Lenovo ThinkPad T14 Gen 5 / P14s bottom cover screw size
M2.5 · 3.5 mm long
The screws used on Lenovo ThinkPad T14 Gen 5 / P14s bottom cover are M2.5, 3.5 mm long.
The record covers nylon-coated flat-head screws, torque spec 0.29 Nm.
Head and drive, as the source states them: flat / countersunk head.
This entry is marked confirmed and comes from manualslib.com.
For reference, M2.5 is 2.5 mm across the threads at 0.45 mm pitch. The imperial size people confuse it with: #3-48 / #4-40 (2.51 / 2.84 mm) — #4-40 is the common US stand-in and it will NOT thread in.
Lenovo ThinkPad T14 Gen 5 / P14s bottom cover screw specifications
One row per fitment record. Head, drive and torque are shown only where the source states them; pitch is the ISO coarse pitch for the thread.
| Thread | Length | Pitch | Head | Drive | Torque | Where it goes | Status |
|---|---|---|---|---|---|---|---|
| M2.5 | 3.5 mm | 0.45 mm | Flat / countersunk | not stated | 0.29 Nm | nylon-coated flat-head screws, torque spec 0.29 Nmthread-locking patch | Confirmed |
Fitment records and sources
nylon-coated flat-head screws, torque spec 0.29 Nm
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 M2.5 screw measures about 2.5 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.45 mm from one thread crest to the next (22.22 crests per centimetre). A thread pitch gauge or the pitch-gauge tool settles it in seconds.
- Length: the source describes a countersunk (flat) head, and those are measured overall, from the top of the head to the tip.
- The record states 3.5 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 M2.5 heads take PH1 for Phillips and T8 for Torx, and a 2 mm hex key for socket heads; a bit that fits loosely will cam out and strip the head.
Common mix-ups with M2.5
- Nylon-coated M2.5 screws (ThinkPad Edge) are thread-locking; plain replacements work loose over time.
- Dell/HP/Lenovo manuals often list screws only by torque or head shape, so community teardowns are needed for diameter.
More in Laptops & PCs
The same screw also fits
Devices whose records share a thread with Lenovo ThinkPad T14 Gen 5 / P14s bottom cover, closest length match first.
- HP 346 G4 also M2.5 × 3.5 mm
- Dell Inspiron 13 5391 Wifi also M2.5 × 3.5 mm
- Lenovo ThinkPad P15 Gen 1 also M2.5 × 3.5 mm
- Lenovo IdeaPad Z380 also M2.5 × 3.5 mm
- Lenovo ideapad 310-14IKB also M2.5 × 3.5 mm
- Dell Inspiron 14 7415 2-in-1 also M2.5 × 3.5 mm
- HP 346 G3 also M2.5 × 3.5 mm
- HP Fortis 11 G10 also M2.5 × 3.5 mm
Questions about Lenovo ThinkPad T14 Gen 5 / P14s bottom cover screws
- What size screw does Lenovo ThinkPad T14 Gen 5 / P14s bottom cover use?
- M2.5 × 3.5 mm for nylon-coated flat-head screws, torque spec 0.29 Nm.
- How long are the screws in Lenovo ThinkPad T14 Gen 5 / P14s bottom cover?
- The record gives 3.5 mm. Measure the original from under the head (overall for a countersunk head) to confirm before ordering.
- What is the thread pitch of an M2.5 screw?
- 0.45 mm (coarse), which is the standard pitch for M2.5 machine screws; a 0.35 mm fine pitch exists but is uncommon. The tap drill is 2.05 mm and the normal clearance hole is 2.9 mm.
- What screwdriver do I need for Lenovo ThinkPad T14 Gen 5 / P14s bottom cover?
- The sources do not name the drive. For M2.5, Phillips heads normally take PH1 and Torx heads T8; socket heads take a 2 mm hex key.
- Can I use an imperial screw instead of M2.5?
- No. Imperial look-alike: #3-48 / #4-40 (2.51 / 2.84 mm) — #4-40 is the common US stand-in and it will NOT thread in. Use a true M2.5 screw so it does not cross-thread or strip the hole.
- How tight should the M2.5 screw on Lenovo ThinkPad T14 Gen 5 / P14s bottom cover be?
- The source gives 0.29 Nm for nylon-coated flat-head screws, torque spec 0.29 Nm.