Lenovo ThinkPad Edge E445 screw size
M2 / M2.5 / M3 · 2 to 8 mm long
Our records put Lenovo ThinkPad Edge E445 on M2, M2.5 and M3 screws in lengths from 2 to 8 mm.
There are 19 separate fitment records for it, including speaker (qty 3, wafer, black) (M2), I/O board (qty 1, wafer, black) (M2) and camera (qty 1, wafer, black) (M2), plus 16 more in the table below.
Head and drive, as the sources state them: wafer (thin) head.
19 of the 19 records are marked confirmed, drawn from 1 source (download.lenovo.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.
Lenovo ThinkPad Edge E445 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 mm | 0.4 mm | Wafer (thin) head | not stated | Speaker (qty 3, wafer, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | I/O board (qty 1, wafer, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | Camera (qty 1, wafer, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | Hard drive (qty 2, wafer, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | Hinge (qty 6, wafer, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | Optical drive (qty 1, wafer, black)black finish | 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 | Power button (qty 1, 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 | 4.5 mm | 0.4 mm | Wafer (thin) head | not stated | Display bezel (qty 4, wafer, silver) | Confirmed |
| M2 | 5 mm | 0.4 mm | Wafer (thin) head | not stated | I/O board (qty 1, wafer, silver) | Confirmed |
| M2 | 5 mm | 0.4 mm | Wafer (thin) head | not stated | Palm rest (qty 1, wafer, silver) | Confirmed |
| M2 | 5 mm | 0.4 mm | Wafer (thin) head | not stated | System board (qty 2, wafer, silver) | Confirmed |
| M2 | 8 mm | 0.4 mm | Wafer (thin) head | not stated | Keyboard (qty 2, wafer, black)black finish | Confirmed |
| M2 | 8 mm | 0.4 mm | Wafer (thin) head | not stated | Palm rest (qty 10, wafer, black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | Wafer (thin) head | not stated | Display (qty 4, wafer, black)black finish | Confirmed |
| M2.5 | 5 mm | 0.45 mm | Wafer (thin) head | not stated | Base cover (qty 5, wafer, black)black finish | Confirmed |
| M2.5 | 5 mm | 0.45 mm | Wafer (thin) head | not stated | Display (qty 5, wafer, black)black finish | Confirmed |
| M3 | 3 mm | 0.5 mm | Wafer (thin) head | not stated | Hard drive (qty 4, wafer, silver) | Confirmed |
Fitment records and sources
Speaker (qty 3, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
I/O board (qty 1, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Camera (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
Hinge (qty 6, 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 4, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Power button (qty 1, 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
Display bezel (qty 4, wafer, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
I/O board (qty 1, wafer, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Palm rest (qty 1, wafer, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (qty 2, wafer, silver)
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
Palm rest (qty 10, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 4, wafer, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Base cover (qty 5, wafer, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 5, wafer, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hard drive (qty 4, wafer, silver)
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
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 / 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 2–8 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.
- Camera and tripod mounting threads themselves are imperial 1/4in-20 or 3/8in-16 — the metric M2-M4 screws in rig kits are only for the accessory hardware, not the tripod mount.
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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More in Laptops & PCs
The same screw also fits
Devices whose records share a thread with Lenovo ThinkPad Edge E445, closest length match first.
- Lenovo M41-80 also M2 × 2 mm
- HP Compaq Presario V2000 also M2 × 5 mm
- Lenovo V720-14 also M2 × 2 mm
- Acer TravelMate 5730 also M2 × 3 mm
- Lenovo ThinkPad Edge E530 also M2 × 2 mm
- Lenovo ideapad 300S-14ISK also M2 × 2 mm
- Lenovo G500s Touch also M2 × 3 mm
- HP ProBook 455 G6 also M2 × 2 mm
Questions about Lenovo ThinkPad Edge E445 screws
- What size screw does Lenovo ThinkPad Edge E445 use?
- M2 × 2 mm for speaker (qty 3, wafer, black); M2 × 3 mm for I/O board (qty 1, wafer, black); M2 × 3 mm for camera (qty 1, wafer, black); M2 × 3 mm for hard drive (qty 2, wafer, black); M2 × 3 mm for hinge (qty 6, wafer, black); M2 × 3 mm for optical drive (qty 1, wafer, black); M2 × 3 mm for palm rest (qty 4, wafer, black); M2 × 3 mm for power button (qty 1, wafer, black); M2 × 3 mm for wireless card (qty 1, wafer, black); M2 × 4.5 mm for display bezel (qty 4, wafer, silver); M2 × 5 mm for I/O board (qty 1, wafer, silver); M2 × 5 mm for palm rest (qty 1, wafer, silver); M2 × 5 mm for system board (qty 2, wafer, silver); M2 × 8 mm for keyboard (qty 2, wafer, black); M2 × 8 mm for palm rest (qt.
- How long are the screws in Lenovo ThinkPad Edge E445?
- The records range from 2 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 Lenovo ThinkPad Edge E445?
- 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 Edge E445?
- TechSpareWarehouse (our own store) lists M2 x 2mm, M2 x 3mm and M2 x 5mm, which match lengths in the records above.