Lenovo ThinkPad 13 2nd Gen / S2 2nd Gen screw size
M1.6 · 2.6 mm long
Our records put Lenovo ThinkPad 13 2nd Gen / S2 2nd Gen on M1.6 screws, 2.6 mm long.
Where it is used: base cover and internal bracket screws.
This entry is marked confirmed and comes from Lenovo ThinkPad 13 2nd Gen HMM.
M1.6 means a 1.6 mm nominal diameter with a 0.35 mm thread pitch. Imperial look-alike: #1-72 UNF (1.85 mm) is larger; there is no true imperial equivalent.
Lenovo ThinkPad 13 2nd Gen / S2 2nd Gen 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 | 2.6 mm | 0.35 mm | not stated | not stated | base cover and internal bracket screws | Confirmed |
Fitment records and sources
base cover and internal bracket screws
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Source: Lenovo ThinkPad 13 2nd Gen HMM
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). If yours measures noticeably more or less, it is a different thread.
- 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 record states 2.6 mm. Going longer risks bottoming out or touching parts behind the hole; going shorter loses thread engagement.
- Driver: the source does not name the drive. Standard M1.6 heads take PH00 for Phillips and T4–T5 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 M1.6 is about 12-20 N·cm into metal threads and 6-10 N·cm into plastic bosses; snug it up and stop.
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Devices whose records share a thread with Lenovo ThinkPad 13 2nd Gen / S2 2nd Gen, closest length match first.
- Lenovo ThinkPad T14s Gen 3 also M1.6 × 2.6 mm
- Lenovo ThinkPad T14s Gen 5 also M1.6 × 2.6 mm
- Lenovo ThinkPad T14s Gen 4 also M1.6 × 2.6 mm
- Lenovo ThinkPad T14s Gen 7 also M1.6 × 2.6 mm
- Lenovo ThinkPad T14s Gen 6 also M1.6 × 2.6 mm
- Laptop touchpads / clickpads also M1.6 × 2.6 mm
- Lenovo ThinkPad T14s Gen 3 and X13 Gen 3 also M1.6 × 2.6 mm
- Lenovo ThinkPad X13 2-in-1 Gen 5 also M1.6 × 2.6 mm
Questions about Lenovo ThinkPad 13 2nd Gen / S2 2nd Gen screws
- What size screw does Lenovo ThinkPad 13 2nd Gen / S2 2nd Gen use?
- M1.6 × 2.6 mm for base cover and internal bracket screws.
- How long are the screws in Lenovo ThinkPad 13 2nd Gen / S2 2nd Gen?
- The record gives 2.6 mm. Measure the original from under the head (overall for a countersunk head) to confirm before ordering.
- 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 ThinkPad 13 2nd Gen / S2 2nd Gen?
- The sources do not name the drive. For M1.6, Phillips heads normally take PH00 and Torx heads T4–T5; socket heads take 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.