HP ProBook 450 G7 screw size
M2 / M2.5 / M3 · 2 to 6 mm long
Our records put HP ProBook 450 G7 on M2, M2.5 and M3 screws in lengths from 2 to 6 mm.
There are 19 separate fitment records for it, including battery (qty 1, Phillips) (M2), card reader (qty 2, Phillips) (M2) and touchpad (qty 6, broadhead, Phillips) (M2), plus 16 more in the table below.
Head and drive, as the sources state them: Phillips drive.
19 of the 19 records are marked confirmed, drawn from 1 source (kaas.hpcloud.hp.com).
An M2 screw is 2 mm in diameter with a 0.4 mm pitch, tapped with a 1.6 mm drill; imperial look-alike: #2-56 UNC (2.18 mm) is close but not interchangeable.
HP ProBook 450 G7 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 | Battery (qty 1, Phillips) | Confirmed |
| M2 | 2 mm | 0.4 mm | not stated | Phillips | Card reader (qty 2, Phillips) | Confirmed |
| M2 | 2 mm | 0.4 mm | not stated | Phillips | Touchpad (qty 6, broadhead, Phillips) | Confirmed |
| M2 | 2.5 mm | 0.4 mm | not stated | Phillips | Battery (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 | System board (qty 3, Phillips) | Confirmed |
| M2 | 2.5 mm | 0.4 mm | not stated | Phillips | Wireless card (qty 1, Phillips) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | Phillips | Battery (qty 2, Phillips) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | Phillips | Bracket (qty 2, Phillips) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | Phillips | Fan (qty 1, Phillips) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | Phillips | Hard drive (qty 2, Phillips) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | Phillips | Hinge (qty 1, broadhead, Phillips) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | Phillips | System board (qty 4, Phillips) | Confirmed |
| M2 | 5 mm | 0.4 mm | not stated | Phillips | Base cover (qty 2, Phillips) | Confirmed |
| M2 | 6 mm | 0.4 mm | not stated | Phillips | Speaker (qty 2, Phillips) | Confirmed |
| M2.5 | 2.5 mm | 0.45 mm | not stated | Phillips | Hinge (qty 2, broadhead, Phillips) | Confirmed |
| M2.5 | 2.5 mm | 0.45 mm | not stated | Phillips | System board (qty 1, broadhead, Phillips) | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | Phillips | I/O board (qty 1, Phillips) | Confirmed |
| M3 | 3 mm | 0.5 mm | not stated | Phillips | Hard drive (qty 4, Phillips) | Confirmed |
Fitment records and sources
Battery (qty 1, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Card reader (qty 2, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Touchpad (qty 6, broadhead, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Battery (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
System board (qty 3, 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 2, 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
Fan (qty 1, 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
Hinge (qty 1, broadhead, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (qty 4, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Base cover (qty 2, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Speaker (qty 2, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hinge (qty 2, broadhead, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
System board (qty 1, 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
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 2–6 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 ProBook 450 G7, closest length match first.
- Acer TravelMate 7220 also M2 × 4 mm
- Acer Aspire 4930 also M2 × 4 mm
- Lenovo ThinkPad L440 also M2 × 5 mm
- Lenovo ideapad 330S-15IKB GTX1050 also M2 × 6 mm
- Lenovo ThinkPad R400 also M2 × 2 mm
- Lenovo ThinkPad E450 also M2 × 2.5 mm
- Lenovo IdeaPad S200 also M2 × 2.5 mm
- Lenovo ThinkPad T430s also M2 × 4 mm
Questions about HP ProBook 450 G7 screws
- What size screw does HP ProBook 450 G7 use?
- M2 × 2 mm for battery (qty 1, Phillips); M2 × 2 mm for card reader (qty 2, Phillips); M2 × 2 mm for touchpad (qty 6, broadhead, Phillips); M2 × 2.5 mm for battery (qty 2, Phillips); M2 × 2.5 mm for SSD (qty 1, Phillips); M2 × 2.5 mm for system board (qty 3, Phillips); M2 × 2.5 mm for wireless card (qty 1, Phillips); M2 × 4 mm for battery (qty 2, Phillips); M2 × 4 mm for bracket (qty 2, Phillips); M2 × 4 mm for fan (qty 1, Phillips); M2 × 4 mm for hard drive (qty 2, Phillips); M2 × 4 mm for hinge (qty 1, broadhead, Phillips); M2 × 4 mm for system board (qty 4, Phillips); M2 × 5 mm for base cover (qty 2, Phillips); M2 × 6 mm for speaker (qty 2, Phillips); M2.5 × 2.5 mm for hinge (qty 2, broadh.
- How long are the screws in HP ProBook 450 G7?
- The records range from 2 to 6 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 ProBook 450 G7?
- 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 ProBook 450 G7?
- TechSpareWarehouse (our own store) lists M2 x 2mm, M2 x 2.5mm and M2 x 4mm, which match lengths in the records above.



