Watch/smartwatch strap screw pin screw size
M1.4 · length not stated in the sources
Our records put Watch/smartwatch strap screw pin on M1.4 screws. None of the sources we found gives an exact length, so measure the original before you order.
The record covers retail listing titled explicitly 'RLX BAND SCREW PIN M1.4' for a threaded band screw-pin used to attach a bracelet to lugs; M1.4 stated directly in the product name/title.
This entry is marked reported and comes from sdemanuele.com.
For reference, M1.4 is 1.4 mm across the threads at 0.3 mm pitch. The imperial size people confuse it with: #0-80 UNF (1.52 mm) — close in diameter, different pitch, do not mix.
Watch/smartwatch strap screw pin 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 |
|---|---|---|---|---|---|---|
| M1.4 | not stated | 0.3 mm | not stated | not stated | Retail listing titled explicitly 'RLX BAND SCREW PIN M1.4' for a threaded band screw-pin used to attach a bracelet to lugs; M1.4 stated directly in the product name/title | Reported |
Fitment records and sources
Retail listing titled explicitly 'RLX BAND SCREW PIN M1.4' for a threaded band screw-pin used to attach a bracelet to lugs; M1.4 stated directly in the product name/title.
pitch 0.3 mm · tap 1.1 mm · clearance 1.6 mm · PH000 / PH00 / Torx T2–T3
How to check the screw before you buy
- Over-long screws in phones are a known cause of damaged boards (Apple's 'long screw damage'), so never swap positions.
- Diameter: across the threads an M1.4 screw measures about 1.4 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.3 mm from one thread crest to the next (33.33 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.
- Driver: the source does not name the drive. Standard M1.4 heads take PH000 / PH00 for Phillips and T2–T3 for Torx, and a 1.3 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 M1.4 is about 8-12 N·cm into metal threads and 4-7 N·cm into plastic bosses; snug it up and stop.
Common mix-ups with M1.4
- Phone guides describe screws by Torx bit size (T3/T4/T5) rather than thread; M1.4-M1.6 is inferred from shaft diameter, not stated by the maker.
- Whoop motor screws differ between M1.4x3mm and M1.6x4mm across BetaFPV/NewBeeDrone product generations — check the exact model.
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 Phones, Tablets & Wearables
The same screw also fits
Devices whose records share a thread with Watch/smartwatch strap screw pin, closest length match first.
- Watch casebacks & dials also M1.4
- Fairphone 2 / 3 / 4 internal screws also M1.4
- Samsung Galaxy S23 screen/battery assembly also M1.4
- Samsung Galaxy S23 board screws also M1.4
- Apple Watch case screws also M1.4
- Valve Steam Deck / general small-electronics reference chart also M1.4
- Watch bracelet link pin (screw-pin type) also M1.4
- Sennheiser MOMENTUM M2 On-Ear headphone also M1.4
Questions about Watch/smartwatch strap screw pin screws
- What size screw does Watch/smartwatch strap screw pin use?
- M1.4 for retail listing titled explicitly 'RLX BAND SCREW PIN M1.4' for a threaded band screw-pin used to attach a bracelet to lugs; M1.4 stated directly in the product name/title.
- How long are the screws in Watch/smartwatch strap screw pin?
- None of the sources states a length. Remove one screw and measure it from under the head to the tip (overall for a countersunk head).
- What is the thread pitch of an M1.4 screw?
- 0.3 mm (coarse), which is the standard pitch for M1.4 machine screws. The tap drill is 1.1 mm and the normal clearance hole is 1.6 mm.
- What screwdriver do I need for Watch/smartwatch strap screw pin?
- The sources do not name the drive. For M1.4, Phillips heads normally take PH000 / PH00 and Torx heads T2–T3; socket heads take a 1.3 mm hex key.
- Can I use an imperial screw instead of M1.4?
- No. Imperial look-alike: #0-80 UNF (1.52 mm) — close in diameter, different pitch, do not mix. Use a true M1.4 screw so it does not cross-thread or strip the hole.


