Dell Latitude 9420 2-in-1 screw size
M1.2 / M1.6 / M2 / M2.5 · 1.8 to 4 mm long
If you are replacing a screw on Dell Latitude 9420 2-in-1, the thread is M1.2, M1.6, M2 and M2.5 in lengths from 1.8 to 4 mm.
There are 13 separate fitment records for it, including I/O board (qty 2) (M1.2), speaker (qty 1) (M1.6) and wireless card (qty 1) (M1.6), plus 10 more in the table below.
13 of the 13 records are marked confirmed, drawn from 1 source (dell.com).
M1.2 means a 1.2 mm nominal diameter with a 0.25 mm thread pitch. Imperial look-alike: #0-80 UNF (1.52 mm) is the closest imperial screw, but it is bigger — not a substitute.
Dell Latitude 9420 2-in-1 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 |
|---|---|---|---|---|---|---|
| M1.2 | 2.5 mm | 0.25 mm | not stated | not stated | I/O board (qty 2) | Confirmed |
| M1.6 | 1.8 mm | 0.35 mm | not stated | not stated | Speaker (qty 1) | Confirmed |
| M1.6 | 1.8 mm | 0.35 mm | not stated | not stated | Wireless card (qty 1) | Confirmed |
| M1.6 | 2.5 mm | 0.35 mm | not stated | not stated | Fan (qty 2) | Confirmed |
| M1.6 | 2.5 mm | 0.35 mm | not stated | not stated | Power button (qty 3) | Confirmed |
| M1.6 | 2.5 mm | 0.35 mm | not stated | not stated | SSD (qty 1) | Confirmed |
| M1.6 | 2.5 mm | 0.35 mm | not stated | not stated | System board (qty 4) | Confirmed |
| M1.6 | 3 mm | 0.35 mm | not stated | not stated | Battery (qty 1) | Confirmed |
| M1.6 | 3 mm | 0.35 mm | not stated | not stated | Wireless card (qty 4) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | I/O board (qty 1) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Battery (qty 4) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | System board (qty 3) | Confirmed |
| M2.5 | 3 mm | 0.45 mm | not stated | not stated | Display (qty 6) | Confirmed |
Fitment records and sources
I/O board (qty 2)
pitch 0.25 mm · tap 0.95 mm · clearance 1.4 mm · PH000 / JIS 00 / Torx T1–T2
Speaker (qty 1)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Wireless card (qty 1)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Fan (qty 2)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Power button (qty 3)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
SSD (qty 1)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
System board (qty 4)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Battery (qty 1)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Wireless card (qty 4)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
I/O board (qty 1)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Battery (qty 4)
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
Display (qty 6)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
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 M1.2 screw measures about 1.2 mm with calipers (usually a hair under). This device also uses M1.6 / M2 / M2.5, so measure each screw rather than assuming they match.
- Pitch: 0.25 mm from one thread crest to the next (40 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 1.8–4 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source does not name the drive. Standard M1.2 heads take PH000 / JIS 00 for Phillips and T1–T2 for Torx; 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 M1.2 is about 5-8 N·cm into metal threads and 3-5 N·cm into plastic bosses; snug it up and stop.
Common mix-ups with M1.2 / M1.6 / M2 / M2.5
- Framework lists both M1.2 x 3.0 silver and M1.6 x 3.0 black expansion-card screws; they look identical in the tray but are not interchangeable.
- M1.6 is the most common laptop-internal micro screw after M2 — Dell XPS keyboards specifically call out M1.6 x 1.5mm, and generic M2 substitutes strip the bracket.
- 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.
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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M1.6 x 3mm Screws Compatible with Dell XPS 13 9340 Keyboard 10-Pack Black
$4.99 -
M1.6 x 3mm Screws for Dell XPS 13 9340 System Board Replacement 10-Pack Black
$4.99
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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
$4.99
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25x M2.5 x 3mm Phillips Screws for Acer Nitro 5 SSD M.2 WiFi Card
$5.99 -
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
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Dell Latitude 5530 Replacement Screws Sold Individually – M2 x 3mm, M2 x 4mm, 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 Latitude 9420 2-in-1, closest length match first.
- HP Pavilion ze4900 also M2 × 4 mm
- Dell XPS 13 9340 also M1.6 × 2.5 mm
- Acer TravelMate 8531 also M2 × 4 mm
- Toshiba Tecra 9000 also M2 × 4 mm
- HP Compaq 615 also M2 × 4 mm
- HP Compaq Presario C700 also M2 × 4 mm
- HP 620 also M2.5 × 3 mm
- Dell Pro Max 16 MC16250 also M1.6 × 3 mm
Questions about Dell Latitude 9420 2-in-1 screws
- What size screw does Dell Latitude 9420 2-in-1 use?
- M1.2 × 2.5 mm for I/O board (qty 2); M1.6 × 1.8 mm for speaker (qty 1); M1.6 × 1.8 mm for wireless card (qty 1); M1.6 × 2.5 mm for fan (qty 2); M1.6 × 2.5 mm for power button (qty 3); M1.6 × 2.5 mm for SSD (qty 1); M1.6 × 2.5 mm for system board (qty 4); M1.6 × 3 mm for battery (qty 1); M1.6 × 3 mm for wireless card (qty 4); M2 × 4 mm for I/O board (qty 1); M2 × 4 mm for battery (qty 4); M2 × 4 mm for system board (qty 3); M2.5 × 3 mm for display (qty 6).
- How long are the screws in Dell Latitude 9420 2-in-1?
- The records range from 1.8 to 4 mm depending on the position, so match each screw to its own hole.
- What is the thread pitch of an M1.2 screw?
- 0.25 mm (coarse), which is the standard pitch for M1.2 machine screws. The tap drill is 0.95 mm and the normal clearance hole is 1.4 mm.
- What screwdriver do I need for Dell Latitude 9420 2-in-1?
- The sources do not name the drive. For M1.2, Phillips heads normally take PH000 / JIS 00 and Torx heads T1–T2.
- Can I use an imperial screw instead of M1.2?
- No. Imperial look-alike: #0-80 UNF (1.52 mm) is the closest imperial screw, but it is bigger — not a substitute. Use a true M1.2 screw so it does not cross-thread or strip the hole.
- Where can I buy replacement screws for Dell Latitude 9420 2-in-1?
- TechSpareWarehouse (our own store) lists M1.6 x 3mm, M2 x 4mm and M2.5 x 3mm, which match lengths in the records above.