• Free shipping over $25

  • Free help & advice

  • Open 7 days a week

HP Compaq Presario C300 screw size

M2 / M2.5 / M3 · 4 to 13 mm long

If you are replacing a screw on HP Compaq Presario C300, the thread is M2, M2.5 and M3 in lengths from 4 to 13 mm.

There are 23 separate fitment records for it, including fan (Phillips) (M2), hinge (qty 4, Phillips) (M2) and optical drive (qty 2, Phillips) (M2), plus 20 more in the table below.

Head and drive, as the sources state them: Phillips drive.

23 of the 23 records are marked confirmed, drawn from 1 source (tim.id.au).

M2 means a 2 mm nominal diameter with a 0.4 mm thread pitch. Imperial look-alike: #2-56 UNC (2.18 mm) is close but not interchangeable.

HP Compaq Presario C300 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.

ThreadLengthPitchHeadDriveWhere it goesStatus
M24 mm0.4 mmnot statedPhillipsFan (Phillips)Confirmed
M24 mm0.4 mmnot statedPhillipsHinge (qty 4, Phillips)Confirmed
M24 mm0.4 mmnot statedPhillipsOptical drive (qty 2, Phillips)Confirmed
M24 mm0.4 mmnot statedPhillipsWireless card (qty 2, Phillips)Confirmed
M2.513 mm0.45 mmnot statedPhillipsDisplay (qty 2, Phillips)Confirmed
M2.513 mm0.45 mmnot statedPhillipsUnspecified (qty 11, Phillips)Confirmed
M2.54 mm0.45 mmnot statedPhillipsTouchpad (qty 4, silver, Phillips)Confirmed
M2.55 mm0.45 mmnot statedPhillipsLED board (qty 2, Phillips)Confirmed
M2.55 mm0.45 mmnot statedPhillipsDisplay (qty 4, Phillips)Confirmed
M2.55 mm0.45 mmnot statedPhillipsHard drive (qty 2, captive, Phillips)captiveConfirmed
M2.55 mm0.45 mmnot statedPhillipsHinge (qty 2, Phillips)Confirmed
M2.55 mm0.45 mmnot statedPhillipsKeyboard (qty 4, Phillips)Confirmed
M2.55 mm0.45 mmnot statedPhillipsMemory (captive, Phillips)captiveConfirmed
M2.55 mm0.45 mmnot statedPhillipsOptical drive (qty 2, Phillips)Confirmed
M2.55 mm0.45 mmnot statedPhillipsSystem board (qty 2, Phillips)Confirmed
M2.55 mm0.45 mmnot statedPhillipsTouchpad (qty 4, Phillips)Confirmed
M2.55 mm0.45 mmnot statedPhillipsUnspecified (qty 2, Phillips)Confirmed
M2.55 mm0.45 mmnot statedPhillipsWireless card (Phillips)Confirmed
M2.57 mm0.45 mmnot statedPhillipsDisplay bezel (qty 6, Phillips)Confirmed
M2.57 mm0.45 mmnot statedPhillipsHeat sink (qty 4, Phillips)Confirmed
M2.59 mm0.45 mmnot statedPhillipsDisplay (qty 4, Phillips)Confirmed
M34 mm0.5 mmnot statedPhillipsHard drive (qty 4, Phillips)Confirmed
M36 mm0.5 mmnot statedPhillipsFan (qty 2, Phillips)Confirmed

Fitment records and sources

M24 mmconfirmed

Fan (Phillips)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M24 mmconfirmed

Hinge (qty 4, Phillips)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M24 mmconfirmed

Optical drive (qty 2, Phillips)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M24 mmconfirmed

Wireless card (qty 2, Phillips)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M2.513 mmconfirmed

Display (qty 2, Phillips)

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

M2.513 mmconfirmed

Unspecified (qty 11, Phillips)

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

M2.54 mmconfirmed

Touchpad (qty 4, silver, Phillips)

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

M2.55 mmconfirmed

LED board (qty 2, Phillips)

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

M2.55 mmconfirmed

Display (qty 4, Phillips)

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

M2.55 mmconfirmed

Hard drive (qty 2, captive, Phillips)

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

M2.55 mmconfirmed

Hinge (qty 2, Phillips)

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

M2.55 mmconfirmed

Keyboard (qty 4, Phillips)

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

M2.55 mmconfirmed

Memory (captive, Phillips)

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

M2.55 mmconfirmed

Optical drive (qty 2, Phillips)

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

M2.55 mmconfirmed

System board (qty 2, Phillips)

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

M2.55 mmconfirmed

Touchpad (qty 4, Phillips)

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

M2.55 mmconfirmed

Unspecified (qty 2, Phillips)

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

M2.55 mmconfirmed

Wireless card (Phillips)

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

M2.57 mmconfirmed

Display bezel (qty 6, Phillips)

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

M2.57 mmconfirmed

Heat sink (qty 4, Phillips)

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

M2.59 mmconfirmed

Display (qty 4, Phillips)

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

M34 mmconfirmed

Hard drive (qty 4, Phillips)

pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10

M36 mmconfirmed

Fan (qty 2, Phillips)

pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10

How to check the screw before you buy

  1. Laptop covers and brackets often mix two or three lengths of the same thread, so lay the screws out in the order they came out (a magnetic mat or a sheet of paper with the hole pattern drawn on it works).
  2. 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.
  3. 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.
  4. Length: measure from under the head to the tip for pan, button, wafer and cap heads; countersunk (flat) heads are measured overall.
  5. The records span 4–13 mm, which means different positions take different lengths — match each hole to its own screw.
  6. 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.
  7. 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

  • 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).
  • M2.5 and M3 look the same to the naked eye — you need calipers on the shank to tell them apart.
  • 3.5in desktop and enterprise hard drives are 6-32 UNC imperial, not M3 - only the 2.5in form factor is metric.

Pitch gauge · Screw size finder · Torque guide

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.

More in Laptops & PCs

Browse all 2799 in Laptops & PCs →

The same screw also fits

Devices whose records share a thread with HP Compaq Presario C300, closest length match first.

Questions about HP Compaq Presario C300 screws

What size screw does HP Compaq Presario C300 use?
M2 × 4 mm for fan (Phillips); M2 × 4 mm for hinge (qty 4, Phillips); M2 × 4 mm for optical drive (qty 2, Phillips); M2 × 4 mm for wireless card (qty 2, Phillips); M2.5 × 13 mm for display (qty 2, Phillips); M2.5 × 13 mm for unspecified (qty 11, Phillips); M2.5 × 4 mm for touchpad (qty 4, silver, Phillips); M2.5 × 5 mm for LED board (qty 2, Phillips); M2.5 × 5 mm for display (qty 4, Phillips); M2.5 × 5 mm for hard drive (qty 2, captive, Phillips); M2.5 × 5 mm for hinge (qty 2, Phillips); M2.5 × 5 mm for keyboard (qty 4, Phillips); M2.5 × 5 mm for memory (captive, Phillips); M2.5 × 5 mm for optical drive (qty 2, Phillips); M2.5 × 5 mm for system board (qty 2, Phillips); M2.5 × 5 mm for touchpa.
How long are the screws in HP Compaq Presario C300?
The records range from 4 to 13 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 Compaq Presario C300?
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 Compaq Presario C300?
TechSpareWarehouse (our own store) lists M2 x 4mm, M2.5 x 4mm and M2.5 x 5mm, which match lengths in the records above.