Dell Alienware x16 R1 screw size
M1.2 / M1.6 / M2 / M2.5 · 1.6 to 5 mm long
Our records put Dell Alienware x16 R1 on M1.2, M1.6, M2 and M2.5 screws in lengths from 1.6 to 5 mm.
There are 20 separate fitment records for it, including power button (qty 2) (M1.2), keyboard (qty 2) (M1.6) and touchpad (qty 9) (M1.6), plus 17 more in the table below.
20 of the 20 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 Alienware x16 R1 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 mm | 0.25 mm | not stated | not stated | Power button (qty 2) | Confirmed |
| M1.6 | 1.6 mm | 0.35 mm | not stated | not stated | Keyboard (qty 2) | Confirmed |
| M1.6 | 1.8 mm | 0.35 mm | not stated | not stated | Touchpad (qty 9) | Confirmed |
| M1.6 | 3 mm | 0.35 mm | not stated | not stated | Card reader (qty 1) | Confirmed |
| M1.6 | 3 mm | 0.35 mm | not stated | not stated | Display (qty 4) | Confirmed |
| M1.6 | 3 mm | 0.35 mm | not stated | not stated | Unspecified (qty 4) | Confirmed |
| M1.6 | 3 mm | 0.35 mm | not stated | not stated | Wireless card (qty 4) | Confirmed |
| M2 | 2.5 mm | 0.4 mm | not stated | not stated | I/O board (qty 4) | Confirmed |
| M2 | 2.5 mm | 0.4 mm | not stated | not stated | DC-in (qty 2) | Confirmed |
| M2 | 2.5 mm | 0.4 mm | not stated | not stated | Display (qty 2) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Fan (qty 8) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Wireless card (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 | Fan (qty 2) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | SSD (qty 1) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | System board (qty 7) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Wireless card (qty 2) | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Display (qty 8) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Base cover (qty 4, captive)captive | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Unspecified (qty 2) | Confirmed |
Fitment records and sources
Power button (qty 2)
pitch 0.25 mm · tap 0.95 mm · clearance 1.4 mm · PH000 / JIS 00 / Torx T1–T2
Keyboard (qty 2)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Touchpad (qty 9)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Card reader (qty 1)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Display (qty 4)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Unspecified (qty 4)
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 4)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
DC-in (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Fan (qty 8)
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
Battery (qty 4)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Fan (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
SSD (qty 1)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (qty 7)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Wireless card (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 8)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Base cover (qty 4, captive)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (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 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 1.6–5 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source does not name the drive. Standard 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.
-
M1.2 x 2mm Phillips Wafer Head Screw for Digital Camera & Micro Robotics - Pack of 50 Black
$4.99 -
M1.2 x 2mm Screws for FPV Drone Build Phillips Wafer Head 10-Pack
$4.99 -
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
-
M2 x 2.5mm Screws for Dell XPS 14 9440 M.2 SSD Drive – 10-Pack Black
$4.99 -
M2 x 2.5mm Screws for ASUS ROG Strix G17 G713 SSD WiFi Touchpad 10-Pack Black
$4.99
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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
More in Laptops & PCs
The same screw also fits
Devices whose records share a thread with Dell Alienware x16 R1, closest length match first.
- Dell Inspiron 15 5580 also M2 × 3 mm
- Lenovo Flex 3-1120 also M2 × 3 mm
- HP Pavilion x360 also M2 × 2.5 mm
- HP ProBook 640 G8 also M2 × 2.5 mm
- Lenovo ideapad 330-17AST D also M2 × 3 mm
- Dell Inspiron 1520 also M2 × 3 mm
- Acer Aspire 7530 also M2 × 2.5 mm
- HP EliteBook 645 G10 also M2 × 2.5 mm
Questions about Dell Alienware x16 R1 screws
- What size screw does Dell Alienware x16 R1 use?
- M1.2 × 2 mm for power button (qty 2); M1.6 × 1.6 mm for keyboard (qty 2); M1.6 × 1.8 mm for touchpad (qty 9); M1.6 × 3 mm for card reader (qty 1); M1.6 × 3 mm for display (qty 4); M1.6 × 3 mm for unspecified (qty 4); M1.6 × 3 mm for wireless card (qty 4); M2 × 2.5 mm for I/O board (qty 4); M2 × 2.5 mm for DC-in (qty 2); M2 × 2.5 mm for display (qty 2); M2 × 3 mm for fan (qty 8); M2 × 3 mm for wireless card (qty 1); M2 × 4 mm for battery (qty 4); M2 × 4 mm for fan (qty 2); M2 × 4 mm for SSD (qty 1); M2 × 4 mm for system board (qty 7); M2 × 4 mm for wireless card (qty 2); M2.5 × 4 mm for display (qty 8); M2.5 × 5 mm for base cover (qty 4, captive); M2.5 × 5 mm for unspecified (qty 2).
- How long are the screws in Dell Alienware x16 R1?
- The records range from 1.6 to 5 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 Alienware x16 R1?
- 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 Alienware x16 R1?
- TechSpareWarehouse (our own store) lists M1.2 x 2mm, M1.6 x 3mm and M2 x 2.5mm, which match lengths in the records above.