HP Pavilion 6600 screw size
M2 / M2.5 / M3 · 2 to 7 mm long
Our records put HP Pavilion 6600 on M2, M2.5 and M3 screws in lengths from 2 to 7 mm.
There are 26 separate fitment records for it, including wireless card (qty 2, Phillips) (M2), hinge (qty 2, Phillips) (M2) and optical drive (qty 2, Phillips) (M2), plus 23 more in the table below.
Head and drive, as the sources state them: Phillips drive.
26 of the 26 records are marked confirmed, drawn from 1 source (tim.id.au).
M2 means a 2 mm nominal diameter with a 0.4 mm thread pitch. Imperial look-alike: #2-56 UNC (2.18 mm) is close but not interchangeable.
HP Pavilion 6600 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 mm | 0.4 mm | not stated | Phillips | Wireless card (qty 2, Phillips) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Hinge (qty 2, 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 | Power button (Phillips) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Unspecified (Phillips) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Wireless card (qty 2, Phillips) | Confirmed |
| M2 | 5 mm | 0.4 mm | not stated | Phillips | Hard drive (qty 2, Phillips) | Confirmed |
| M2 | 5 mm | 0.4 mm | not stated | Phillips | Memory (qty 2, Phillips) | Confirmed |
| M2.5 | 2 mm | 0.45 mm | not stated | Phillips | Palm rest (qty 3, Phillips) | Confirmed |
| M2.5 | 2 mm | 0.45 mm | not stated | Phillips | Speaker (qty 2, Phillips) | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | Phillips | I/O board (qty 2, Phillips) | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | Phillips | Card reader (qty 4, Phillips) | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | Phillips | Display (qty 6, Phillips) | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | Phillips | Fan (qty 3, Phillips) | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | Phillips | Palm rest (qty 2, Phillips) | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | Phillips | System board (qty 2, Phillips) | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | Phillips | Unspecified (qty 2, Phillips) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | Phillips | Display bezel (qty 4, Phillips) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | Phillips | Fan (qty 3, Phillips) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | Phillips | Palm rest (qty 1, Phillips) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | Phillips | Unspecified (qty 6, Phillips) | Confirmed |
| M2.5 | 7 mm | 0.45 mm | not stated | Phillips | Display (qty 2, Phillips) | Confirmed |
| M2.5 | 7 mm | 0.45 mm | not stated | Phillips | Keyboard (qty 4, Phillips) | Confirmed |
| M2.5 | 7 mm | 0.45 mm | not stated | Phillips | Optical drive (Phillips) | Confirmed |
| M2.5 | 7 mm | 0.45 mm | not stated | Phillips | Palm rest (qty 9, Phillips) | Confirmed |
| M3 | 3 mm | 0.5 mm | not stated | Phillips | Hard drive (qty 4, Phillips) | Confirmed |
Fitment records and sources
Wireless card (qty 2, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hinge (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
Power button (Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Wireless card (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
Memory (qty 2, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Palm rest (qty 3, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Speaker (qty 2, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
I/O board (qty 2, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Card reader (qty 4, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 6, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Fan (qty 3, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 2, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
System board (qty 2, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 2, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display bezel (qty 4, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Fan (qty 3, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 1, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 6, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 2, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Keyboard (qty 4, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Optical drive (Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 9, 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 2–7 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 / 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.
- PC cases mix M3 (fans, optical and 2.5in drives) with imperial 6-32 (3.5in drives, motherboard standoffs) - don't force one into the other.
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 Pavilion 6600, closest length match first.
- Toshiba Satellite M30X laptop LCD module bracket also M2 × 3 mm
- Lenovo ThinkPad T14 Gen 2 also M2 × 2 mm
- Acer TravelMate 6493 also M2 × 3 mm
- Dell Vostro 15 3535 also M2 × 2 mm
- HP EliteBook 850 G3 also M2 × 3 mm
- Lenovo ThinkPad 1720 also M2.5 × 4 mm
- Lenovo ThinkPad T41p also M2 × 3 mm
- HP Compaq Presario F500 also M2 × 3 mm
Questions about HP Pavilion 6600 screws
- What size screw does HP Pavilion 6600 use?
- M2 × 2 mm for wireless card (qty 2, Phillips); M2 × 3 mm for hinge (qty 2, Phillips); M2 × 3 mm for optical drive (qty 2, Phillips); M2 × 3 mm for power button (Phillips); M2 × 3 mm for unspecified (Phillips); M2 × 3 mm for wireless card (qty 2, Phillips); M2 × 5 mm for hard drive (qty 2, Phillips); M2 × 5 mm for memory (qty 2, Phillips); M2.5 × 2 mm for palm rest (qty 3, Phillips); M2.5 × 2 mm for speaker (qty 2, Phillips); M2.5 × 4 mm for I/O board (qty 2, Phillips); M2.5 × 4 mm for card reader (qty 4, Phillips); M2.5 × 4 mm for display (qty 6, Phillips); M2.5 × 4 mm for fan (qty 3, Phillips); M2.5 × 4 mm for palm rest (qty 2, Phillips); M2.5 × 4 mm for system board (qty 2, Phillips); M2.5.
- How long are the screws in HP Pavilion 6600?
- The records range from 2 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 Pavilion 6600?
- 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 Pavilion 6600?
- TechSpareWarehouse (our own store) lists M2 x 2mm, M2 x 3mm and M2 x 5mm, which match lengths in the records above.




