Lenovo ideapad 330S-15ARR screw size
M1.6 / M2 / M2.5 / M3 · 2.3 to 5.5 mm long
Lenovo ideapad 330S-15ARR takes M1.6, M2, M2.5 and M3 metric screws in lengths from 2.3 to 5.5 mm.
There are 12 separate fitment records for it, including display (qty 4, black, Phillips) (M1.6), I/O board (qty 2, black, Phillips) (M2) and battery (qty 5, black, Phillips) (M2), plus 9 more in the table below.
Head and drive, as the sources state them: Phillips drive.
12 of the 12 records are marked confirmed, drawn from 1 source (download.lenovo.com).
For reference, M1.6 is 1.6 mm across the threads at 0.35 mm pitch. The imperial size people confuse it with: #1-72 UNF (1.85 mm) is larger; there is no true imperial equivalent.
Lenovo ideapad 330S-15ARR 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 | 2.5 mm | 0.35 mm | not stated | Phillips | Display (qty 4, black, Phillips)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | I/O board (qty 2, black, Phillips)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Battery (qty 5, black, Phillips)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Fan (qty 3, black, Phillips)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Hard drive (qty 4, black, Phillips)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | SSD (qty 1, black, Phillips)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | System board (qty 2, black, Phillips)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Wireless card (qty 1, black, Phillips)black finish | Confirmed |
| M2 | 5.5 mm | 0.4 mm | not stated | Phillips | Base cover (qty 10, black, Phillips)black finish | Confirmed |
| M2.5 | 2.3 mm | 0.45 mm | not stated | Phillips | Display (qty 8, black, Phillips)black finish | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | Phillips | Palm rest (qty 6, black, Phillips)black finish | Confirmed |
| M3 | 3 mm | 0.5 mm | not stated | Phillips | Hard drive (qty 4, black, Phillips)black finish | Confirmed |
Fitment records and sources
Display (qty 4, black, Phillips)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
I/O board (qty 2, black, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Battery (qty 5, black, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Fan (qty 3, black, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hard drive (qty 4, black, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
SSD (qty 1, black, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (qty 2, black, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Wireless card (qty 1, black, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Base cover (qty 10, black, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 8, black, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 6, black, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hard drive (qty 4, black, Phillips)
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 M1.6 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 2.3–5.5 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source names a Phillips drive. For comparison, standard M1.6 heads take PH00 (Phillips) or T4–T5 (Torx), or a 1.5 mm hex key.
- 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
- 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.
- 3.5in desktop and enterprise hard drives are 6-32 UNC imperial, not M3 - only the 2.5in form factor is metric.
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 Lenovo ideapad 330S-15ARR, closest length match first.
- Dell Inspiron 14 3468 also M2 × 3 mm
- HP 17-x000 (Touch) also M2 × 3 mm
- Lenovo ideapad 510S-14ISK also M2 × 3 mm
- HP or nx9020 PC Compaq Presario 2200 also M2 × 3 mm
- HP EliteBook Folio 1030 G1 also M2 × 3 mm
- Dell Inspiron 17 7779 2-in-1 also M2 × 3 mm
- Dell Inspiron 14 7441 Plus also M2 × 5.5 mm
- Lenovo ThinkPad L15 Gen 2 also M2 × 3 mm
Questions about Lenovo ideapad 330S-15ARR screws
- What size screw does Lenovo ideapad 330S-15ARR use?
- M1.6 × 2.5 mm for display (qty 4, black, Phillips); M2 × 3 mm for I/O board (qty 2, black, Phillips); M2 × 3 mm for battery (qty 5, black, Phillips); M2 × 3 mm for fan (qty 3, black, Phillips); M2 × 3 mm for hard drive (qty 4, black, Phillips); M2 × 3 mm for SSD (qty 1, black, Phillips); M2 × 3 mm for system board (qty 2, black, Phillips); M2 × 3 mm for wireless card (qty 1, black, Phillips); M2 × 5.5 mm for base cover (qty 10, black, Phillips); M2.5 × 2.3 mm for display (qty 8, black, Phillips); M2.5 × 5 mm for palm rest (qty 6, black, Phillips); M3 × 3 mm for hard drive (qty 4, black, Phillips).
- How long are the screws in Lenovo ideapad 330S-15ARR?
- The records range from 2.3 to 5.5 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 Lenovo ideapad 330S-15ARR?
- The source lists a Phillips drive. Standard M1.6 heads otherwise take PH00 (Phillips) or T4–T5 (Torx), or 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 Lenovo ideapad 330S-15ARR?
- TechSpareWarehouse (our own store) lists M2 x 3mm, M2.5 x 5mm and M3 x 3mm, which match lengths in the records above.





