HP 4000 are separate HP products not checked) screw size
M2 / M2.5 / M3 · 2.8 to 8 mm long
HP 4000 are separate HP products not checked) takes M2, M2.5 and M3 metric screws in lengths from 2.8 to 8 mm.
There are 19 separate fitment records for it, including I/O board (qty 2, Phillips) (M2), battery (qty 4, Phillips) (M2) and card reader (qty 1, Phillips) (M2), plus 16 more in the table below.
Head and drive, as the sources state them: Phillips drive.
19 of the 19 records are marked confirmed, drawn from 1 source (kaas.hpcloud.hp.com).
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 4000 are separate HP products not checked) 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 | 2.8 mm | 0.4 mm | not stated | Phillips | I/O board (qty 2, Phillips) | Confirmed |
| M2 | 2.8 mm | 0.4 mm | not stated | Phillips | Battery (qty 4, Phillips) | Confirmed |
| M2 | 2.8 mm | 0.4 mm | not stated | Phillips | Card reader (qty 1, Phillips) | Confirmed |
| M2 | 2.8 mm | 0.4 mm | not stated | Phillips | Hard drive (qty 3, Phillips) | Confirmed |
| M2 | 2.8 mm | 0.4 mm | not stated | Phillips | Heat sink (qty 6, Phillips) | Confirmed |
| M2 | 2.8 mm | 0.4 mm | not stated | Phillips | Hinge (qty 1, Phillips) | Confirmed |
| M2 | 2.8 mm | 0.4 mm | not stated | Phillips | Power button (qty 1, Phillips) | Confirmed |
| M2 | 2.8 mm | 0.4 mm | not stated | Phillips | SSD (qty 3, Phillips) | Confirmed |
| M2 | 2.8 mm | 0.4 mm | not stated | Phillips | System board (qty 3, Phillips) | Confirmed |
| M2 | 2.8 mm | 0.4 mm | not stated | Phillips | Touchpad (qty 2, Phillips) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Memory (qty 1, Phillips) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | SSD (qty 1, Phillips) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Wireless card (qty 1, Phillips) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | Phillips | Base cover (qty 2, Phillips) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | Phillips | Fan (qty 1, Phillips) | Confirmed |
| M2.5 | 3.5 mm | 0.45 mm | not stated | Phillips | Hinge (qty 3, Phillips) | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | Phillips | Display (qty 4, Phillips) | Confirmed |
| M2.5 | 8 mm | 0.45 mm | not stated | Phillips | Base cover (qty 4, Phillips) | Confirmed |
| M3 | 3 mm | 0.5 mm | not stated | Phillips | Hard drive (qty 1, Phillips) | Confirmed |
Fitment records and sources
I/O board (qty 2, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Battery (qty 4, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Card reader (qty 1, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hard drive (qty 3, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Heat sink (qty 6, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hinge (qty 1, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Power button (qty 1, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
SSD (qty 3, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (qty 3, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Touchpad (qty 2, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Memory (qty 1, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
SSD (qty 1, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Wireless card (qty 1, 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
Fan (qty 1, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hinge (qty 3, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 4, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Base cover (qty 4, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hard drive (qty 1, Phillips)
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 2.8–8 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 / 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.
- Power-tool gearcase and clamshell screws are usually thread-forming (marked "ST") even when the parts list gives an M-size — a normal machine screw of the same size may not hold in the plastic boss.
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 4000 are separate HP products not checked), closest length match first.
- Lenovo B50-30 Touch also M2 × 3 mm
- Lenovo V15 Gen 2 also M2 × 2.8 mm
- Lenovo E50-70 also M2 × 3 mm
- Lenovo ThinkPad SL300 also M2 × 3 mm
- Lenovo 1500 also M2 × 4 mm
- Dell G5 15 5505 also M2 × 3 mm
- Lenovo ThinkPad E41-55 also M2 × 3 mm
- HP Mini 1101 also M2 × 3 mm
Questions about HP 4000 are separate HP products not checked) screws
- What size screw does HP 4000 are separate HP products not checked) use?
- M2 × 2.8 mm for I/O board (qty 2, Phillips); M2 × 2.8 mm for battery (qty 4, Phillips); M2 × 2.8 mm for card reader (qty 1, Phillips); M2 × 2.8 mm for hard drive (qty 3, Phillips); M2 × 2.8 mm for heat sink (qty 6, Phillips); M2 × 2.8 mm for hinge (qty 1, Phillips); M2 × 2.8 mm for power button (qty 1, Phillips); M2 × 2.8 mm for SSD (qty 3, Phillips); M2 × 2.8 mm for system board (qty 3, Phillips); M2 × 2.8 mm for touchpad (qty 2, Phillips); M2 × 3 mm for memory (qty 1, Phillips); M2 × 3 mm for SSD (qty 1, Phillips); M2 × 3 mm for wireless card (qty 1, Phillips); M2 × 4 mm for base cover (qty 2, Phillips); M2 × 4 mm for fan (qty 1, Phillips); M2.5 × 3.5 mm for hinge (qty 3, Phillips); M2.5 ×.
- How long are the screws in HP 4000 are separate HP products not checked)?
- The records range from 2.8 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 4000 are separate HP products not checked)?
- 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 4000 are separate HP products not checked)?
- TechSpareWarehouse (our own store) lists M2 x 3mm, M2 x 4mm and M2.5 x 6mm, which match lengths in the records above.


