HP 500 screw size
M2 / M2.5 / M3 · 3 to 9 mm long
Our records put HP 500 on M2, M2.5 and M3 screws in lengths from 3 to 9 mm.
There are 20 separate fitment records for it, including card reader (qty 2, Phillips) (M2), hinge (qty 4, Phillips) (M2) and memory (qty 87, Phillips) (M2), plus 17 more in the table below.
Head and drive, as the sources state them: Phillips drive.
20 of the 20 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 500 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 | Phillips | Card reader (qty 2, Phillips) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Hinge (qty 4, Phillips) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Memory (qty 87, Phillips) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Optical drive (qty 2, Phillips) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | System board (Phillips) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Unspecified (qty 7, Phillips) | Confirmed |
| M2 | 7 mm | 0.4 mm | not stated | Phillips | Display (qty 2, Phillips) | Confirmed |
| M2 | 9 mm | 0.4 mm | not stated | Phillips | Display (qty 2, Phillips) | Confirmed |
| M2 | 9 mm | 0.4 mm | not stated | Phillips | Fan (Phillips) | Confirmed |
| M2 | 9 mm | 0.4 mm | not stated | Phillips | Keyboard (qty 2, Phillips) | Confirmed |
| M2 | 9 mm | 0.4 mm | not stated | Phillips | Memory (qty 85, Phillips) | Confirmed |
| M2 | 9 mm | 0.4 mm | not stated | Phillips | Optical drive (Phillips) | Confirmed |
| M2 | 9 mm | 0.4 mm | not stated | Phillips | Speaker (Phillips) | Confirmed |
| M2 | 9 mm | 0.4 mm | not stated | Phillips | Unspecified (qty 7, Phillips) | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | Phillips | Display (qty 8, Phillips) | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | Phillips | Heat sink (qty 4, Phillips) | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | Phillips | Unspecified (qty 89, Phillips) | Confirmed |
| M2.5 | 8 mm | 0.45 mm | not stated | Phillips | Hard drive (qty 2, Phillips) | Confirmed |
| M2.5 | 8 mm | 0.45 mm | not stated | Phillips | Memory (qty 81, captive, Phillips)captive | Confirmed |
| M3 | 3 mm | 0.5 mm | not stated | Phillips | Hard drive (qty 4, Phillips) | Confirmed |
Fitment records and sources
Card reader (qty 2, 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
Memory (qty 87, 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
System board (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
Display (qty 2, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 2, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Fan (Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Keyboard (qty 2, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Memory (qty 85, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Optical drive (Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Speaker (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
Display (qty 8, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Heat sink (qty 4, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 89, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hard drive (qty 2, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Memory (qty 81, captive, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hard drive (qty 4, 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 3–9 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
- The standard M.2 SSD screw is M2 x 3mm, but some laptops and handhelds use non-standard lengths or head shapes.
- M2.5 pitch is 0.45mm vs M3's 0.5mm and M2's 0.4mm — forcing the wrong one strips plastic bosses instantly.
- Thorlabs' 16mm cage system standard plates use dual 4-40 (UNC) and M3 taps on the same plate (e.g., SP01), so metric and imperial fasteners are both valid depending on the region/kit purchased.
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 500, closest length match first.
- Lenovo V330-14ARR also M3 × 3 mm
- Lenovo G505 also M2 × 3 mm
- Lenovo Y50-80 Touch also M2 × 3 mm
- HP 256 G3 also M2 × 3 mm
- Dell XPS 13 9310 also M2 × 3 mm
- Acer Aspire 5530G also M2 × 3 mm
- Dell Pro 14 PC14250 also M2 × 3 mm
- Acer Emachines EM250 also M2 × 3 mm
Questions about HP 500 screws
- What size screw does HP 500 use?
- M2 × 3 mm for card reader (qty 2, Phillips); M2 × 3 mm for hinge (qty 4, Phillips); M2 × 3 mm for memory (qty 87, Phillips); M2 × 3 mm for optical drive (qty 2, Phillips); M2 × 3 mm for system board (Phillips); M2 × 3 mm for unspecified (qty 7, Phillips); M2 × 7 mm for display (qty 2, Phillips); M2 × 9 mm for display (qty 2, Phillips); M2 × 9 mm for fan (Phillips); M2 × 9 mm for keyboard (qty 2, Phillips); M2 × 9 mm for memory (qty 85, Phillips); M2 × 9 mm for optical drive (Phillips); M2 × 9 mm for speaker (Phillips); M2 × 9 mm for unspecified (qty 7, Phillips); M2.5 × 6 mm for display (qty 8, Phillips); M2.5 × 6 mm for heat sink (qty 4, Phillips); M2.5 × 6 mm for unspecified (qty 89, Phill.
- How long are the screws in HP 500?
- The records range from 3 to 9 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 500?
- 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 500?
- TechSpareWarehouse (our own store) lists M2 x 3mm, M2.5 x 6mm and M2.5 x 8mm, which match lengths in the records above.



