Lenovo ThinkPad E30 screw size
M2 / M2.5 · 3 to 5 mm long
Lenovo ThinkPad E30 takes M2 and M2.5 metric screws in lengths from 3 to 5 mm.
There are 11 separate fitment records for it, including hard drive (qty 1, flat,wafer, black) (M2), hinge (qty 2, flat,wafer, black) (M2) and palm rest (qty 6, flat,wafer, black) (M2), plus 8 more in the table below.
Head and drive, as the sources state them: wafer (thin) head.
11 of the 11 records are marked confirmed, drawn from 1 source (download.lenovo.com).
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.
Lenovo ThinkPad E30 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 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | Hard drive (qty 1, flat,wafer, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | Hinge (qty 2, flat,wafer, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | Palm rest (qty 6, flat,wafer, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | Speaker (qty 4, flat,wafer, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | System board (qty 3, flat,wafer, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | Unspecified (qty 1, flat,wafer, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | Wireless card (qty 2, flat,wafer, black)black finish | Confirmed |
| M2 | 4 mm | 0.4 mm | Wafer (thin) head | not stated | Display bezel (qty 4, flat,wafer, silver) | Confirmed |
| M2 | 5 mm | 0.4 mm | Wafer (thin) head | not stated | Keyboard (qty 2, flat,wafer, black)black finish | Confirmed |
| M2 | 5 mm | 0.4 mm | Wafer (thin) head | not stated | Palm rest (qty 10, flat,wafer, black)black finish | Confirmed |
| M2.5 | 5 mm | 0.45 mm | Wafer (thin) head | not stated | Display (qty 4, flat,wafer, black)black finish | Confirmed |
Fitment records and sources
Hard drive (qty 1, flat,wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hinge (qty 2, flat,wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Palm rest (qty 6, flat,wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Speaker (qty 4, flat,wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (qty 3, flat,wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 1, flat,wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Wireless card (qty 2, flat,wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display bezel (qty 4, flat,wafer, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Keyboard (qty 2, flat,wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Palm rest (qty 10, flat,wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 4, flat,wafer, black)
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: for wafer (thin) head screws, measure from under the head to the tip (countersunk heads are the exception: they are measured overall).
- The records span 3–5 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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10x M2 x 3mm Phillips Screws for Lenovo ThinkPad X131e Chromebook WiFi SSD
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M2 x 4mm Phillips Wafer Head Machine Screws Black 50-Pack Laptop SSD Repair
$4.49 each · min. 2
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M2 x 4mm Screws for Dell Latitude 5530 SSD Type-C Bracket 10-Pack Black
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M2 x 5mm Replacement Bottom Case Screws for Dell Inspiron 3535 Laptop 10-Pack
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M2 x 5mm Phillips Wafer Head Screw for Dell G16 7630 Gaming Laptop Repair - Pack of 100 Black
$7.99 -
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 E30, closest length match first.
- Lenovo ideapad 330H-17IKB also M2 × 3 mm
- Lenovo B40-30 also M2 × 3 mm
- HP Compaq Presario V2400 also M2 × 3 mm
- Lenovo G405s also M2 × 3 mm
- Lenovo LOQ 15IRH8 also M2 × 3 mm
- Lenovo ThinkPad T510 also M2 × 3 mm
- HP EliteBook 720 G1 also M2 × 3 mm
- Dell Latitude 5491 also M2 × 3 mm
Questions about Lenovo ThinkPad E30 screws
- What size screw does Lenovo ThinkPad E30 use?
- M2 × 3 mm for hard drive (qty 1, flat,wafer, black); M2 × 3 mm for hinge (qty 2, flat,wafer, black); M2 × 3 mm for palm rest (qty 6, flat,wafer, black); M2 × 3 mm for speaker (qty 4, flat,wafer, black); M2 × 3 mm for system board (qty 3, flat,wafer, black); M2 × 3 mm for unspecified (qty 1, flat,wafer, black); M2 × 3 mm for wireless card (qty 2, flat,wafer, black); M2 × 4 mm for display bezel (qty 4, flat,wafer, silver); M2 × 5 mm for keyboard (qty 2, flat,wafer, black); M2 × 5 mm for palm rest (qty 10, flat,wafer, black); M2.5 × 5 mm for display (qty 4, flat,wafer, black).
- How long are the screws in Lenovo ThinkPad E30?
- The records range from 3 to 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 E30?
- 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 E30?
- TechSpareWarehouse (our own store) lists M2 x 3mm, M2 x 4mm and M2 x 5mm, which match lengths in the records above.




