Dell Inspiron 1420 screw size
M2 / M2.5 · 3 to 5 mm long
Dell Inspiron 1420 takes M2 and M2.5 metric screws in lengths from 3 to 5 mm.
There are 7 separate fitment records for it, including camera (qty 2) (M2), display (qty 6) (M2) and display (qty 6) (M2.5), plus 4 more in the table below.
7 of the 7 records are marked confirmed, drawn from 1 source (dl.dell.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.
Dell Inspiron 1420 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 | Camera (qty 2) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Display (qty 6) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Display (qty 6) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Display bezel (qty 6) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Fan (qty 3) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Palm rest (qty 3) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Speaker (qty 2) | Confirmed |
Fitment records and sources
Camera (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 6)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 6)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display bezel (qty 6)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Fan (qty 3)
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
Speaker (qty 2)
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 3–5 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.
- M2 (2.00mm, 0.4mm pitch) is NOT the same as #2-56 UNC (2.18mm) — close enough to cross-thread and strip if forced.
- Dell/HP/Lenovo manuals often list screws only by torque or head shape, so community teardowns are needed for diameter.
- M2.5 and M3 look the same to the naked eye — you need calipers on the shank to tell them apart.
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 3mm Screws for Dell XPS 13 9340 Base Cover SSD Shield 10-Pack Black
$4.99 -
10x M2 x 3mm Phillips Screws for Lenovo ThinkPad X131e Chromebook WiFi SSD
$4.99
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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
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Dell Inspiron 15 3520 Replacement Screws Sold Individually – M2 x 3mm, M2 x 5mm, M2.5 x 5mm, M3 x 3mm Phillips Wafer Head, Black
$0.10Choose size
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Dell Latitude 5430 Replacement Screws Sold Individually – M2 x 2.5mm, M2 x 3mm, M2 x 5mm, M2.5 x 5mm Phillips Wafer Head, Black
$0.10Choose size
More in Laptops & PCs
The same screw also fits
Devices whose records share a thread with Dell Inspiron 1420, closest length match first.
- Lenovo ThinkPad T14s Gen 7 also M2 × 3 mm
- HP ENVY x360 m6-w0xx also M2 × 3 mm
- Lenovo ThinkPad P16v Gen 3 also M2 × 3 mm
- Lenovo ThinkPad Yoga 11e Chromebook 4th Gen also M2 × 3 mm
- Lenovo X1YOGA also M2 × 3 mm
- Lenovo ThinkPad E570c also M2 × 3 mm
- Lenovo ThinkPad E16 Gen 4 also M2.5 × 5 mm
- Lenovo ideapad 320H-17ISK also M2 × 3 mm
Questions about Dell Inspiron 1420 screws
- What size screw does Dell Inspiron 1420 use?
- M2 × 3 mm for camera (qty 2); M2 × 3 mm for display (qty 6); M2.5 × 5 mm for display (qty 6); M2.5 × 5 mm for display bezel (qty 6); M2.5 × 5 mm for fan (qty 3); M2.5 × 5 mm for palm rest (qty 3); M2.5 × 5 mm for speaker (qty 2).
- How long are the screws in Dell Inspiron 1420?
- 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 Dell Inspiron 1420?
- 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 1420?
- TechSpareWarehouse (our own store) lists M2 x 3mm and M2.5 x 5mm, which match lengths in the records above.