Dell Inspiron 1100 screw size
M2 / M2.5 · 3 to 8 mm long
The screws used on Dell Inspiron 1100 are M2 and M2.5 in lengths from 3 to 8 mm.
There are 16 separate fitment records for it, including display (qty 8) (M2), keyboard (qty 4) (M2) and unspecified (qty 2) (M2), plus 13 more in the table below.
Head and drive, as the sources state them: pan head.
16 of the 16 records are marked confirmed, drawn from 1 source (dl.dell.com).
An M2 screw is 2 mm in diameter with a 0.4 mm pitch, tapped with a 1.6 mm drill; imperial look-alike: #2-56 UNC (2.18 mm) is close but not interchangeable.
Dell Inspiron 1100 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 |
|---|---|---|---|---|---|---|
| M2 | 3 mm | 0.4 mm | not stated | not stated | Display (qty 8) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Keyboard (qty 4) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | not stated | Unspecified (qty 2) | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Battery (qty 1) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Battery (qty 2) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | Pan head | not stated | Display (qty 5, pan) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Display bezel (qty 5) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Hard drive (qty 3) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Hinge (qty 2) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Optical drive (qty 2) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Palm rest (qty 2) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | System board (qty 3) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Wireless card (qty 2) | Confirmed |
| M2.5 | 8 mm | 0.45 mm | not stated | not stated | Optical drive (qty 1) | Confirmed |
| M2.5 | 8 mm | 0.45 mm | not stated | not stated | Palm rest (qty 12) | Confirmed |
| M2.5 | 8 mm | 0.45 mm | not stated | not stated | Unspecified (qty 2) | Confirmed |
Fitment records and sources
Display (qty 8)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Keyboard (qty 4)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Battery (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Battery (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 5, pan)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display bezel (qty 5)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hard drive (qty 3)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hinge (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Optical drive (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
System board (qty 3)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Wireless card (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Optical drive (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 12)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 2)
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 M2 screw measures about 2 mm with calipers (usually a hair under). This device also uses M2.5, so measure each screw rather than assuming they match.
- Pitch: 0.4 mm from one thread crest to the next (25 crests per centimetre). A thread pitch gauge or the pitch-gauge tool settles it in seconds.
- Length: for pan head screws, measure from under the head to the tip (countersunk heads are the exception: they are measured overall).
- The records span 3–8 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source does not name the drive. Standard M2 heads take PH0 for Phillips and T6 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 M2 is about 25-40 N·cm into metal threads and 12-20 N·cm into plastic bosses; snug it up and stop.
Common mix-ups with M2 / M2.5
- 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).
- 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.
- M2.5 and M3 look the same to the naked eye — you need calipers on the shank to tell them apart.
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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M2.5 x 4mm Screws for Lenovo IdeaPad 5 Pro 14 System Board Hinge 10-Pack Black
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M2.5 x 5mm Screws Compatible with Dell XPS 14 9440 Display Assembly 10-Pack
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M2.5 x 5mm Phillips Wafer Head Screw for Action Camera Protective Housing - Pack of 50 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
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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 1100, closest length match first.
- HP Chromebook x360 14c also M2 × 3 mm
- Lenovo ThinkPad 11e Chromebook 4th Gen also M2 × 3 mm
- Lenovo ThinkPad Edge E420s also M2 × 3 mm
- Intel NUC / mini PC internal boards also M2.5 × 4 mm
- Lenovo ThinkPad battery also M2.5 × 4 mm
- Lenovo V15 Gen 3 also M2.5 × 5 mm
- Toshiba Satellite L10 also M2 × 3 mm
- Acer Aspire 4332 also M2 × 3 mm
Questions about Dell Inspiron 1100 screws
- What size screw does Dell Inspiron 1100 use?
- M2 × 3 mm for display (qty 8); M2 × 3 mm for keyboard (qty 4); M2 × 3 mm for unspecified (qty 2); M2.5 × 4 mm for battery (qty 1); M2.5 × 5 mm for battery (qty 2); M2.5 × 5 mm for display (qty 5, pan); M2.5 × 5 mm for display bezel (qty 5); M2.5 × 5 mm for hard drive (qty 3); M2.5 × 5 mm for hinge (qty 2); M2.5 × 5 mm for optical drive (qty 2); M2.5 × 5 mm for palm rest (qty 2); M2.5 × 5 mm for system board (qty 3); M2.5 × 5 mm for wireless card (qty 2); M2.5 × 8 mm for optical drive (qty 1); M2.5 × 8 mm for palm rest (qty 12); M2.5 × 8 mm for unspecified (qty 2).
- How long are the screws in Dell Inspiron 1100?
- The records range from 3 to 8 mm depending on the position, so match each screw to its own hole.
- What is the thread pitch of an M2 screw?
- 0.4 mm (coarse), which is the standard pitch for M2 machine screws; a 0.25 mm fine pitch exists but is uncommon. The tap drill is 1.6 mm and the normal clearance hole is 2.4 mm.
- What screwdriver do I need for Dell Inspiron 1100?
- The sources do not name the drive. For M2, Phillips heads normally take PH0 and Torx heads T6; socket heads take a 1.5 mm hex key.
- Can I use an imperial screw instead of M2?
- No. Imperial look-alike: #2-56 UNC (2.18 mm) is close but not interchangeable. Use a true M2 screw so it does not cross-thread or strip the hole.
- Where can I buy replacement screws for Dell Inspiron 1100?
- TechSpareWarehouse (our own store) lists M2 x 3mm, M2.5 x 4mm and M2.5 x 5mm, which match lengths in the records above.