Lenovo ThinkPad E525 screw size
M2 / M2.5 / M3 · 2.5 to 6 mm long
The screws used on Lenovo ThinkPad E525 are M2, M2.5 and M3 in lengths from 2.5 to 6 mm.
There are 15 separate fitment records for it, including hinge (qty 4, wafer, silver) (M2), palm rest (qty 4, wafer, black) (M2) and wireless card (qty 1, wafer, black) (M2), plus 12 more in the table below.
Head and drive, as the sources state them: wafer (thin) head.
15 of the 15 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 E525 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 | 2.5 mm | 0.4 mm | Wafer (thin) head | not stated | Hinge (qty 4, wafer, silver) | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | Palm rest (qty 4, wafer, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | Wireless card (qty 1, wafer, black)black finish | Confirmed |
| M2 | 6 mm | 0.4 mm | Wafer (thin) head | not stated | I/O board (qty 2, wafer, black)black finish | Confirmed |
| M2 | 6 mm | 0.4 mm | Wafer (thin) head | not stated | DC-in (qty 1, wafer, black)black finish | Confirmed |
| M2 | 6 mm | 0.4 mm | Wafer (thin) head | not stated | Hard drive (qty 2, wafer, black)black finish | Confirmed |
| M2 | 6 mm | 0.4 mm | Wafer (thin) head | not stated | Keyboard (qty 2, wafer, black)black finish | Confirmed |
| M2 | 6 mm | 0.4 mm | Wafer (thin) head | not stated | Optical drive (qty 1, wafer, black)black finish | Confirmed |
| M2 | 6 mm | 0.4 mm | Wafer (thin) head | not stated | Palm rest (qty 10, wafer, black)black finish | Confirmed |
| M2 | 6 mm | 0.4 mm | Wafer (thin) head | not stated | System board (qty 3, wafer, black)black finish | Confirmed |
| M2.5 | 4.5 mm | 0.45 mm | Wafer (thin) head | not stated | Display (qty 2, wafer, silver) | Confirmed |
| M2.5 | 6 mm | 0.45 mm | Wafer (thin) head | not stated | Base cover (qty 2, wafer, black)black finish | Confirmed |
| M2.5 | 6 mm | 0.45 mm | Wafer (thin) head | not stated | Display (qty 2, wafer, black)black finish | Confirmed |
| M2.5 | 6 mm | 0.45 mm | Wafer (thin) head | not stated | Display bezel (qty 4, wafer, black)black finish | Confirmed |
| M3 | 2.8 mm | 0.5 mm | Wafer (thin) head | not stated | Hard drive (qty 4, wafer, black)black finish | Confirmed |
Fitment records and sources
Hinge (qty 4, wafer, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Palm rest (qty 4, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Wireless card (qty 1, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
I/O board (qty 2, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
DC-in (qty 1, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hard drive (qty 2, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Keyboard (qty 2, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Optical drive (qty 1, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Palm rest (qty 10, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (qty 3, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 2, wafer, silver)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Base cover (qty 2, wafer, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 2, wafer, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display bezel (qty 4, wafer, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hard drive (qty 4, wafer, black)
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
How to check the screw before you buy
- 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).
- 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.
- 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 2.5–6 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 / 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).
- Nylon-coated M2.5 screws (ThinkPad Edge) are thread-locking; plain replacements work loose over time.
- 3.5in desktop and enterprise hard drives are 6-32 UNC imperial, not M3 - only the 2.5in form factor is metric.
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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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
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More in Laptops & PCs
The same screw also fits
Devices whose records share a thread with Lenovo ThinkPad E525, closest length match first.
- Lenovo ThinkPad E555 also M2 × 3 mm
- Lenovo IdeaPad U400 also M2 × 2.5 mm
- Lenovo IdeaPad U300s also M2 × 2.5 mm
- HP 2133 Mini-Note PC (2140 page id 3872994) also M2 × 3 mm
- Lenovo ideapad 320H-14ISK also M2 × 3 mm
- Lenovo Y50-70 Touch also M2 × 3 mm
- Dell Inspiron 1200 also M2 × 3 mm
- Dell Inspiron 15 3502 also M2 × 2.5 mm
Questions about Lenovo ThinkPad E525 screws
- What size screw does Lenovo ThinkPad E525 use?
- M2 × 2.5 mm for hinge (qty 4, wafer, silver); M2 × 3 mm for palm rest (qty 4, wafer, black); M2 × 3 mm for wireless card (qty 1, wafer, black); M2 × 6 mm for I/O board (qty 2, wafer, black); M2 × 6 mm for DC-in (qty 1, wafer, black); M2 × 6 mm for hard drive (qty 2, wafer, black); M2 × 6 mm for keyboard (qty 2, wafer, black); M2 × 6 mm for optical drive (qty 1, wafer, black); M2 × 6 mm for palm rest (qty 10, wafer, black); M2 × 6 mm for system board (qty 3, wafer, black); M2.5 × 4.5 mm for display (qty 2, wafer, silver); M2.5 × 6 mm for base cover (qty 2, wafer, black); M2.5 × 6 mm for display (qty 2, wafer, black); M2.5 × 6 mm for display bezel (qty 4, wafer, black); M3 × 2.8 mm for hard dr.
- How long are the screws in Lenovo ThinkPad E525?
- The records range from 2.5 to 6 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 E525?
- 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 E525?
- TechSpareWarehouse (our own store) lists M2 x 2.5mm, M2 x 3mm and M2 x 6mm, which match lengths in the records above.



