HP Compaq N180 screw size
M2 / M2.5 · 4 to 8 mm long
HP Compaq N180 takes M2 and M2.5 metric screws in lengths from 4 to 8 mm.
There are 13 separate fitment records for it, including keyboard (qty 4, Phillips) (M2), card reader (qty 2, Phillips) (M2) and hard drive (qty 2, Phillips) (M2), plus 10 more in the table below.
Head and drive, as the sources state them: Phillips drive.
13 of the 13 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.
HP Compaq N180 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 | 4.5 mm | 0.4 mm | not stated | Phillips | Keyboard (qty 4, Phillips) | Confirmed |
| M2 | 5.5 mm | 0.4 mm | not stated | Phillips | Card reader (qty 2, Phillips) | Confirmed |
| M2 | 5.5 mm | 0.4 mm | not stated | Phillips | Hard drive (qty 2, Phillips) | Confirmed |
| M2 | 5.5 mm | 0.4 mm | not stated | Phillips | Heat sink (qty 4, Phillips) | Confirmed |
| M2 | 5.5 mm | 0.4 mm | not stated | Phillips | Memory (qty 2, Phillips) | Confirmed |
| M2 | 5.5 mm | 0.4 mm | not stated | Phillips | Optical drive (qty 2, Phillips) | Confirmed |
| M2 | 5.5 mm | 0.4 mm | not stated | Phillips | Palm rest (qty 4, Phillips) | Confirmed |
| M2 | 5.5 mm | 0.4 mm | not stated | Phillips | Unspecified (qty 3, Phillips) | Confirmed |
| M2 | 8 mm | 0.4 mm | not stated | Phillips | Base cover (qty 2, Phillips) | Confirmed |
| M2 | 8 mm | 0.4 mm | not stated | Phillips | Display (qty 4, Phillips) | Confirmed |
| M2 | 8 mm | 0.4 mm | not stated | Phillips | Hinge (qty 4, Phillips) | Confirmed |
| M2 | 8 mm | 0.4 mm | not stated | Phillips | Unspecified (qty 7, Phillips) | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | Phillips | Hard drive (qty 4, Phillips) | Confirmed |
Fitment records and sources
Keyboard (qty 4, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Card reader (qty 2, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hard drive (qty 2, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Heat sink (qty 4, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Memory (qty 2, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Optical drive (qty 2, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Palm rest (qty 4, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 3, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Base cover (qty 2, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 4, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hinge (qty 4, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 7, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hard drive (qty 4, Phillips)
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 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 4–8 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
- 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).
- The standard M.2 SSD screw is M2 x 3mm, but some laptops and handhelds use non-standard lengths or head shapes.
- 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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More in Laptops & PCs
The same screw also fits
Devices whose records share a thread with HP Compaq N180, closest length match first.
- HP Pavilion dv2000 Entertainment also M2.5 × 4 mm
- HP Spectre 12-a0xx also M2 × 4.5 mm
- Lenovo ThinkPad T440 also M2.5 × 4 mm
- Lenovo ThinkPad 14.1WS also M2.5 × 4 mm
- Lenovo G585 also M2.5 × 4 mm
- HP EliteBook 8460w also M2.5 × 4 mm
- HP ZBook Power 15.6 inch G10 also M2.5 × 4 mm
- Dell Inspiron 14 5494 also M2.5 × 4 mm
Questions about HP Compaq N180 screws
- What size screw does HP Compaq N180 use?
- M2 × 4.5 mm for keyboard (qty 4, Phillips); M2 × 5.5 mm for card reader (qty 2, Phillips); M2 × 5.5 mm for hard drive (qty 2, Phillips); M2 × 5.5 mm for heat sink (qty 4, Phillips); M2 × 5.5 mm for memory (qty 2, Phillips); M2 × 5.5 mm for optical drive (qty 2, Phillips); M2 × 5.5 mm for palm rest (qty 4, Phillips); M2 × 5.5 mm for unspecified (qty 3, Phillips); M2 × 8 mm for base cover (qty 2, Phillips); M2 × 8 mm for display (qty 4, Phillips); M2 × 8 mm for hinge (qty 4, Phillips); M2 × 8 mm for unspecified (qty 7, Phillips); M2.5 × 4 mm for hard drive (qty 4, Phillips).
- How long are the screws in HP Compaq N180?
- The records range from 4 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 HP Compaq N180?
- The source lists a Phillips 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 N180?
- TechSpareWarehouse (our own store) lists M2 x 8mm and M2.5 x 4mm, which match lengths in the records above.