Lenovo ThinkPad SL500c screw size
M2 / M2.5 · 3 to 15 mm long
The screws used on Lenovo ThinkPad SL500c are M2 and M2.5 in lengths from 3 to 15 mm.
There are 37 separate fitment records for it, including keyboard (qty 1, wafer, black) (M2), optical drive (qty 2, wafer, black) (M2) and palm rest (qty 4, wafer, black) (M2), plus 34 more in the table below.
Head and drive, as the sources state them: wafer (thin) head.
37 of the 37 records are marked confirmed, drawn from 2 sources (download.lenovo.com and tim.id.au).
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.
Lenovo ThinkPad SL500c 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 | 12 mm | 0.4 mm | Wafer (thin) head | not stated | Keyboard (qty 1, wafer, black)black finish | Confirmed |
| M2 | 12 mm | 0.4 mm | Wafer (thin) head | not stated | Optical drive (qty 2, wafer, black)black finish | Confirmed |
| M2 | 12 mm | 0.4 mm | Wafer (thin) head | not stated | Palm rest (qty 4, wafer, black)black finish | Confirmed |
| M2 | 12 mm | 0.4 mm | Wafer (thin) head | not stated | Unspecified (qty 4, wafer, black)black finish | Confirmed |
| M2 | 15 mm | 0.4 mm | Wafer (thin) head | not stated | Palm rest (qty 2, wafer, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | Battery (qty 1, wafer, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | Chassis/frame (qty 4, wafer, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | Display (qty 6, wafer,small-head, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | Keyboard (qty 2, wafer, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | Memory (qty 2, wafer, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | Optical drive (qty 1, wafer, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | Palm rest (qty 7, wafer, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | Unspecified (qty 4, wafer, black)black finish | Confirmed |
| M2 | 3 mm | 0.4 mm | Wafer (thin) head | not stated | Wireless card (qty 2, wafer, black)black finish | Confirmed |
| M2 | 4 mm | 0.4 mm | Wafer (thin) head | not stated | I/O board (qty 4, wafer, silver) | Confirmed |
| M2 | 4 mm | 0.4 mm | Wafer (thin) head | not stated | Chassis/frame (qty 3, wafer, silver) | Confirmed |
| M2 | 4 mm | 0.4 mm | Wafer (thin) head | not stated | Display (qty 2, wafer,small-head, silver) | Confirmed |
| M2 | 4 mm | 0.4 mm | Wafer (thin) head | not stated | Fan (qty 5, wafer, silver) | Confirmed |
| M2 | 4 mm | 0.4 mm | Wafer (thin) head | not stated | Heat sink (qty 4, wafer, silver) | Confirmed |
| M2 | 4 mm | 0.4 mm | Wafer (thin) head | not stated | Optical drive (qty 2, wafer, silver) | Confirmed |
| M2 | 4 mm | 0.4 mm | Wafer (thin) head | not stated | Palm rest (qty 1, wafer, silver) | Confirmed |
| M2 | 4 mm | 0.4 mm | Wafer (thin) head | not stated | System board (qty 2, wafer, silver) | Confirmed |
| M2 | 4 mm | 0.4 mm | Wafer (thin) head | not stated | Unspecified (qty 5, wafer, silver) | Confirmed |
| M2 | 5 mm | 0.4 mm | Wafer (thin) head | not stated | Chassis/frame (qty 2, wafer, black)black finish | Confirmed |
| M2 | 5 mm | 0.4 mm | Wafer (thin) head | not stated | Display (qty 2, wafer, black)black finish | Confirmed |
| M2 | 5 mm | 0.4 mm | Wafer (thin) head | not stated | Palm rest (qty 2, wafer, black)black finish | Confirmed |
| M2 | 5 mm | 0.4 mm | Wafer (thin) head | not stated | Unspecified (qty 2, wafer, black)black finish | Confirmed |
| M2 | 6 mm | 0.4 mm | Wafer (thin) head | not stated | Unspecified (qty 2, wafer, silver) | Confirmed |
| M2 | 7 mm | 0.4 mm | Wafer (thin) head | not stated | Display (qty 1, wafer, black)black finish | Confirmed |
| M2 | 7 mm | 0.4 mm | Wafer (thin) head | not stated | Optical drive (qty 2, wafer, black)black finish | Confirmed |
| M2 | 7 mm | 0.4 mm | Wafer (thin) head | not stated | Palm rest (qty 2, wafer, black)black finish | Confirmed |
| M2 | 7 mm | 0.4 mm | Wafer (thin) head | not stated | System board (qty 2, wafer, black)black finish | Confirmed |
| M2 | 7 mm | 0.4 mm | Wafer (thin) head | not stated | Unspecified (qty 2, wafer, black)black finish | Confirmed |
| M2.5 | 10 mm | 0.45 mm | Wafer (thin) head | not stated | Display (qty 2, wafer, black)black finish | Confirmed |
| M2.5 | 5 mm | 0.45 mm | Wafer (thin) head | not stated | Display (qty 4, wafer,binding, black)black finish | Confirmed |
| M2.5 | 5 mm | 0.45 mm | Wafer (thin) head | not stated | Palm rest (qty 2, wafer, black)black finish | Confirmed |
| M2.5 | 7 mm | 0.45 mm | Wafer (thin) head | not stated | Display (qty 2, wafer, black)black finish | Confirmed |
Fitment records and sources
Keyboard (qty 1, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Optical drive (qty 2, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Palm rest (qty 4, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 4, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Palm rest (qty 2, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Battery (qty 1, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Chassis/frame (qty 4, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 6, wafer,small-head, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Keyboard (qty 2, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Memory (qty 2, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Optical drive (qty 1, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Palm rest (qty 7, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 4, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Wireless card (qty 2, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
I/O board (qty 4, wafer, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Chassis/frame (qty 3, wafer, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 2, wafer,small-head, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Fan (qty 5, wafer, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Heat sink (qty 4, wafer, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Optical drive (qty 2, wafer, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Palm rest (qty 1, wafer, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (qty 2, wafer, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 5, wafer, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Chassis/frame (qty 2, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 2, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Palm rest (qty 2, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 2, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 2, wafer, silver)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 1, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Optical drive (qty 2, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Palm rest (qty 2, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (qty 2, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 2, wafer, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 2, wafer, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 4, wafer,binding, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 2, wafer, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 2, wafer, black)
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 wafer (thin) head screws, measure from under the head to the tip (countersunk heads are the exception: they are measured overall).
- The records span 3–15 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
- Xbox Series X internal chassis screws are M3, not M2 (confirmed on iFixit) — a widespread misconception.
- 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.
- Nylon-coated M2.5 screws (ThinkPad Edge) are thread-locking; plain replacements work loose over time.
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 ThinkPad SL500c, closest length match first.
- Lenovo LOQ 15IAX9I, and Lenovo LOQ 15IRX9 also M2 × 3 mm
- HP Compaq Presario R4000 also M2 × 15 mm
- HP EliteBook 840 14 inch G11 also M2 × 4 mm
- Acer Aspire 7745G also M2 × 3 mm
- Lenovo ideapad 100S-14IBR also M2 × 4 mm
- Lenovo ideapad 330L-17IKB also M2 × 3 mm
- Lenovo B330S-14IKBR also M2 × 3 mm
- Lenovo ideapad 310-15ISK also M2 × 3 mm
Questions about Lenovo ThinkPad SL500c screws
- What size screw does Lenovo ThinkPad SL500c use?
- M2 × 12 mm for keyboard (qty 1, wafer, black); M2 × 12 mm for optical drive (qty 2, wafer, black); M2 × 12 mm for palm rest (qty 4, wafer, black); M2 × 12 mm for unspecified (qty 4, wafer, black); M2 × 15 mm for palm rest (qty 2, wafer, black); M2 × 3 mm for battery (qty 1, wafer, black); M2 × 3 mm for chassis/frame (qty 4, wafer, black); M2 × 3 mm for display (qty 6, wafer,small-head, black); M2 × 3 mm for keyboard (qty 2, wafer, black); M2 × 3 mm for memory (qty 2, wafer, black); M2 × 3 mm for optical drive (qty 1, wafer, black); M2 × 3 mm for palm rest (qty 7, wafer, black); M2 × 3 mm for unspecified (qty 4, wafer, black); M2 × 3 mm for wireless card (qty 2, wafer, black); M2 × 4 mm for I.
- How long are the screws in Lenovo ThinkPad SL500c?
- The records range from 3 to 15 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 ThinkPad SL500c?
- 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 Lenovo ThinkPad SL500c?
- TechSpareWarehouse (our own store) lists M2 x 3mm, M2 x 4mm and M2 x 5mm, which match lengths in the records above.