Dell 16 Premium DA16250 screw size
M1.4 / M1.6 / M2 / M2.5 · 1.3 to 6 mm long
The screws used on Dell 16 Premium DA16250 are M1.4, M1.6, 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), keyboard (qty 23) (M1.4) and SSD (qty 1) (M1.6), plus 9 more in the table below.
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 16 Premium DA16250 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 | 1.3 mm | 0.3 mm | not stated | not stated | Keyboard (qty 23) | Confirmed |
| M1.6 | 2 mm | 0.35 mm | not stated | not stated | SSD (qty 1) | 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 2) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Base cover (qty 8) | 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 | 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 5) | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Display (qty 4) | 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
Keyboard (qty 23)
pitch 0.3 mm · tap 1.1 mm · clearance 1.6 mm · PH000 / PH00 / Torx T2–T3
SSD (qty 1)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
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 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Base cover (qty 8)
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
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 5)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 4)
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 1.3–6 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.
- 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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More in Laptops & PCs
The same screw also fits
Devices whose records share a thread with Dell 16 Premium DA16250, closest length match first.
- Lenovo ThinkPad E490s also M2 × 4 mm
- Lenovo G510 also M2 × 3 mm
- Lenovo IdeaPad S210 Touch also M2 × 3 mm
- Lenovo ThinkPad T15p Gen 2 also M2 × 3 mm
- Dell Inspiron 15 3590 also M2 × 3 mm
- Lenovo ThinkPad T590 also M2 × 3 mm
- Dell Latitude 3310 also M2 × 3 mm
- HP Compaq nx8420 also M2 × 3 mm
Questions about Dell 16 Premium DA16250 screws
- What size screw does Dell 16 Premium DA16250 use?
- M1.4 × 1.3 mm for display (qty 2); M1.4 × 1.3 mm for keyboard (qty 23); M1.6 × 2 mm for SSD (qty 1); M2 × 3 mm for display (qty 2); M2 × 3 mm for SSD (qty 2); M2 × 3 mm for wireless card (qty 2); M2 × 4 mm for base cover (qty 8); M2 × 4.5 mm for battery (qty 6); 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 5); M2.5 × 6 mm for display (qty 4).
- How long are the screws in Dell 16 Premium DA16250?
- 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 16 Premium DA16250?
- 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 16 Premium DA16250?
- TechSpareWarehouse (our own store) lists M2 x 3mm, M2 x 4mm and M2.5 x 6mm, which match lengths in the records above.