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HP ProBook 470 G4 screw size

M2 / M2.5 / M3 · 2.5 to 7 mm long

The screws used on HP ProBook 470 G4 are M2, M2.5 and M3 in lengths from 2.5 to 7 mm.

There are 19 separate fitment records for it, including display (qty 4, Phillips) (M2), display bezel (qty 2, Phillips) (M2) and hard drive (qty 2, 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 (h10032.www1.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 470 G4 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
M23 mm0.4 mmnot statedPhillipsDisplay (qty 4, Phillips)Confirmed
M23 mm0.4 mmnot statedPhillipsDisplay bezel (qty 2, Phillips)Confirmed
M23 mm0.4 mmnot statedPhillipsHard drive (qty 2, Phillips)Confirmed
M23 mm0.4 mmnot statedPhillipsHinge (qty 2, Phillips)Confirmed
M23 mm0.4 mmnot statedPhillipsPalm rest (qty 4, Phillips)Confirmed
M23 mm0.4 mmnot statedPhillipsPower button (qty 1, Phillips)Confirmed
M23 mm0.4 mmnot statedPhillipsSpeaker (qty 2, Phillips)Confirmed
M23 mm0.4 mmnot statedPhillipsUnspecified (qty 1, Phillips)Confirmed
M24 mm0.4 mmnot statedPhillipsSSD (qty 1, Phillips)Confirmed
M24 mm0.4 mmnot statedPhillipsWireless card (qty 1, Phillips)Confirmed
M2.52.5 mm0.45 mmnot statedPhillipsHinge (qty 4, Phillips)Confirmed
M2.53 mm0.45 mmnot statedPhillipsOptical drive (qty 2, Phillips)Confirmed
M2.53 mm0.45 mmnot statedPhillipsTouchpad (qty 4, Phillips)Confirmed
M2.56 mm0.45 mmnot statedPhillipsI/O board (qty 1, Phillips)Confirmed
M2.57 mm0.45 mmnot statedPhillipsFan (qty 1, Phillips)Confirmed
M2.57 mm0.45 mmnot statedPhillipsHinge (qty 5, Phillips)Confirmed
M2.57 mm0.45 mmnot statedPhillipsKeyboard (qty 2, Phillips)Confirmed
M2.57 mm0.45 mmnot statedPhillipsSystem board (qty 3, Phillips)Confirmed
M33 mm0.5 mmnot statedPhillipsHard drive (qty 4, Phillips)Confirmed

Fitment records and sources

M23 mmconfirmed

Display (qty 4, Phillips)

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

M23 mmconfirmed

Display bezel (qty 2, Phillips)

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

M23 mmconfirmed

Hard drive (qty 2, Phillips)

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

M23 mmconfirmed

Hinge (qty 2, Phillips)

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

M23 mmconfirmed

Palm rest (qty 4, Phillips)

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

M23 mmconfirmed

Power button (qty 1, Phillips)

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

M23 mmconfirmed

Speaker (qty 2, Phillips)

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

M23 mmconfirmed

Unspecified (qty 1, Phillips)

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

M24 mmconfirmed

SSD (qty 1, Phillips)

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

M24 mmconfirmed

Wireless card (qty 1, Phillips)

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

M2.52.5 mmconfirmed

Hinge (qty 4, Phillips)

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

M2.53 mmconfirmed

Optical drive (qty 2, Phillips)

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

M2.53 mmconfirmed

Touchpad (qty 4, Phillips)

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

M2.56 mmconfirmed

I/O board (qty 1, Phillips)

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

M2.57 mmconfirmed

Fan (qty 1, Phillips)

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

M2.57 mmconfirmed

Hinge (qty 5, Phillips)

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

M2.57 mmconfirmed

Keyboard (qty 2, Phillips)

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

M2.57 mmconfirmed

System board (qty 3, Phillips)

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

M33 mmconfirmed

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

  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 2.5–7 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.
  • LED strip clips strip easily — M3x12 into thin plastic should be hand-driven, never with a power driver.

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.

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The same screw also fits

Devices whose records share a thread with HP ProBook 470 G4, closest length match first.

Questions about HP ProBook 470 G4 screws

What size screw does HP ProBook 470 G4 use?
M2 × 3 mm for display (qty 4, Phillips); M2 × 3 mm for display bezel (qty 2, Phillips); M2 × 3 mm for hard drive (qty 2, Phillips); M2 × 3 mm for hinge (qty 2, Phillips); M2 × 3 mm for palm rest (qty 4, Phillips); M2 × 3 mm for power button (qty 1, Phillips); M2 × 3 mm for speaker (qty 2, Phillips); M2 × 3 mm for unspecified (qty 1, Phillips); M2 × 4 mm for SSD (qty 1, Phillips); M2 × 4 mm for wireless card (qty 1, Phillips); M2.5 × 2.5 mm for hinge (qty 4, Phillips); M2.5 × 3 mm for optical drive (qty 2, Phillips); M2.5 × 3 mm for touchpad (qty 4, Phillips); M2.5 × 6 mm for I/O board (qty 1, Phillips); M2.5 × 7 mm for fan (qty 1, Phillips); M2.5 × 7 mm for hinge (qty 5, Phillips); M2.5 × 7 .
How long are the screws in HP ProBook 470 G4?
The records range from 2.5 to 7 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 470 G4?
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 470 G4?
TechSpareWarehouse (our own store) lists M2 x 3mm, M2 x 4mm and M2.5 x 3mm, which match lengths in the records above.