HP Spectre 12-a0xx screw size
M2 · 2.2 to 4.5 mm long
If you are replacing a screw on HP Spectre 12-a0xx, the thread is M2 in lengths from 2.2 to 4.5 mm.
There are 10 separate fitment records for it, including card reader (qty 1, broadhead, Phillips) (M2), system board (qty 2, broadhead, Phillips) (M2) and heat sink (qty 2, Phillips) (M2), plus 7 more in the table below.
Head and drive, as the sources state them: Phillips drive.
10 of the 10 records are marked confirmed, drawn from 1 source (h10032.www1.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 Spectre 12-a0xx 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 | 2.2 mm | 0.4 mm | not stated | Phillips | Card reader (qty 1, broadhead, Phillips) | Confirmed |
| M2 | 2.2 mm | 0.4 mm | not stated | Phillips | System board (qty 2, broadhead, Phillips) | Confirmed |
| M2 | 2.5 mm | 0.4 mm | not stated | Phillips | Heat sink (qty 2, Phillips) | Confirmed |
| M2 | 2.5 mm | 0.4 mm | not stated | Phillips | SSD (qty 1, Phillips) | Confirmed |
| M2 | 2.5 mm | 0.4 mm | not stated | Phillips | Wireless card (qty 1, Phillips) | Confirmed |
| M2 | 3.4 mm | 0.4 mm | not stated | Phillips | Bracket (qty 1, Phillips) | Confirmed |
| M2 | 3.4 mm | 0.4 mm | not stated | Phillips | Speaker (qty 4, Phillips) | Confirmed |
| M2 | 3.5 mm | 0.4 mm | not stated | Phillips | Battery (qty 6, Phillips) | Confirmed |
| M2 | 4.5 mm | 0.4 mm | not stated | Phillips | System board (qty 2, Phillips) | Confirmed |
| M2 | 4.5 mm | 0.4 mm | not stated | Phillips | Unspecified (qty 4, Phillips) | Confirmed |
Fitment records and sources
Card reader (qty 1, broadhead, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (qty 2, broadhead, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Heat sink (qty 2, 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
Bracket (qty 1, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Speaker (qty 4, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Battery (qty 6, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (qty 2, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 4, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
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). If yours measures noticeably more or less, it is a different thread.
- 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 2.2–4.5 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
- 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.
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 Spectre 12-a0xx, closest length match first.
- Lenovo ThinkPad 14.1WS also M2 × 3.5 mm
- HP Compaq N180 also M2 × 4.5 mm
- HP ZBook Power 15.6 inch G10 also M2 × 2.5 mm
- HP EliteBook 660 16 inch G11 also M2 × 2.5 mm
- Dell Vostro 14 5401 also M2 × 2.5 mm
- Dell Latitude 7650 also M2 × 2.5 mm
- Dell Latitude 5350 also M2 × 2.5 mm
- Lenovo ThinkPad E335 also M2 × 3.5 mm
Questions about HP Spectre 12-a0xx screws
- What size screw does HP Spectre 12-a0xx use?
- M2 × 2.2 mm for card reader (qty 1, broadhead, Phillips); M2 × 2.2 mm for system board (qty 2, broadhead, Phillips); M2 × 2.5 mm for heat sink (qty 2, Phillips); M2 × 2.5 mm for SSD (qty 1, Phillips); M2 × 2.5 mm for wireless card (qty 1, Phillips); M2 × 3.4 mm for bracket (qty 1, Phillips); M2 × 3.4 mm for speaker (qty 4, Phillips); M2 × 3.5 mm for battery (qty 6, Phillips); M2 × 4.5 mm for system board (qty 2, Phillips); M2 × 4.5 mm for unspecified (qty 4, Phillips).
- How long are the screws in HP Spectre 12-a0xx?
- The records range from 2.2 to 4.5 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 Spectre 12-a0xx?
- 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 Spectre 12-a0xx?
- TechSpareWarehouse (our own store) lists M2 x 2mm and M2 x 2.5mm, which match lengths in the records above.