Lenovo ThinkPad T14s Gen 3 and X13 Gen 3 screw size
M1.6 / M2 / M2.5 · 2.1 to 3.5 mm long
The screws used on Lenovo ThinkPad T14s Gen 3 and X13 Gen 3 are M1.6, M2 and M2.5 in lengths from 2.1 to 3.5 mm.
There are 5 separate fitment records for it, including internal FRU screw listed in the official Hardware Maintenance Manual screw tables — flat- (M1.6), internal FRU screw listed in the official Hardware Maintenance Manual screw tables — flat- (M1.6) and internal FRU screw listed in the official Hardware Maintenance Manual screw tables — flat- (M2), plus 2 more in the table below.
Head and drive, as the sources state them: flat / countersunk head.
5 of the 5 records are marked confirmed, drawn from 1 source (download.lenovo.com).
An M1.6 screw is 1.6 mm in diameter with a 0.35 mm pitch, tapped with a 1.25 mm drill; imperial look-alike: #1-72 UNF (1.85 mm) is larger; there is no true imperial equivalent.
Lenovo ThinkPad T14s Gen 3 and X13 Gen 3 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 | 2.1 mm | 0.35 mm | Flat / countersunk | not stated | internal FRU screw listed in the official Hardware Maintenance Manual screw tables — flat-head, 2.1mm long | Confirmed |
| M1.6 | 2.6 mm | 0.35 mm | Flat / countersunk | not stated | internal FRU screw listed in the official Hardware Maintenance Manual screw tables — flat-head, 2.6mm long | Confirmed |
| M2 | 2.3 mm | 0.4 mm | Flat / countersunk | not stated | internal FRU screw listed in the official Hardware Maintenance Manual screw tables — flat-head, 2.3mm long | Confirmed |
| M2 | 2.3 mm | 0.4 mm | Flat / countersunk | not stated | internal FRU screw listed in the official Hardware Maintenance Manual screw tables — flat head, 2.3mm long | Confirmed |
| M2.5 | 3.5 mm | 0.45 mm | Flat / countersunk | not stated | internal FRU screw listed in the official Hardware Maintenance Manual screw tables — flat-head, 3.5mm long | Confirmed |
Fitment records and sources
internal FRU screw listed in the official Hardware Maintenance Manual screw tables — flat-head, 2.1mm long
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
internal FRU screw listed in the official Hardware Maintenance Manual screw tables — flat-head, 2.6mm long
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
internal FRU screw listed in the official Hardware Maintenance Manual screw tables — flat-head, 2.3mm long
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
internal FRU screw listed in the official Hardware Maintenance Manual screw tables — flat head, 2.3mm long
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
internal FRU screw listed in the official Hardware Maintenance Manual screw tables — flat-head, 3.5mm long
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 M1.6 screw measures about 1.6 mm with calipers (usually a hair under). This device also uses M2 / M2.5, 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: the source describes a countersunk (flat) head, and those are measured overall, from the top of the head to the tip.
- The records span 2.1–3.5 mm, which means different positions take different lengths — match each hole to its own screw.
- 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.
Common mix-ups with M1.6 / M2 / M2.5
- The standard M.2 SSD screw is M2 x 3mm, but some laptops and handhelds use non-standard lengths or head shapes.
- 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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The same screw also fits
Devices whose records share a thread with Lenovo ThinkPad T14s Gen 3 and X13 Gen 3, closest length match first.
- HP Compaq Presario X1000 also M2.5 × 3.5 mm
- HP Pavilion x360 m3 also M2 × 2.3 mm
- Lenovo ThinkPad T / X / L series also M2.5 × 3.5 mm
- HP Pavilion 16-af0xxx also M2 × 2.3 mm
- Lenovo ThinkPad L460 also M2.5 × 3.5 mm
- Dell Inspiron 14 5410 2-in-1 also M2.5 × 3.5 mm
- HP ENVY x360 13 also M2 × 2.3 mm
- Lenovo ideapad 310-15ABR also M2.5 × 3.5 mm
Questions about Lenovo ThinkPad T14s Gen 3 and X13 Gen 3 screws
- What size screw does Lenovo ThinkPad T14s Gen 3 and X13 Gen 3 use?
- M1.6 × 2.1 mm for internal FRU screw listed in the official Hardware Maintenance Manual screw tables — flat-head, 2.1mm long; M1.6 × 2.6 mm for internal FRU screw listed in the official Hardware Maintenance Manual screw tables — flat-head, 2.6mm long; M2 × 2.3 mm for internal FRU screw listed in the official Hardware Maintenance Manual screw tables — flat-head, 2.3mm long; M2 × 2.3 mm for internal FRU screw listed in the official Hardware Maintenance Manual screw tables — flat head, 2.3mm long; M2.5 × 3.5 mm for internal FRU screw listed in the official Hardware Maintenance Manual screw tables — flat-head, 3.5mm long.
- How long are the screws in Lenovo ThinkPad T14s Gen 3 and X13 Gen 3?
- The records range from 2.1 to 3.5 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 ThinkPad T14s Gen 3 and X13 Gen 3?
- 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.
- Where can I buy replacement screws for Lenovo ThinkPad T14s Gen 3 and X13 Gen 3?
- TechSpareWarehouse (our own store) lists M2 x 2.5mm, which matches the length in the records above.