CubeSat internal component mounting to structural panels screw size
M2.5 · 5 mm long
If you are replacing a screw on CubeSat internal component mounting to structural panels, the thread is M2.5, 5 mm long.
Where it is used: M2.5 x 5mm Torx recommended for internal component mounting.
Head and drive, as the source states them: Torx drive.
This entry is marked confirmed and comes from scholarworks.wmich.edu.
M2.5 means a 2.5 mm nominal diameter with a 0.45 mm thread pitch. 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.
CubeSat internal component mounting to structural panels 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 | 5 mm | 0.45 mm | not stated | Torx | M2.5 x 5mm Torx recommended for internal component mounting | Confirmed |
Fitment records and sources
M2.5 x 5mm Torx recommended for internal component mounting
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
How to check the screw before you buy
- Take one original screw out first and measure it before ordering; the record above tells you the thread, the original screw tells you the exact length and head.
- 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 record states 5 mm. Going longer risks bottoming out or touching parts behind the hole; going shorter loses thread engagement.
- Driver: the source names a Torx drive. For comparison, standard M2.5 heads take PH1 (Phillips) or T8 (Torx), or a 2 mm hex key.
- 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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M2.5 x 5mm Screws Compatible with Dell XPS 14 9440 Display Assembly 10-Pack
$4.99 -
M2.5 x 5mm Phillips Wafer Head Screw for Action Camera Protective Housing - Pack of 50 Black
$4.79 each · min. 2
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Dell Inspiron 15 3520 Replacement Screws Sold Individually – M2 x 3mm, M2 x 5mm, M2.5 x 5mm, M3 x 3mm Phillips Wafer Head, Black
$0.10Choose size -
Dell Latitude 5430 Replacement Screws Sold Individually – M2 x 2.5mm, M2 x 3mm, M2 x 5mm, M2.5 x 5mm Phillips Wafer Head, Black
$0.10Choose size
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Devices whose records share a thread with CubeSat internal component mounting to structural panels, closest length match first.
- Dell Latitude 5411 also M2.5 × 5 mm
- Dell Latitude 7330 Rugged Extreme also M2.5 × 5 mm
- Acer Aspire / Swift also M2.5 × 5 mm
- Dell Inspiron 15 3583 also M2.5 × 5 mm
- Acer Extensa 5230 also M2.5 × 5 mm
- Dell Inspiron 15 7572 also M2.5 × 5 mm
- Lenovo ThinkPad S14 also M2.5 × 5 mm
- HP Compaq Presario V3000 also M2.5 × 5 mm
Questions about CubeSat internal component mounting to structural panels screws
- What size screw does CubeSat internal component mounting to structural panels use?
- M2.5 × 5 mm for M2.5 x 5mm Torx recommended for internal component mounting.
- How long are the screws in CubeSat internal component mounting to structural panels?
- The record gives 5 mm. Measure the original from under the head (overall for a countersunk head) to confirm before ordering.
- 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 CubeSat internal component mounting to structural panels?
- The source lists a Torx drive. Standard M2.5 heads otherwise take PH1 (Phillips) or T8 (Torx), or 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 CubeSat internal component mounting to structural panels?
- TechSpareWarehouse (our own store) lists M2.5 x 5mm, which matches the length in the records above.