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Acer TravelMate 7730A screw size

M2 / M2.5 / M3 · 3 to 8 mm long

Acer TravelMate 7730A takes M2, M2.5 and M3 metric screws in lengths from 3 to 8 mm.

There are 38 separate fitment records for it, including coin-cell battery (qty 2, silver) (M2), display (qty 4, silver) (M2) and hard drive (qty 2, silver) (M2), plus 35 more in the table below.

38 of the 38 records are marked confirmed, drawn from 1 source (tim.id.au).

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.

Acer TravelMate 7730A 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 statednot statedCoin-cell battery (qty 2, silver)Confirmed
M23 mm0.4 mmnot statednot statedDisplay (qty 4, silver)Confirmed
M23 mm0.4 mmnot statednot statedHard drive (qty 2, silver)Confirmed
M23 mm0.4 mmnot statednot statedHeat sink (qty 2, black)black finishConfirmed
M23 mm0.4 mmnot statednot statedSystem board (qty 2, black)black finishConfirmed
M23 mm0.4 mmnot statednot statedUnspecified (qty 2, silver,black)black finishConfirmed
M2.54 mm0.45 mmnot statednot statedCard reader (qty 4, black)black finishConfirmed
M2.54 mm0.45 mmnot statednot statedPalm rest (qty 4, black)black finishConfirmed
M2.54 mm0.45 mmnot statednot statedPower button (qty 3, black)black finishConfirmed
M2.54 mm0.45 mmnot statednot statedSpeaker (qty 4, black)black finishConfirmed
M2.54 mm0.45 mmnot statednot statedTouchpad (qty 4, black)black finishConfirmed
M2.54 mm0.45 mmnot statednot statedUnspecified (qty 4, black)black finishConfirmed
M2.54 mm0.45 mmnot statednot statedWireless card (qty 4, black)black finishConfirmed
M2.55 mm0.45 mmnot statednot statedCard reader (qty 2, black)black finishConfirmed
M2.55 mm0.45 mmnot statednot statedDisplay (qty 8, black)black finishConfirmed
M2.55 mm0.45 mmnot statednot statedHeat sink (qty 2, black)black finishConfirmed
M2.55 mm0.45 mmnot statednot statedKeyboard (qty 2, black)black finishConfirmed
M2.55 mm0.45 mmnot statednot statedPalm rest (qty 2, black)black finishConfirmed
M2.55 mm0.45 mmnot statednot statedPower button (qty 2, black)black finishConfirmed
M2.55 mm0.45 mmnot statednot statedSpeaker (qty 2, black)black finishConfirmed
M2.55 mm0.45 mmnot statednot statedSystem board (qty 2, black)black finishConfirmed
M2.55 mm0.45 mmnot statednot statedTouchpad (qty 2, black)black finishConfirmed
M2.55 mm0.45 mmnot statednot statedUnspecified (qty 8, black)black finishConfirmed
M2.55 mm0.45 mmnot statednot statedWireless card (qty 2, black)black finishConfirmed
M2.56.5 mm0.45 mmnot statednot statedCard reader (qty 2, black)black finishConfirmed
M2.56.5 mm0.45 mmnot statednot statedDisplay (qty 4, black)black finishConfirmed
M2.56.5 mm0.45 mmnot statednot statedPalm rest (qty 16, black)black finishConfirmed
M2.56.5 mm0.45 mmnot statednot statedSpeaker (qty 2, black)black finishConfirmed
M2.56.5 mm0.45 mmnot statednot statedTouchpad (qty 2, black)black finishConfirmed
M2.56.5 mm0.45 mmnot statednot statedUnspecified (qty 4, black)black finishConfirmed
M2.56.5 mm0.45 mmnot statednot statedWireless card (qty 2, black)black finishConfirmed
M2.58 mm0.45 mmnot statednot statedCard reader (qty 1, black)black finishConfirmed
M2.58 mm0.45 mmnot statednot statedPalm rest (qty 1, black)black finishConfirmed
M2.58 mm0.45 mmnot statednot statedSpeaker (qty 1, black)black finishConfirmed
M2.58 mm0.45 mmnot statednot statedTouchpad (qty 1, black)black finishConfirmed
M2.58 mm0.45 mmnot statednot statedUnspecified (qty 4, black)black finishConfirmed
M2.58 mm0.45 mmnot statednot statedWireless card (qty 4, black)black finishConfirmed
M33.5 mm0.5 mmnot statednot statedHard drive (qty 4, silver)Confirmed

Fitment records and sources

M23 mmconfirmed

Coin-cell battery (qty 2, silver)

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

Source
M23 mmconfirmed

Display (qty 4, silver)

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

Source
M23 mmconfirmed

Hard drive (qty 2, silver)

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

Source
M23 mmconfirmed

Heat sink (qty 2, black)

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

Source
M23 mmconfirmed

System board (qty 2, black)

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

Source
M23 mmconfirmed

Unspecified (qty 2, silver,black)

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

Source
M2.54 mmconfirmed

Card reader (qty 4, black)

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

Source
M2.54 mmconfirmed

Palm rest (qty 4, black)

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

Source
M2.54 mmconfirmed

Power button (qty 3, black)

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

Source
M2.54 mmconfirmed

Speaker (qty 4, black)

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

Source
M2.54 mmconfirmed

Touchpad (qty 4, black)

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

Source
M2.54 mmconfirmed

Unspecified (qty 4, black)

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

Source
M2.54 mmconfirmed

Wireless card (qty 4, black)

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

Source
M2.55 mmconfirmed

Card reader (qty 2, black)

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

Source
M2.55 mmconfirmed

Display (qty 8, black)

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

Source
M2.55 mmconfirmed

Heat sink (qty 2, black)

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

Source
M2.55 mmconfirmed

Keyboard (qty 2, black)

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

Source
M2.55 mmconfirmed

Palm rest (qty 2, black)

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

Source
M2.55 mmconfirmed

Power button (qty 2, black)

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

Source
M2.55 mmconfirmed

Speaker (qty 2, black)

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

Source
M2.55 mmconfirmed

System board (qty 2, black)

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

Source
M2.55 mmconfirmed

Touchpad (qty 2, black)

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

Source
M2.55 mmconfirmed

Unspecified (qty 8, black)

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

Source
M2.55 mmconfirmed

Wireless card (qty 2, black)

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

Source
M2.56.5 mmconfirmed

Card reader (qty 2, black)

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

Source
M2.56.5 mmconfirmed

Display (qty 4, black)

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

Source
M2.56.5 mmconfirmed

Palm rest (qty 16, black)

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

Source
M2.56.5 mmconfirmed

Speaker (qty 2, black)

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

Source
M2.56.5 mmconfirmed

Touchpad (qty 2, black)

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

Source
M2.56.5 mmconfirmed

Unspecified (qty 4, black)

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

Source
M2.56.5 mmconfirmed

Wireless card (qty 2, black)

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

Source
M2.58 mmconfirmed

Card reader (qty 1, black)

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

Source
M2.58 mmconfirmed

Palm rest (qty 1, black)

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

Source
M2.58 mmconfirmed

Speaker (qty 1, black)

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

Source
M2.58 mmconfirmed

Touchpad (qty 1, black)

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

Source
M2.58 mmconfirmed

Unspecified (qty 4, black)

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

Source
M2.58 mmconfirmed

Wireless card (qty 4, black)

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

Source
M33.5 mmconfirmed

Hard drive (qty 4, silver)

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

Source

How to check the screw before you buy

  1. 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.
  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 3–8 mm, which means different positions take different lengths — match each hole to its own screw.
  6. Driver: the source does not name the drive. Standard M2 heads take PH0 for Phillips and T6 for Torx, and a 1.5 mm hex key for socket heads; a bit that fits loosely will cam out and strip the head.
  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

  • The standard M.2 SSD screw is M2 x 3mm, but some laptops and handhelds use non-standard lengths or head shapes.
  • M2.5 pitch is 0.45mm vs M3's 0.5mm and M2's 0.4mm — forcing the wrong one strips plastic bosses instantly.
  • Suunto dive computer service manuals reference strap pins and battery compartment springs but do not explicitly cite a metric screw thread size in the sections reviewed; do not infer M2/M2.5 fitment for Suunto dive computer straps without direct confirmation.

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 Acer TravelMate 7730A, closest length match first.

Questions about Acer TravelMate 7730A screws

What size screw does Acer TravelMate 7730A use?
M2 × 3 mm for coin-cell battery (qty 2, silver); M2 × 3 mm for display (qty 4, silver); M2 × 3 mm for hard drive (qty 2, silver); M2 × 3 mm for heat sink (qty 2, black); M2 × 3 mm for system board (qty 2, black); M2 × 3 mm for unspecified (qty 2, silver,black); M2.5 × 4 mm for card reader (qty 4, black); M2.5 × 4 mm for palm rest (qty 4, black); M2.5 × 4 mm for power button (qty 3, black); M2.5 × 4 mm for speaker (qty 4, black); M2.5 × 4 mm for touchpad (qty 4, black); M2.5 × 4 mm for unspecified (qty 4, black); M2.5 × 4 mm for wireless card (qty 4, black); M2.5 × 5 mm for card reader (qty 2, black); M2.5 × 5 mm for display (qty 8, black); M2.5 × 5 mm for heat sink (qty 2, black); M2.5 × 5 m.
How long are the screws in Acer TravelMate 7730A?
The records range from 3 to 8 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 Acer TravelMate 7730A?
The sources do not name the drive. For M2, Phillips heads normally take PH0 and Torx heads T6; socket heads take 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 Acer TravelMate 7730A?
TechSpareWarehouse (our own store) lists M2 x 3mm, M2.5 x 4mm and M2.5 x 5mm, which match lengths in the records above.

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