Lenovo ThinkPad A30 screw size
M2 / M2.5 · 3.6 to 19.5 mm long
Lenovo ThinkPad A30 takes M2 and M2.5 metric screws in lengths from 3.6 to 19.5 mm.
There are 20 separate fitment records for it, including I/O board (qty 1) (M2), fan (qty 3) (M2) and palm rest (qty 1) (M2), plus 17 more in the table below.
20 of the 20 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.
Lenovo ThinkPad A30 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 | 15 mm | 0.4 mm | not stated | not stated | I/O board (qty 1) | Confirmed |
| M2 | 15 mm | 0.4 mm | not stated | not stated | Fan (qty 3) | Confirmed |
| M2 | 15 mm | 0.4 mm | not stated | not stated | Palm rest (qty 1) | Confirmed |
| M2 | 15 mm | 0.4 mm | not stated | not stated | Unspecified (qty 3) | Confirmed |
| M2 | 3.6 mm | 0.4 mm | not stated | not stated | Unspecified (qty 4) | Confirmed |
| M2 | 5.7 mm | 0.4 mm | not stated | not stated | Unspecified (qty 4) | Confirmed |
| M2 | 9 mm | 0.4 mm | not stated | not stated | I/O board (qty 1) | Confirmed |
| M2.5 | 16 mm | 0.45 mm | not stated | not stated | Keyboard (qty 2) | Confirmed |
| M2.5 | 16 mm | 0.45 mm | not stated | not stated | Palm rest (qty 4) | Confirmed |
| M2.5 | 16 mm | 0.45 mm | not stated | not stated | Unspecified (qty 2) | Confirmed |
| M2.5 | 19.5 mm | 0.45 mm | not stated | not stated | Palm rest (qty 1) | Confirmed |
| M2.5 | 4.8 mm | 0.45 mm | not stated | not stated | Display (qty 4) | Confirmed |
| M2.5 | 4.8 mm | 0.45 mm | not stated | not stated | Display bezel (qty 2) | Confirmed |
| M2.5 | 4.8 mm | 0.45 mm | not stated | not stated | Fan (qty 1) | Confirmed |
| M2.5 | 4.8 mm | 0.45 mm | not stated | not stated | Hinge (qty 2) | Confirmed |
| M2.5 | 4.8 mm | 0.45 mm | not stated | not stated | Palm rest (qty 8) | Confirmed |
| M2.5 | 4.8 mm | 0.45 mm | not stated | not stated | Speaker (qty 2) | Confirmed |
| M2.5 | 4.8 mm | 0.45 mm | not stated | not stated | System board (qty 4, small-head) | Confirmed |
| M2.5 | 4.8 mm | 0.45 mm | not stated | not stated | Unspecified (qty 4) | Confirmed |
| M2.5 | 4.8 mm | 0.45 mm | not stated | not stated | Wireless card (qty 1) | Confirmed |
Fitment records and sources
I/O board (qty 1)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Fan (qty 3)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Palm rest (qty 1)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 3)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 4)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 4)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
I/O board (qty 1)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Keyboard (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 4)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 4)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display bezel (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Fan (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hinge (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 8)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Speaker (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
System board (qty 4, small-head)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 4)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Wireless card (qty 1)
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 screw measures about 2 mm with calipers (usually a hair under). This device also uses M2.5, so measure each screw rather than assuming they match.
- 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.
- 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 3.6–19.5 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 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.
- 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
- The standard M.2 SSD screw is M2 x 3mm, but some laptops and handhelds use non-standard lengths or head shapes.
- 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).
- Dell/HP/Lenovo manuals often list screws only by torque or head shape, so community teardowns are needed for diameter.
- Nylon-coated M2.5 screws (ThinkPad Edge) are thread-locking; plain replacements work loose over time.
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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ASUS ROG Strix G15 G513R Replacement Screws Sold Individually – M1.6 x 3mm, M2 x 2.5mm, M2 x 3mm, M2.5 x 6mm Phillips Wafer Head, Black
$0.10Choose size -
ASUS ROG Strix G17 G713 Replacement Screws Sold Individually – M1.6 x 3mm, M2 x 2.5mm, M2 x 3mm, M2.5 x 6mm Phillips Wafer Head, Black
$0.10Choose size
More in Laptops & PCs
The same screw also fits
Devices whose records share a thread with Lenovo ThinkPad A30, closest length match first.
- Lenovo ThinkPad A31 also M2 × 15 mm
- Lenovo ThinkPad Z61t also M2 × 9 mm
- Lenovo ThinkPad T40p also M2.5 × 4.8 mm
- Lenovo ThinkPad T43/p also M2.5 × 4.8 mm
- HP ProBook 6570b also M2 × 3.6 mm
- Lenovo ThinkPad Z61p also M2 × 9 mm
- Lenovo Tablet X61 also M2 × 9 mm
- Lenovo ThinkPad X60 also M2 × 9 mm
Questions about Lenovo ThinkPad A30 screws
- What size screw does Lenovo ThinkPad A30 use?
- M2 × 15 mm for I/O board (qty 1); M2 × 15 mm for fan (qty 3); M2 × 15 mm for palm rest (qty 1); M2 × 15 mm for unspecified (qty 3); M2 × 3.6 mm for unspecified (qty 4); M2 × 5.7 mm for unspecified (qty 4); M2 × 9 mm for I/O board (qty 1); M2.5 × 16 mm for keyboard (qty 2); M2.5 × 16 mm for palm rest (qty 4); M2.5 × 16 mm for unspecified (qty 2); M2.5 × 19.5 mm for palm rest (qty 1); M2.5 × 4.8 mm for display (qty 4); M2.5 × 4.8 mm for display bezel (qty 2); M2.5 × 4.8 mm for fan (qty 1); M2.5 × 4.8 mm for hinge (qty 2); M2.5 × 4.8 mm for palm rest (qty 8); M2.5 × 4.8 mm for speaker (qty 2); M2.5 × 4.8 mm for system board (qty 4, small-head); M2.5 × 4.8 mm for unspecified (qty 4); M2.5 × 4.8 .
- How long are the screws in Lenovo ThinkPad A30?
- The records range from 3.6 to 19.5 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 Lenovo ThinkPad A30?
- 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 Lenovo ThinkPad A30?
- TechSpareWarehouse (our own store) lists M2.5 x 5mm, which matches the length in the records above.