HP 340 G2 screw size
M2 / M2.5 · 2 to 6.5 mm long
HP 340 G2 takes M2 and M2.5 metric screws in lengths from 2 to 6.5 mm.
There are 18 separate fitment records for it, including card reader (qty 1, broadhead, Phillips) (M2), palm rest (qty 4, broadhead, Phillips) (M2) and display (qty 4, Phillips) (M2), plus 15 more in the table below.
Head and drive, as the sources state them: Phillips drive.
18 of the 18 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 340 G2 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 | Card reader (qty 1, broadhead, Phillips) | Confirmed |
| M2 | 2 mm | 0.4 mm | not stated | Phillips | Palm rest (qty 4, broadhead, Phillips) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Display (qty 4, Phillips) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Optical drive (qty 1, Phillips) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Power button (qty 1, Phillips) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Touchpad (qty 2, Phillips) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Wireless card (qty 1, Phillips) | Confirmed |
| M2 | 3.75 mm | 0.4 mm | not stated | Phillips | Display bezel (qty 2, Phillips) | Confirmed |
| M2 | 5.5 mm | 0.4 mm | not stated | Phillips | System board (qty 2, Phillips) | Confirmed |
| M2.5 | 3.25 mm | 0.45 mm | not stated | Phillips | Display (qty 4, broadhead, Phillips) | Confirmed |
| M2.5 | 3.25 mm | 0.45 mm | not stated | Phillips | Hinge (qty 4, broadhead, Phillips) | Confirmed |
| M2.5 | 4.5 mm | 0.45 mm | not stated | Phillips | I/O board (qty 1, Phillips) | Confirmed |
| M2.5 | 4.5 mm | 0.45 mm | not stated | Phillips | Display (qty 3, Phillips) | Confirmed |
| M2.5 | 4.5 mm | 0.45 mm | not stated | Phillips | Memory (qty 1, captive, Phillips)captive | Confirmed |
| M2.5 | 4.5 mm | 0.45 mm | not stated | Phillips | System board (qty 4, Phillips) | Confirmed |
| M2.5 | 4.5 mm | 0.45 mm | not stated | Phillips | Unspecified (qty 1, captive, Phillips)captive | Confirmed |
| M2.5 | 6.5 mm | 0.45 mm | not stated | Phillips | Keyboard (qty 2, Phillips) | Confirmed |
| M2.5 | 6.5 mm | 0.45 mm | not stated | Phillips | Palm rest (qty 10, 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
Palm rest (qty 4, broadhead, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 4, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Optical drive (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
Touchpad (qty 2, 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
Display bezel (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
Display (qty 4, broadhead, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hinge (qty 4, broadhead, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
I/O board (qty 1, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 3, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Memory (qty 1, captive, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
System board (qty 4, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 1, captive, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Keyboard (qty 2, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 10, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
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, 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 2–6.5 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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More in Laptops & PCs
The same screw also fits
Devices whose records share a thread with HP 340 G2, closest length match first.
- Lenovo ThinkPad E16 Gen 1 also M2 × 2 mm
- HP Compaq Business NX7000 also M2 × 3 mm
- Lenovo G70-35 also M2 × 3 mm
- HP m1-u000 through m1-u099) also M2 × 2 mm
- HP Envy x360 also M2 × 3 mm
- Dell Latitude 131l also M2 × 3 mm
- HP 340 G3 also M2 × 2 mm
- HP EliteBook 840 G11 also M2 × 2 mm
Questions about HP 340 G2 screws
- What size screw does HP 340 G2 use?
- M2 × 2 mm for card reader (qty 1, broadhead, Phillips); M2 × 2 mm for palm rest (qty 4, broadhead, Phillips); M2 × 3 mm for display (qty 4, Phillips); M2 × 3 mm for optical drive (qty 1, Phillips); M2 × 3 mm for power button (qty 1, Phillips); M2 × 3 mm for touchpad (qty 2, Phillips); M2 × 3 mm for wireless card (qty 1, Phillips); M2 × 3.75 mm for display bezel (qty 2, Phillips); M2 × 5.5 mm for system board (qty 2, Phillips); M2.5 × 3.25 mm for display (qty 4, broadhead, Phillips); M2.5 × 3.25 mm for hinge (qty 4, broadhead, Phillips); M2.5 × 4.5 mm for I/O board (qty 1, Phillips); M2.5 × 4.5 mm for display (qty 3, Phillips); M2.5 × 4.5 mm for memory (qty 1, captive, Phillips); M2.5 × 4.5 m.
- How long are the screws in HP 340 G2?
- The records range from 2 to 6.5 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 340 G2?
- 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 340 G2?
- TechSpareWarehouse (our own store) lists M2 x 2mm, M2 x 3mm and M2 x 4mm, which match lengths in the records above.