Lenovo Ideapad 100-15IBY screw size
M2 / M2.5 / M3 · 2 to 6 mm long
The screws used on Lenovo Ideapad 100-15IBY are M2, M2.5 and M3 in lengths from 2 to 6 mm.
There are 19 separate fitment records for it, including base cover (qty 2, flat, black) (M2), battery (qty 3, black, Phillips) (M2) and display (qty 4, black, Phillips) (M2), plus 16 more in the table below.
Head and drive, as the sources state them: Phillips drive.
19 of the 19 records are marked confirmed, drawn from 1 source (download.lenovo.com).
M2 means a 2 mm nominal diameter with a 0.4 mm thread pitch. Imperial look-alike: #2-56 UNC (2.18 mm) is close but not interchangeable.
Lenovo Ideapad 100-15IBY 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 | 2 mm | 0.4 mm | not stated | not stated | Base cover (qty 2, flat, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Battery (qty 3, black, Phillips)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Display (qty 4, black, Phillips)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Optical drive (qty 1, black, Phillips)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Palm rest (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 | 4 mm | 0.4 mm | not stated | Phillips | Battery (qty 2, silver, Phillips) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | Phillips | Hard drive (qty 4, silver, Phillips) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | Phillips | Heat sink (qty 4, silver, Phillips) | Confirmed |
| M2 | 6 mm | 0.4 mm | not stated | Phillips | Base cover (qty 7, black, Phillips)black finish | Confirmed |
| M2 | 6 mm | 0.4 mm | not stated | Phillips | Keyboard (qty 3, black, Phillips)black finish | Confirmed |
| M2 | 6 mm | 0.4 mm | not stated | Phillips | Optical drive (qty 1, black, Phillips)black finish | Confirmed |
| M2.5 | 2.5 mm | 0.45 mm | not stated | not stated | Display (qty 6, broadhead, black)black finish | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | Phillips | Base cover (qty 2, black, Phillips)black finish | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | Phillips | Palm rest (qty 4, black, Phillips)black finish | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | Phillips | Base cover (qty 10, black, Phillips)black finish | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | Phillips | Palm rest (qty 5, black, Phillips)black finish | Confirmed |
| M3 | 3 mm | 0.5 mm | not stated | Phillips | Hard drive (qty 4, silver, Phillips) | Confirmed |
Fitment records and sources
Base cover (qty 2, flat, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Battery (qty 3, black, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 4, black, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Optical drive (qty 1, black, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Palm rest (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
Battery (qty 2, silver, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hard drive (qty 4, silver, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Heat sink (qty 4, silver, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Base cover (qty 7, black, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Keyboard (qty 3, black, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Optical drive (qty 1, black, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 6, broadhead, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Base cover (qty 2, black, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 4, black, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Base cover (qty 10, black, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 5, black, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hard drive (qty 4, silver, Phillips)
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 M2 screw measures about 2 mm with calipers (usually a hair under). This device also uses M2.5 / M3, 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: measure from under the head to the tip for pan, button, wafer and cap heads; countersunk (flat) heads are measured overall.
- The records span 2–6 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 M2 heads take PH0 (Phillips) or T6 (Torx), or a 1.5 mm hex key.
- 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 / M3
- 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.
- Suunto dive computer service manuals reference strap pins and battery compartment springs but do not explicitly cite a metric screw thread size in the sections reviewed; do not infer M2/M2.5 fitment for Suunto dive computer straps without direct confirmation.
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.
-
10x M2 x 2mm Phillips Screws for HP EliteBook 840 G6 846 G6 SSD WiFi
$4.99 -
M2 x 2mm Phillips Flat Head Screw for HP EliteBook 840/846 G6 Laptop Repair - Pack of 100 Black
$7.99 -
M2 x 3mm Screws for Dell XPS 13 9340 Base Cover SSD Shield 10-Pack Black
$4.99 -
10x M2 x 3mm Phillips Screws for Lenovo ThinkPad X131e Chromebook WiFi SSD
$4.99 -
M2 x 4mm Phillips Wafer Head Machine Screws Black 50-Pack Laptop SSD Repair
$4.49 each · min. 2
-
M2 x 4mm Screws for Dell Latitude 5530 SSD Type-C Bracket 10-Pack Black
$4.99 -
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
$0.10Choose size
More in Laptops & PCs
The same screw also fits
Devices whose records share a thread with Lenovo Ideapad 100-15IBY, closest length match first.
- Laptop 2.5in drive caddy also M2 × 3 mm
- Acer TravelMate 5220G also M2 × 3 mm
- Lenovo ThinkPad 380XD also M2 × 6 mm
- Dell Precision M4300 also M2 × 3 mm
- Lenovo IdeaPad Flex Pro-13IKB also M2 × 3 mm
- Lenovo Slim 7 14ILL10 also M2 × 2 mm
- HP 6710b also M2 × 3 mm
- Acer Aspire 4250 also M2 × 2 mm
Questions about Lenovo Ideapad 100-15IBY screws
- What size screw does Lenovo Ideapad 100-15IBY use?
- M2 × 2 mm for base cover (qty 2, flat, black); M2 × 3 mm for battery (qty 3, black, Phillips); M2 × 3 mm for display (qty 4, black, Phillips); M2 × 3 mm for optical drive (qty 1, black, Phillips); M2 × 3 mm for palm rest (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 × 4 mm for battery (qty 2, silver, Phillips); M2 × 4 mm for hard drive (qty 4, silver, Phillips); M2 × 4 mm for heat sink (qty 4, silver, Phillips); M2 × 6 mm for base cover (qty 7, black, Phillips); M2 × 6 mm for keyboard (qty 3, black, Phillips); M2 × 6 mm for optical drive (qty 1, black, Phillips); M2.5 × 2.5 mm for display (qty 6, broadh.
- How long are the screws in Lenovo Ideapad 100-15IBY?
- The records range from 2 to 6 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 Lenovo Ideapad 100-15IBY?
- The source lists a Phillips drive. Standard M2 heads otherwise take PH0 (Phillips) or T6 (Torx), or 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 Lenovo Ideapad 100-15IBY?
- TechSpareWarehouse (our own store) lists M2 x 2mm, M2 x 3mm and M2 x 4mm, which match lengths in the records above.



