Dell Pro 14 Premium PA14250 screw size
M1.4 / M1.6 / M2 / M2.5 · 1.2 to 7 mm long
If you are replacing a screw on Dell Pro 14 Premium PA14250, the thread is M1.4, M1.6, M2 and M2.5 in lengths from 1.2 to 7 mm.
There are 17 separate fitment records for it, including keyboard (qty 18) (M1.4), keyboard (qty 7) (M1.6) and SSD (qty 2, captive) (M1.6), plus 14 more in the table below.
17 of the 17 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 Pro 14 Premium PA14250 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 |
| M1.6 | 2 mm | 0.35 mm | not stated | not stated | Keyboard (qty 7) | Confirmed |
| M1.6 | 2 mm | 0.35 mm | not stated | not stated | SSD (qty 2, captive)captive | Confirmed |
| M1.6 | 2.3 mm | 0.35 mm | not stated | not stated | Power button (qty 1, captive)captive | Confirmed |
| M1.6 | 2.3 mm | 0.35 mm | not stated | not stated | Wireless card (qty 1, captive)captive | Confirmed |
| M1.6 | 2.5 mm | 0.35 mm | not stated | not stated | I/O board (qty 4) | Confirmed |
| M1.6 | 2.5 mm | 0.35 mm | not stated | not stated | System board (qty 1) | Confirmed |
| M1.6 | 3 mm | 0.35 mm | not stated | not stated | Fan (qty 2) | Confirmed |
| M1.6 | 5.5 mm | 0.35 mm | not stated | not stated | I/O board (qty 4) | Confirmed |
| M1.6 | 5.5 mm | 0.35 mm | not stated | not stated | Bracket (qty 2, captive)captive | Confirmed |
| M1.6 | 5.5 mm | 0.35 mm | not stated | not stated | Wireless card (qty 1, captive)captive | Confirmed |
| M2 | 2 mm | 0.4 mm | not stated | not stated | Speaker (qty 6) | Confirmed |
| M2 | 3.5 mm | 0.4 mm | not stated | not stated | Heat sink (qty 3, captive)captive | Confirmed |
| M2 | 4.5 mm | 0.4 mm | not stated | not stated | Battery (qty 4, captive)captive | Confirmed |
| M2 | 5 mm | 0.4 mm | not stated | not stated | USB-C board (qty 2) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Hinge (qty 6) | Confirmed |
| M2.5 | 7 mm | 0.45 mm | not stated | not stated | Base cover (qty 7, captive)captive | 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 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
SSD (qty 2, captive)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Power button (qty 1, captive)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Wireless card (qty 1, captive)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
I/O board (qty 4)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
System board (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
I/O board (qty 4)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Bracket (qty 2, captive)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Wireless card (qty 1, captive)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Speaker (qty 6)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Heat sink (qty 3, captive)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Battery (qty 4, captive)
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 6)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Base cover (qty 7, captive)
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 1.2–7 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source does not name the drive. Standard M1.4 heads take PH000 / PH00 for Phillips and T2–T3 for Torx, and a 1.3 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 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.
- 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
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M1.6 x 3mm Screws for Dell XPS 13 9340 System Board Replacement 10-Pack Black
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10x M2 x 2mm Phillips Screws for HP EliteBook 840 G6 846 G6 SSD WiFi
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M2 x 2mm Phillips Flat Head Screw for HP EliteBook 840/846 G6 Laptop Repair - Pack of 100 Black
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M2 x 5mm Replacement Bottom Case Screws for Dell Inspiron 3535 Laptop 10-Pack
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M2 x 5mm Phillips Wafer Head Screw for Dell G16 7630 Gaming Laptop Repair - Pack of 100 Black
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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 Pro 14 Premium PA14250, closest length match first.
- Dell Inspiron 4000 also M2.5 × 5 mm
- HP Compaq tc4200 also M2 × 5 mm
- HP EliteBook 740 G1 also M2 × 2 mm
- Dell Inspiron 15 3582 also M2 × 2 mm
- Lenovo IdeaPad S500 Touch also M2 × 2 mm
- Lenovo ThinkPad X13 2-in-1 Gen 5 also M1.6 × 2.5 mm
- HP Pavilion 14 14-ec1000 (ids 2100371663 also M2 × 2 mm
- Acer Aspire 1810T also M2 × 5 mm
Questions about Dell Pro 14 Premium PA14250 screws
- What size screw does Dell Pro 14 Premium PA14250 use?
- M1.4 × 1.2 mm for keyboard (qty 18); M1.6 × 2 mm for keyboard (qty 7); M1.6 × 2 mm for SSD (qty 2, captive); M1.6 × 2.3 mm for power button (qty 1, captive); M1.6 × 2.3 mm for wireless card (qty 1, captive); M1.6 × 2.5 mm for I/O board (qty 4); M1.6 × 2.5 mm for system board (qty 1); M1.6 × 3 mm for fan (qty 2); M1.6 × 5.5 mm for I/O board (qty 4); M1.6 × 5.5 mm for bracket (qty 2, captive); M1.6 × 5.5 mm for wireless card (qty 1, captive); M2 × 2 mm for speaker (qty 6); M2 × 3.5 mm for heat sink (qty 3, captive); M2 × 4.5 mm for battery (qty 4, captive); M2 × 5 mm for USB-C board (qty 2); M2.5 × 5 mm for hinge (qty 6); M2.5 × 7 mm for base cover (qty 7, captive).
- How long are the screws in Dell Pro 14 Premium PA14250?
- The records range from 1.2 to 7 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 Pro 14 Premium PA14250?
- The sources do not name the drive. For M1.4, Phillips heads normally take PH000 / PH00 and Torx heads T2–T3; socket heads take 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 Pro 14 Premium PA14250?
- TechSpareWarehouse (our own store) lists M1.6 x 3mm, M2 x 2mm and M2 x 5mm, which match lengths in the records above.