HP EliteBook 845 14 inch G10 screw size
M2 / M2.5 · 2.5 to 9.5 mm long
The screws used on HP EliteBook 845 14 inch G10 are M2 and M2.5 in lengths from 2.5 to 9.5 mm.
There are 12 separate fitment records for it, including card reader (qty 3, broadhead, Phillips) (M2), power button (qty 1, broadhead, Phillips) (M2) and speaker (qty 4, broadhead, Phillips) (M2), plus 9 more in the table below.
Head and drive, as the sources state them: Phillips drive.
12 of the 12 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 EliteBook 845 14 inch G10 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 | 2.5 mm | 0.4 mm | not stated | Phillips | Card reader (qty 3, broadhead, Phillips) | Confirmed |
| M2 | 2.5 mm | 0.4 mm | not stated | Phillips | Power button (qty 1, broadhead, Phillips) | Confirmed |
| M2 | 2.5 mm | 0.4 mm | not stated | Phillips | Speaker (qty 4, broadhead, 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 | System board (qty 1, broadhead, Phillips) | Confirmed |
| M2 | 2.5 mm | 0.4 mm | not stated | Phillips | Wireless card (qty 1, Phillips) | Confirmed |
| M2 | 4.7 mm | 0.4 mm | not stated | Phillips | Battery (qty 4, Phillips) | Confirmed |
| M2 | 4.7 mm | 0.4 mm | not stated | Phillips | Bracket (qty 2, Phillips) | Confirmed |
| M2 | 4.7 mm | 0.4 mm | not stated | Phillips | System board (qty 2, Phillips) | Confirmed |
| M2 | 4.7 mm | 0.4 mm | not stated | Phillips | Unspecified (qty 1, Phillips) | Confirmed |
| M2.5 | 4.7 mm | 0.45 mm | not stated | Phillips | Display (qty 6, Phillips) | Confirmed |
| M2.5 | 9.5 mm | 0.45 mm | not stated | Phillips | Hinge (qty 6, Phillips) | Confirmed |
Fitment records and sources
Card reader (qty 3, broadhead, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Power button (qty 1, broadhead, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Speaker (qty 4, broadhead, 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
System board (qty 1, broadhead, 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
Battery (qty 4, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Bracket (qty 2, 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 1, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 6, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hinge (qty 6, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
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). 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 2.5–9.5 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 / 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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The same screw also fits
Devices whose records share a thread with HP EliteBook 845 14 inch G10, closest length match first.
- HP Spectre x360 also M2 × 2.5 mm
- Acer Aspire 7730 also M2 × 2.5 mm
- Lenovo IdeaPad Z585 also M2 × 2.5 mm
- HP ProBook 440 14 inch G11 also M2 × 2.5 mm
- Lenovo ThinkPad R14 Gen 2 also M2 × 2.5 mm
- Dell Latitude 5440 also M2 × 2.5 mm
- Dell Precision 3530 also M2 × 2.5 mm
- HP mt44 Mobile Thin Client also M2 × 2.5 mm
Questions about HP EliteBook 845 14 inch G10 screws
- What size screw does HP EliteBook 845 14 inch G10 use?
- M2 × 2.5 mm for card reader (qty 3, broadhead, Phillips); M2 × 2.5 mm for power button (qty 1, broadhead, Phillips); M2 × 2.5 mm for speaker (qty 4, broadhead, Phillips); M2 × 2.5 mm for SSD (qty 1, Phillips); M2 × 2.5 mm for system board (qty 1, broadhead, Phillips); M2 × 2.5 mm for wireless card (qty 1, Phillips); M2 × 4.7 mm for battery (qty 4, Phillips); M2 × 4.7 mm for bracket (qty 2, Phillips); M2 × 4.7 mm for system board (qty 2, Phillips); M2 × 4.7 mm for unspecified (qty 1, Phillips); M2.5 × 4.7 mm for display (qty 6, Phillips); M2.5 × 9.5 mm for hinge (qty 6, Phillips).
- How long are the screws in HP EliteBook 845 14 inch G10?
- The records range from 2.5 to 9.5 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 EliteBook 845 14 inch G10?
- 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 EliteBook 845 14 inch G10?
- TechSpareWarehouse (our own store) lists M2 x 2.5mm, which matches the length in the records above.