Dell Latitude 3380 screw size
M1.6 / M2 / M2.5 / M3 · 2 to 8.5 mm long
If you are replacing a screw on Dell Latitude 3380, the thread is M1.6, M2, M2.5 and M3 in lengths from 2 to 8.5 mm.
There are 12 separate fitment records for it, including display (M1.6), I/O board (qty 1) (M2) and battery (M2), plus 9 more in the table below.
12 of the 12 records are marked confirmed, drawn from 1 source (dl.dell.com).
An M1.6 screw is 1.6 mm in diameter with a 0.35 mm pitch, tapped with a 1.25 mm drill; imperial look-alike: #1-72 UNF (1.85 mm) is larger; there is no true imperial equivalent.
Dell Latitude 3380 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 |
|---|---|---|---|---|---|---|
| M1.6 | 2 mm | 0.35 mm | not stated | not stated | Display | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | I/O board (qty 1) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Battery | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Fan | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Hard drive | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | System board (qty 1) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Unspecified | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Wireless card (qty 1) | Confirmed |
| M2.5 | 2.5 mm | 0.45 mm | not stated | not stated | Heat sink (captive)captive | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | DC-in (qty 1) | Confirmed |
| M2.5 | 8.5 mm | 0.45 mm | not stated | not stated | Base cover (qty 1, captive)captive | Confirmed |
| M3 | 3 mm | 0.5 mm | not stated | not stated | Hard drive | Confirmed |
Fitment records and sources
Display
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
I/O board (qty 1)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Battery
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Fan
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hard drive
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (qty 1)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified
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
Heat sink (captive)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
DC-in (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Base cover (qty 1, captive)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hard drive
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
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 M1.6 screw measures about 1.6 mm with calipers (usually a hair under). This device also uses M2 / M2.5 / M3, so measure each screw rather than assuming they match.
- Pitch: 0.35 mm from one thread crest to the next (28.57 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 2–8.5 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source does not name the drive. Standard M1.6 heads take PH00 for Phillips and T4–T5 for Torx, and a 1.5 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 M1.6 is about 12-20 N·cm into metal threads and 6-10 N·cm into plastic bosses; snug it up and stop.
Common mix-ups with M1.6 / M2 / M2.5 / M3
- 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.
- Thorlabs' 16mm cage system standard plates use dual 4-40 (UNC) and M3 taps on the same plate (e.g., SP01), so metric and imperial fasteners are both valid depending on the region/kit purchased.
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 Latitude 3380, closest length match first.
- Lenovo ThinkPad T400 also M2 × 3 mm
- Lenovo ideapad 310 also M2 × 3 mm
- Dell Precision M70 also M2 × 3 mm
- Dell XPS 15 7590 also M2 × 3 mm
- HP Chromebook x360 14 inch also M2 × 3 mm
- Dell Latitude 5289 also M2 × 3 mm
- Lenovo ThinkPad T15 Gen 1 also M2 × 3 mm
- Lenovo IdeaPad U530 Touch also M2.5 × 5 mm
Questions about Dell Latitude 3380 screws
- What size screw does Dell Latitude 3380 use?
- M1.6 × 2 mm for display; M2 × 3 mm for I/O board (qty 1); M2 × 3 mm for battery; M2 × 3 mm for fan; M2 × 3 mm for hard drive; M2 × 3 mm for system board (qty 1); M2 × 3 mm for unspecified; M2 × 3 mm for wireless card (qty 1); M2.5 × 2.5 mm for heat sink (captive); M2.5 × 5 mm for DC-in (qty 1); M2.5 × 8.5 mm for base cover (qty 1, captive); M3 × 3 mm for hard drive.
- How long are the screws in Dell Latitude 3380?
- The records range from 2 to 8.5 mm depending on the position, so match each screw to its own hole.
- What is the thread pitch of an M1.6 screw?
- 0.35 mm (coarse), which is the standard pitch for M1.6 machine screws; a 0.2 mm fine pitch exists but is uncommon. The tap drill is 1.25 mm and the normal clearance hole is 1.8 mm.
- What screwdriver do I need for Dell Latitude 3380?
- The sources do not name the drive. For M1.6, Phillips heads normally take PH00 and Torx heads T4–T5; socket heads take a 1.5 mm hex key.
- Can I use an imperial screw instead of M1.6?
- No. Imperial look-alike: #1-72 UNF (1.85 mm) is larger; there is no true imperial equivalent. Use a true M1.6 screw so it does not cross-thread or strip the hole.
- Where can I buy replacement screws for Dell Latitude 3380?
- TechSpareWarehouse (our own store) lists M2 x 3mm, M2.5 x 5mm and M3 x 3mm, which match lengths in the records above.