
- How long are the screws in Acer TravelMate 4000?
- The record gives 6 mm. Measure the original from under the head (overall for a countersunk head) to confirm before ordering.
- What is the thread pitch of an M2.5 screw?
- 0.45 mm (coarse), which is the standard pitch for M2.5 machine screws; a 0.35 mm fine pitch exists but is uncommon. The tap drill is 2.05 mm and the normal clearance hole is 2.9 mm.
- What screwdriver do I need for Acer TravelMate 4000?
- The sources do not name the drive. For M2.5, Phillips heads normally take PH1 and Torx heads T8; socket heads take a 2 mm hex key.
- Can I use an imperial screw instead of M2.5?
- No. Imperial look-alike: #3-48 / #4-40 (2.51 / 2.84 mm) — #4-40 is the common US stand-in and it will NOT thread in. Use a true M2.5 screw so it does not cross-thread or strip the hole.
- Where can I buy replacement screws for Acer TravelMate 4000?
- TechSpareWarehouse (our own store) lists M2.5 x 6mm, which matches the length in the records above.