HP Compaq N610C screw size
M2 / M2.5 · 2.5 to 7 mm long
If you are replacing a screw on HP Compaq N610C, the thread is M2 and M2.5 in lengths from 2.5 to 7 mm.
There are 6 separate fitment records for it, including bracket (qty 6, Phillips) (M2), fan (qty 3, Phillips) (M2) and unspecified (qty 6, Torx T8) (M2), plus 3 more in the table below.
Head and drive, as the sources state them: Phillips and Torx T8 drives.
6 of the 6 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.
HP Compaq N610C 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 | 4 mm | 0.4 mm | not stated | Phillips | Bracket (qty 6, Phillips) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | Phillips | Fan (qty 3, Phillips) | Confirmed |
| M2 | 7 mm | 0.4 mm | not stated | Torx T8 | Unspecified (qty 6, Torx T8) | Confirmed |
| M2.5 | 2.5 mm | 0.45 mm | not stated | Phillips | Unspecified (Phillips) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | Phillips | Fan (Phillips) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | Phillips | Wireless card (qty 2, Phillips) | Confirmed |
Fitment records and sources
Bracket (qty 6, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Fan (qty 3, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 6, Torx T8)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Fan (Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Wireless card (qty 2, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
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, 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 2.5–7 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source names a Phillips drive. For comparison, standard M2 heads take PH0 (Phillips) or T6 (Torx), or a 1.5 mm hex key.
- 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
- 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).
- M2.5 pitch is 0.45mm vs M3's 0.5mm and M2's 0.4mm — forcing the wrong one strips plastic bosses instantly.
- M2.5 and M3 look the same to the naked eye — you need calipers on the shank to tell them apart.
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.
-
M2 x 4mm Phillips Wafer Head Machine Screws Black 50-Pack Laptop SSD Repair
$4.49 each · min. 2
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M2 x 4mm Screws for Dell Latitude 5530 SSD Type-C Bracket 10-Pack Black
$4.99
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M2.5 x 5mm Screws Compatible with Dell XPS 14 9440 Display Assembly 10-Pack
$4.99 -
M2.5 x 5mm Phillips Wafer Head Screw for Action Camera Protective Housing - Pack of 50 Black
$4.79 each · min. 2
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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 -
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
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Dell Latitude 5530 Replacement Screws Sold Individually – M2 x 3mm, M2 x 4mm, M2.5 x 5mm Phillips Wafer Head, Black
$0.10Choose size -
HP EliteBook 840 G8 Replacement Screws Sold Individually – M1.6 x 3mm, M2 x 2.5mm, M2 x 4mm, M2.5 x 4mm Phillips Wafer Head, Black
$0.10Choose size
More in Laptops & PCs
The same screw also fits
Devices whose records share a thread with HP Compaq N610C, closest length match first.
- Dell Chromebook 11 3180 also M2.5 × 2.5 mm
- Lenovo ThinkPad 385 also M2 × 4 mm
- Acer Aspire 8942G also M2.5 × 5 mm
- Lenovo ThinkPad E560p also M2 × 4 mm
- HP ProBook 445 G8 also M2 × 4 mm
- Lenovo ideapad 720S-15IKB Lenovo ideapad 720S Touch-15IKB also M2 × 4 mm
- Lenovo Flex 3-1435 also M2 × 4 mm
- Acer TravelMate 5720 also M2 × 4 mm
Questions about HP Compaq N610C screws
- What size screw does HP Compaq N610C use?
- M2 × 4 mm for bracket (qty 6, Phillips); M2 × 4 mm for fan (qty 3, Phillips); M2 × 7 mm for unspecified (qty 6, Torx T8); M2.5 × 2.5 mm for unspecified (Phillips); M2.5 × 5 mm for fan (Phillips); M2.5 × 5 mm for wireless card (qty 2, Phillips).
- How long are the screws in HP Compaq N610C?
- The records range from 2.5 to 7 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 HP Compaq N610C?
- The source lists a Phillips and Torx T8 drive. Standard M2 heads otherwise take PH0 (Phillips) or T6 (Torx), or 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 HP Compaq N610C?
- TechSpareWarehouse (our own store) lists M2 x 4mm and M2.5 x 5mm, which match lengths in the records above.