Dell Inspiron 15 7591 screw size
M1.2 / M1.6 / M2 / M2.5 / M3 · 2 to 5 mm long
Dell Inspiron 15 7591 takes M1.2, M1.6, M2, M2.5 and M3 metric screws in lengths from 2 to 5 mm.
There are 19 separate fitment records for it, including DC-in (qty 1) (M1.2), power button (qty 2) (M1.2) and power button (qty 2) (M1.6), plus 16 more in the table below.
19 of the 19 records are marked confirmed, drawn from 1 source (dl.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 Inspiron 15 7591 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 | DC-in (qty 1) | Confirmed |
| M1.2 | 2 mm | 0.25 mm | not stated | not stated | Power button (qty 2) | Confirmed |
| M1.6 | 2 mm | 0.35 mm | not stated | not stated | Power button (qty 2) | Confirmed |
| M1.6 | 2 mm | 0.35 mm | not stated | not stated | Touchpad (qty 2) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | I/O board (qty 3) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Touchpad (qty 3) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Battery (qty 7) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | DC-in (qty 1) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Display (qty 6) | 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 | Hard drive (qty 3) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | SSD (qty 2) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | System board (qty 6) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | USB-C board (qty 2) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Wireless card (qty 1) | Confirmed |
| M2 | 5 mm | 0.4 mm | not stated | not stated | Base cover (qty 5) | 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 |
| M3 | 3 mm | 0.5 mm | not stated | not stated | Hard drive (qty 4) | Confirmed |
Fitment records and sources
DC-in (qty 1)
pitch 0.25 mm · tap 0.95 mm · clearance 1.4 mm · PH000 / JIS 00 / Torx T1–T2
Power button (qty 2)
pitch 0.25 mm · tap 0.95 mm · clearance 1.4 mm · PH000 / JIS 00 / Torx T1–T2
Power button (qty 2)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Touchpad (qty 2)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
I/O board (qty 3)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Touchpad (qty 3)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Battery (qty 7)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
DC-in (qty 1)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 6)
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
Hard drive (qty 3)
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
System board (qty 6)
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
Wireless card (qty 1)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Base cover (qty 5)
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
Hard drive (qty 4)
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
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 / M3, 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 2–5 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 / M3
- 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.
- Headphone hinge screw sizes are usually quoted from screwdriver bit size, not an actual thread spec - measure before buying.
- 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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M2 x 4mm Phillips Wafer Head Machine Screws Black 50-Pack Laptop SSD Repair
$4.49 each · min. 2
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M2 x 4mm Screws for Dell Latitude 5530 SSD Type-C Bracket 10-Pack 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
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More in Laptops & PCs
The same screw also fits
Devices whose records share a thread with Dell Inspiron 15 7591, closest length match first.
- Dell Latitude D610 also M2 × 3 mm
- Dell Inspiron 8100 also M2 × 3 mm
- Lenovo ThinkPad T500 also M2 × 3 mm
- Lenovo ideapad 320E-17IKB also M2 × 3 mm
- Acer Aspire 4935G also M2 × 3 mm
- Dell Latitude 3180 also M2 × 3 mm
- Laptop hinge covers & trim panels also M2 × 3 mm
- HP EliteBook 830 G5 / 836 G5 also M2 × 3 mm
Questions about Dell Inspiron 15 7591 screws
- What size screw does Dell Inspiron 15 7591 use?
- M1.2 × 2 mm for DC-in (qty 1); M1.2 × 2 mm for power button (qty 2); M1.6 × 2 mm for power button (qty 2); M1.6 × 2 mm for touchpad (qty 2); M2 × 3 mm for I/O board (qty 3); M2 × 3 mm for touchpad (qty 3); M2 × 4 mm for battery (qty 7); M2 × 4 mm for DC-in (qty 1); M2 × 4 mm for display (qty 6); M2 × 4 mm for fan (qty 2); M2 × 4 mm for hard drive (qty 3); M2 × 4 mm for SSD (qty 2); M2 × 4 mm for system board (qty 6); M2 × 4 mm for USB-C board (qty 2); M2 × 4 mm for wireless card (qty 1); M2 × 5 mm for base cover (qty 5); M2 × 5 mm for USB-C board (qty 2); M2.5 × 5 mm for hinge (qty 6); M3 × 3 mm for hard drive (qty 4).
- How long are the screws in Dell Inspiron 15 7591?
- The records range from 2 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 Inspiron 15 7591?
- 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 Inspiron 15 7591?
- TechSpareWarehouse (our own store) lists M1.2 x 2mm, M2 x 3mm and M2 x 4mm, which match lengths in the records above.