Dell 14 Premium DA14250 screw size
M1.4 / M1.6 / M2 / M2.5 · 1.2 to 5.5 mm long
The screws used on Dell 14 Premium DA14250 are M1.4, M1.6, M2 and M2.5 in lengths from 1.2 to 5.5 mm.
There are 11 separate fitment records for it, including keyboard (qty 18) (M1.4), keyboard (qty 7) (M1.4) and power button (qty 4) (M1.4), plus 8 more in the table below.
Head and drive, as the sources state them: Torx T5 drive.
11 of the 11 records are marked confirmed, drawn from 1 source (dell.com).
M1.4 means a 1.4 mm nominal diameter with a 0.3 mm thread pitch. Imperial look-alike: #0-80 UNF (1.52 mm) — close in diameter, different pitch, do not mix.
Dell 14 Premium DA14250 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 | 1.2 mm | 0.3 mm | not stated | not stated | Keyboard (qty 18) | Confirmed |
| M1.4 | 1.4 mm | 0.3 mm | not stated | not stated | Keyboard (qty 7) | Confirmed |
| M1.4 | 2 mm | 0.3 mm | not stated | not stated | Power button (qty 4) | Confirmed |
| M1.6 | 3 mm | 0.35 mm | not stated | not stated | Fan (qty 2) | Confirmed |
| M1.6 | 3.5 mm | 0.35 mm | not stated | not stated | Battery (qty 6) | Confirmed |
| M1.6 | 3.5 mm | 0.35 mm | not stated | not stated | Display (qty 2) | Confirmed |
| M1.6 | 3.5 mm | 0.35 mm | not stated | not stated | System board (qty 11) | Confirmed |
| M1.6 | 4 mm | 0.35 mm | not stated | not stated | Display (qty 2) | Confirmed |
| M2 | 2 mm | 0.4 mm | not stated | not stated | SSD (qty 2) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Torx T5 | Base cover (qty 8, Torx T5) | Confirmed |
| M2.5 | 5.5 mm | 0.45 mm | not stated | not stated | Display (qty 6) | Confirmed |
Fitment records and sources
Keyboard (qty 18)
pitch 0.3 mm · tap 1.1 mm · clearance 1.6 mm · PH000 / PH00 / Torx T2–T3
Keyboard (qty 7)
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
Fan (qty 2)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Battery (qty 6)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Display (qty 2)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
System board (qty 11)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Display (qty 2)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
SSD (qty 2)
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
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 M1.4 screw measures about 1.4 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: 0.3 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 1.2–5.5 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 / M1.6 / 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.
- 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.
- 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.
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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M1.4 x 2mm Screws for Dell XPS 13 9340 Power Button Fingerprint 10-Pack Black
$4.99 -
M1.4 x 2mm Screws for Dell XPS 14 9440 Power Button – 10-Pack Black
$4.99
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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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M1.6 x 4mm Screws Compatible with Dell XPS 14 9440 Battery System Board 10-Pack
$4.99 -
M1.6 x 4mm Phillips Wafer Head Micro Screws LCD Shell Repair 10-Pack
$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 14 Premium DA14250, closest length match first.
- HP nx6120 also M2 × 2 mm
- Lenovo ideapad 330H-15ICH also M2 × 3 mm
- Lenovo Z710 also M2 × 2 mm
- Dell Pro Max 18 Plus MB18250 also M1.4 × 1.2 mm
- Lenovo G480 also M2 × 2 mm
- Lenovo ThinkPad S431 also M2 × 2 mm
- Lenovo ideapad 510-15IKB also M2 × 3 mm
- Toshiba Satellite 2400 also M2 × 3 mm
Questions about Dell 14 Premium DA14250 screws
- What size screw does Dell 14 Premium DA14250 use?
- M1.4 × 1.2 mm for keyboard (qty 18); M1.4 × 1.4 mm for keyboard (qty 7); M1.4 × 2 mm for power button (qty 4); M1.6 × 3 mm for fan (qty 2); M1.6 × 3.5 mm for battery (qty 6); M1.6 × 3.5 mm for display (qty 2); M1.6 × 3.5 mm for system board (qty 11); M1.6 × 4 mm for display (qty 2); M2 × 2 mm for SSD (qty 2); M2 × 3 mm for base cover (qty 8, Torx T5); M2.5 × 5.5 mm for display (qty 6).
- How long are the screws in Dell 14 Premium DA14250?
- The records range from 1.2 to 5.5 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 14 Premium DA14250?
- 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 14 Premium DA14250?
- TechSpareWarehouse (our own store) lists M1.4 x 2mm, M1.6 x 3mm and M1.6 x 4mm, which match lengths in the records above.