Dell Inspiron 4000 screw size
M2 / M2.5 / M3 · 3 to 12 mm long
If you are replacing a screw on Dell Inspiron 4000, the thread is M2, M2.5 and M3 in lengths from 3 to 12 mm.
There are 14 separate fitment records for it, including base cover (qty 2) (M2), bracket (qty 2) (M2) and display (qty 5) (M2), plus 11 more in the table below.
14 of the 14 records are marked confirmed, drawn from 1 source (dl.dell.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.
Dell Inspiron 4000 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 | not stated | not stated | Base cover (qty 2) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Bracket (qty 2) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Display (qty 5) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Heat sink (qty 1) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Palm rest (qty 5) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Display (qty 5, black)black finish | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | System board (qty 3) | Confirmed |
| M2.5 | 12 mm | 0.45 mm | not stated | not stated | Keyboard (qty 5) | Confirmed |
| M2.5 | 12 mm | 0.45 mm | not stated | not stated | Palm rest (qty 3) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Base cover (qty 9) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Display (qty 5) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Heat sink (qty 3) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | System board (qty 10, white) | Confirmed |
| M3 | 5 mm | 0.5 mm | not stated | not stated | Hard drive (qty 1) | Confirmed |
Fitment records and sources
Base cover (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Bracket (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 5)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Heat sink (qty 1)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Palm rest (qty 5)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 5, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (qty 3)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Keyboard (qty 5)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 3)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Base cover (qty 9)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 5)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Heat sink (qty 3)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
System board (qty 10, white)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hard drive (qty 1)
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: measure from under the head to the tip for pan, button, wafer and cap heads; countersunk (flat) heads are measured overall.
- The records span 3–12 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
- The standard M.2 SSD screw is M2 x 3mm, but some laptops and handhelds use non-standard lengths or head shapes.
- Dell/HP/Lenovo manuals often list screws only by torque or head shape, so community teardowns are needed for diameter.
- 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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M2 x 4mm Phillips Wafer Head Machine Screws Black 50-Pack Laptop SSD Repair
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M2 x 4mm Screws for Dell Latitude 5530 SSD Type-C Bracket 10-Pack Black
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M2.5 x 12mm Phillips Wafer Head Screw for Turntable Cartridge Headshell Mount - Pack of 50 Black
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M2.5 x 12mm Phillips Wafer Head Screw for Laptop Bottom Cover Replacement - Single Replacement Black
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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
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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 Dell Inspiron 4000, closest length match first.
- HP Compaq tc4200 also M2 × 4 mm
- Dell Pro 14 Premium PA14250 also M2.5 × 5 mm
- Lenovo ThinkPad X13 2-in-1 Gen 5 also M2.5 × 5 mm
- HP Pavilion 14 14-ec1000 (ids 2100371663 also M2 × 3 mm
- Lenovo IdeaPad S500 Touch also M2 × 3 mm
- Dell Inspiron 15 3582 also M2 × 3 mm
- HP EliteBook 740 G1 also M2 × 3 mm
- Lenovo ThinkPad P14s Gen 4 also M2 × 3 mm
Questions about Dell Inspiron 4000 screws
- What size screw does Dell Inspiron 4000 use?
- M2 × 3 mm for base cover (qty 2); M2 × 3 mm for bracket (qty 2); M2 × 3 mm for display (qty 5); M2 × 3 mm for heat sink (qty 1); M2 × 3 mm for palm rest (qty 5); M2 × 4 mm for display (qty 5, black); M2 × 4 mm for system board (qty 3); M2.5 × 12 mm for keyboard (qty 5); M2.5 × 12 mm for palm rest (qty 3); M2.5 × 5 mm for base cover (qty 9); M2.5 × 5 mm for display (qty 5); M2.5 × 5 mm for heat sink (qty 3); M2.5 × 5 mm for system board (qty 10, white); M3 × 5 mm for hard drive (qty 1).
- How long are the screws in Dell Inspiron 4000?
- The records range from 3 to 12 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 Dell Inspiron 4000?
- 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 Dell Inspiron 4000?
- TechSpareWarehouse (our own store) lists M2 x 3mm, M2 x 4mm and M2.5 x 12mm, which match lengths in the records above.