HP Mini 5101 screw size
M2 / M2.5 · 2 to 11 mm long
Our records put HP Mini 5101 on M2 and M2.5 screws in lengths from 2 to 11 mm.
There are 18 separate fitment records for it, including memory (qty 81, Phillips) (M2), power button (qty 3, broadhead, Phillips) (M2) and fan (qty 2, Phillips) (M2), plus 15 more in the table below.
Head and drive, as the sources state them: Phillips and Torx T8 drives.
18 of the 18 records are marked confirmed, drawn from 1 source (tim.id.au).
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 Mini 5101 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 | Memory (qty 81, Phillips) | Confirmed |
| M2 | 2 mm | 0.4 mm | not stated | Phillips | Power button (qty 3, broadhead, Phillips) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Fan (qty 2, Phillips) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Hard drive (qty 2, captive, Phillips)captive | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Hinge (qty 2, Phillips) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Keyboard (qty 3, Phillips) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Memory (qty 85, Phillips) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Torx T8 | Palm rest (qty 4, Torx T8) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | System board (Phillips) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | Phillips | Wireless card (qty 2, Phillips) | Confirmed |
| M2 | 6 mm | 0.4 mm | not stated | Phillips | Memory (qty 87, Phillips) | Confirmed |
| M2 | 7 mm | 0.4 mm | not stated | Phillips | Fan (qty 4, captive, Phillips)captive | Confirmed |
| M2 | 7 mm | 0.4 mm | not stated | Phillips | Unspecified (qty 89, captive, Phillips)captive | Confirmed |
| M2.5 | 11 mm | 0.45 mm | not stated | Phillips | Hard drive (captive, Phillips)captive | Confirmed |
| M2.5 | 11 mm | 0.45 mm | not stated | Phillips | Unspecified (qty 93, captive, Phillips)captive | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | Phillips | Display (qty 6, Phillips) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | Torx T8 | Unspecified (qty 91, Torx T8) | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | Phillips | Display (qty 2, Phillips) | Confirmed |
Fitment records and sources
Memory (qty 81, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Power button (qty 3, broadhead, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Fan (qty 2, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hard drive (qty 2, captive, 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
Keyboard (qty 3, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Memory (qty 85, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Palm rest (qty 4, Torx T8)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (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
Memory (qty 87, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Fan (qty 4, captive, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 89, captive, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hard drive (captive, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 93, captive, 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
Unspecified (qty 91, Torx T8)
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
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 2–11 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
- The standard M.2 SSD screw is M2 x 3mm, but some laptops and handhelds use non-standard lengths or head shapes.
- Tamiya Mini 4WD parts are labelled plainly as '2mm' rather than M2; resellers add the M2 label themselves.
- M2.5 pitch is 0.45mm vs M3's 0.5mm and M2's 0.4mm — forcing the wrong one strips plastic bosses instantly.
- M2.5 and M3 look the same to the naked eye — you need calipers on the shank to tell them apart.
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 Mini 5101, closest length match first.
- HP ProBook 4525s also M2 × 2 mm
- HP ProBook 450 G3 also M2 × 3 mm
- Lenovo ThinkPad T16 Gen 1 also M2 × 3 mm
- Lenovo ideapad 330-17IKB also M2 × 3 mm
- Lenovo ThinkPad S230u also M2 × 3 mm
- Dell Latitude 7300 also M2 × 2 mm
- Dell Pro 16 PC16250 also M2 × 2 mm
- Lenovo ideapad 330E-17AST U also M2 × 3 mm
Questions about HP Mini 5101 screws
- What size screw does HP Mini 5101 use?
- M2 × 2 mm for memory (qty 81, Phillips); M2 × 2 mm for power button (qty 3, broadhead, Phillips); M2 × 3 mm for fan (qty 2, Phillips); M2 × 3 mm for hard drive (qty 2, captive, Phillips); M2 × 3 mm for hinge (qty 2, Phillips); M2 × 3 mm for keyboard (qty 3, Phillips); M2 × 3 mm for memory (qty 85, Phillips); M2 × 3 mm for palm rest (qty 4, Torx T8); M2 × 3 mm for system board (Phillips); M2 × 4 mm for wireless card (qty 2, Phillips); M2 × 6 mm for memory (qty 87, Phillips); M2 × 7 mm for fan (qty 4, captive, Phillips); M2 × 7 mm for unspecified (qty 89, captive, Phillips); M2.5 × 11 mm for hard drive (captive, Phillips); M2.5 × 11 mm for unspecified (qty 93, captive, Phillips); M2.5 × 5 mm f.
- How long are the screws in HP Mini 5101?
- The records range from 2 to 11 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 Mini 5101?
- The source lists a Phillips and Torx T8 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 Mini 5101?
- TechSpareWarehouse (our own store) lists M2 x 2mm, M2 x 3mm and M2 x 4mm, which match lengths in the records above.