HP Compaq Armada 110 screw size
M2.5 · 4.5 to 7 mm long
HP Compaq Armada 110 takes M2.5 metric screws in lengths from 4.5 to 7 mm.
There are 13 separate fitment records for it, including display (qty 2) (M2.5), hard drive (qty 2) (M2.5) and memory (qty 4) (M2.5), plus 10 more in the table below.
13 of the 13 records are marked confirmed, drawn from 1 source (tim.id.au).
An M2.5 screw is 2.5 mm in diameter with a 0.45 mm pitch, tapped with a 2.05 mm drill; imperial look-alike: #3-48 / #4-40 (2.51 / 2.84 mm) — #4-40 is the common US stand-in and it will NOT thread in.
HP Compaq Armada 110 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 |
|---|---|---|---|---|---|---|
| M2.5 | 4.5 mm | 0.45 mm | not stated | not stated | Display (qty 2) | Confirmed |
| M2.5 | 4.5 mm | 0.45 mm | not stated | not stated | Hard drive (qty 2) | Confirmed |
| M2.5 | 4.5 mm | 0.45 mm | not stated | not stated | Memory (qty 4) | Confirmed |
| M2.5 | 4.5 mm | 0.45 mm | not stated | not stated | Optical drive (qty 1) | Confirmed |
| M2.5 | 4.5 mm | 0.45 mm | not stated | not stated | Palm rest (qty 2) | Confirmed |
| M2.5 | 4.5 mm | 0.45 mm | not stated | not stated | Unspecified (qty 10) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Keyboard (qty 2) | Confirmed |
| M2.5 | 5.5 mm | 0.45 mm | not stated | not stated | Hard drive (qty 3) | Confirmed |
| M2.5 | 5.5 mm | 0.45 mm | not stated | not stated | System board (qty 2) | Confirmed |
| M2.5 | 5.5 mm | 0.45 mm | not stated | not stated | Unspecified (qty 1) | Confirmed |
| M2.5 | 7 mm | 0.45 mm | not stated | not stated | Hinge (qty 4) | Confirmed |
| M2.5 | 7 mm | 0.45 mm | not stated | not stated | Memory (qty 4) | Confirmed |
| M2.5 | 7 mm | 0.45 mm | not stated | not stated | Unspecified (qty 10) | Confirmed |
Fitment records and sources
Display (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hard drive (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Memory (qty 4)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Optical drive (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 10)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Keyboard (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hard drive (qty 3)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
System board (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hinge (qty 4)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Memory (qty 4)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 10)
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 M2.5 screw measures about 2.5 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.45 mm from one thread crest to the next (22.22 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 4.5–7 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source does not name the drive. Standard M2.5 heads take PH1 for Phillips and T8 for Torx, and a 2 mm hex key for socket heads; a bit that fits loosely will cam out and strip the head.
- Tightening: no device-specific torque is published in these records. The site's general figure for M2.5 is about 45-70 N·cm into metal threads and 20-35 N·cm into plastic bosses; snug it up and stop.
Common mix-ups with M2.5
- 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 Compaq Armada 110, closest length match first.
- Lenovo S435 also M2.5 × 5 mm
- HP mt44 Mobile Thin Client also M2.5 × 5 mm
- HP Pavilion dv9000 Entertainment also M2.5 × 5 mm
- Dell Precision 3530 also M2.5 × 5 mm
- Dell Inspiron 16 5630 also M2.5 × 5 mm
- HP Pavilion ze5600 also M2.5 × 7 mm
- Lenovo ThinkPad 760series also M2.5 × 5 mm
- HP Compaq nx7300 also M2.5 × 5 mm
Questions about HP Compaq Armada 110 screws
- What size screw does HP Compaq Armada 110 use?
- M2.5 × 4.5 mm for display (qty 2); M2.5 × 4.5 mm for hard drive (qty 2); M2.5 × 4.5 mm for memory (qty 4); M2.5 × 4.5 mm for optical drive (qty 1); M2.5 × 4.5 mm for palm rest (qty 2); M2.5 × 4.5 mm for unspecified (qty 10); M2.5 × 5 mm for keyboard (qty 2); M2.5 × 5.5 mm for hard drive (qty 3); M2.5 × 5.5 mm for system board (qty 2); M2.5 × 5.5 mm for unspecified (qty 1); M2.5 × 7 mm for hinge (qty 4); M2.5 × 7 mm for memory (qty 4); M2.5 × 7 mm for unspecified (qty 10).
- How long are the screws in HP Compaq Armada 110?
- The records range from 4.5 to 7 mm depending on the position, so match each screw to its own hole.
- What is the thread pitch of an M2.5 screw?
- 0.45 mm (coarse), which is the standard pitch for M2.5 machine screws; a 0.35 mm fine pitch exists but is uncommon. The tap drill is 2.05 mm and the normal clearance hole is 2.9 mm.
- What screwdriver do I need for HP Compaq Armada 110?
- The sources do not name the drive. For M2.5, Phillips heads normally take PH1 and Torx heads T8; socket heads take a 2 mm hex key.
- Can I use an imperial screw instead of M2.5?
- No. Imperial look-alike: #3-48 / #4-40 (2.51 / 2.84 mm) — #4-40 is the common US stand-in and it will NOT thread in. Use a true M2.5 screw so it does not cross-thread or strip the hole.
- Where can I buy replacement screws for HP Compaq Armada 110?
- TechSpareWarehouse (our own store) lists M2.5 x 5mm, which matches the length in the records above.