Dell XPS 16 9640 screw size
M1.4 / M2 / M2.5 · 1.3 to 6 mm long
If you are replacing a screw on Dell XPS 16 9640, the thread is M1.4, M2 and M2.5 in lengths from 1.3 to 6 mm.
There are 12 separate fitment records for it, including display (qty 2) (M1.4), power button (qty 4) (M1.4) and display (qty 2) (M2), plus 9 more in the table below.
Head and drive, as the sources state them: Torx T5 drive.
12 of the 12 records are marked confirmed, drawn from 1 source (dell.com).
An M1.4 screw is 1.4 mm in diameter with a 0.3 mm pitch, tapped with a 1.1 mm drill; imperial look-alike: #0-80 UNF (1.52 mm) — close in diameter, different pitch, do not mix.
Dell XPS 16 9640 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 |
|---|---|---|---|---|---|---|
| M1.4 | 1.3 mm | 0.3 mm | not stated | not stated | Display (qty 2) | Confirmed |
| M1.4 | 1.5 mm | 0.3 mm | not stated | not stated | Power button (qty 4) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Display (qty 2) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | SSD (qty 2) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Wireless card (qty 1) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | Torx T5 | Base cover (qty 8, Torx T5) | Confirmed |
| M2 | 4.5 mm | 0.4 mm | not stated | not stated | Battery (qty 6) | Confirmed |
| M2 | 4.5 mm | 0.4 mm | not stated | not stated | Bracket (qty 3) | Confirmed |
| M2 | 4.5 mm | 0.4 mm | not stated | not stated | Fan (qty 3) | Confirmed |
| M2 | 4.5 mm | 0.4 mm | not stated | not stated | System board (qty 4) | Confirmed |
| M2 | 4.5 mm | 0.4 mm | not stated | not stated | USB-C board (qty 2) | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Hinge (qty 2) | Confirmed |
Fitment records and sources
Display (qty 2)
pitch 0.3 mm · tap 1.1 mm · clearance 1.6 mm · PH000 / PH00 / Torx T2–T3
Power button (qty 4)
pitch 0.3 mm · tap 1.1 mm · clearance 1.6 mm · PH000 / PH00 / Torx T2–T3
Display (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
SSD (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Wireless card (qty 1)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Base cover (qty 8, Torx T5)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Battery (qty 6)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Bracket (qty 3)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Fan (qty 3)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (qty 4)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
USB-C board (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hinge (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
- 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 M1.4 screw measures about 1.4 mm with calipers (usually a hair under). This device also uses M2 / M2.5, so measure each screw rather than assuming they match.
- Pitch: 0.3 mm from one thread crest to the next (33.33 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 1.3–6 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source names a Torx T5 drive. For comparison, standard M1.4 heads take PH000 / PH00 (Phillips) or T2–T3 (Torx), or a 1.3 mm hex key.
- Tightening: no device-specific torque is published in these records. The site's general figure for M1.4 is about 8-12 N·cm into metal threads and 4-7 N·cm into plastic bosses; snug it up and stop.
Common mix-ups with M1.4 / M2 / M2.5
- Dental implant screws (M1.4/M1.6) are proprietary per system — Bredent, NeoBiotech, Nobel and Straumann are not interchangeable even at the same nominal size.
- 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.
-
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
-
M2 x 4mm Phillips Wafer Head Machine Screws Black 50-Pack Laptop SSD Repair
$4.49 each · min. 2
-
M2 x 4mm Screws for Dell Latitude 5530 SSD Type-C Bracket 10-Pack Black
$4.99
-
M2.5 x 6mm Laptop Motherboard Replacement Screws Wafer Head 10-Pack Black
$4.99 -
10x M2.5 x 6mm Phillips Screws for Lenovo ThinkPad X131e Chromebook LCD Hinge
$4.99
-
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
More in Laptops & PCs
The same screw also fits
Devices whose records share a thread with Dell XPS 16 9640, closest length match first.
- Lenovo IdeaPad S940-14IWL also M2 × 3 mm
- Lenovo ThinkPad E460 also M2 × 3 mm
- Lenovo ThinkPad T14 Gen 1 lower case also M2 × 3 mm
- Lenovo ThinkPad E15 Gen 2 also M2 × 3 mm
- Lenovo IdeaPad U300e also M2 × 3 mm
- Acer Aspire 5235 also M2 × 3 mm
- Toshiba Satellite A30 also M2 × 3 mm
- ASUS S62F also M2 × 3 mm
Questions about Dell XPS 16 9640 screws
- What size screw does Dell XPS 16 9640 use?
- M1.4 × 1.3 mm for display (qty 2); M1.4 × 1.5 mm for power button (qty 4); M2 × 3 mm for display (qty 2); M2 × 3 mm for SSD (qty 2); M2 × 3 mm for wireless card (qty 1); M2 × 4 mm for base cover (qty 8, Torx T5); M2 × 4.5 mm for battery (qty 6); M2 × 4.5 mm for bracket (qty 3); M2 × 4.5 mm for fan (qty 3); M2 × 4.5 mm for system board (qty 4); M2 × 4.5 mm for USB-C board (qty 2); M2.5 × 6 mm for hinge (qty 2).
- How long are the screws in Dell XPS 16 9640?
- The records range from 1.3 to 6 mm depending on the position, so match each screw to its own hole.
- What is the thread pitch of an M1.4 screw?
- 0.3 mm (coarse), which is the standard pitch for M1.4 machine screws. The tap drill is 1.1 mm and the normal clearance hole is 1.6 mm.
- What screwdriver do I need for Dell XPS 16 9640?
- The source lists a Torx T5 drive. Standard M1.4 heads otherwise take PH000 / PH00 (Phillips) or T2–T3 (Torx), or a 1.3 mm hex key.
- Can I use an imperial screw instead of M1.4?
- No. Imperial look-alike: #0-80 UNF (1.52 mm) — close in diameter, different pitch, do not mix. Use a true M1.4 screw so it does not cross-thread or strip the hole.
- Where can I buy replacement screws for Dell XPS 16 9640?
- TechSpareWarehouse (our own store) lists M2 x 3mm, M2 x 4mm and M2.5 x 6mm, which match lengths in the records above.