Custom FPV whoop-class drone build screw size
M1.4 · length not stated in the sources
If you are replacing a screw on Custom FPV whoop-class drone build, the thread is M1.4. None of the sources we found gives an exact length, so measure the original before you order.
Where it is used: builder forum thread specifically sourcing M1.4 screws for a custom whoop (sub-250g) frame build.
This entry is marked confirmed and comes from intofpv.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.
Custom FPV whoop-class drone build 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 | Builder forum thread specifically sourcing M1.4 screws for a custom whoop (sub-250g) frame build | Confirmed |
Fitment records and sources
Builder forum thread specifically sourcing M1.4 screws for a custom whoop (sub-250g) frame build
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
- Vibration loosens small screws on drones and RC models, so builders commonly add a drop of medium (blue) threadlocker on metal-to-metal joints — never on plastic.
- 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
- Whoop drone M1.4 comes in steel, PEEK and RENY versions: plastic ones are for cameras, not structural frame use.
- Sellers often list only thread diameter, so an M1.4x3 drone screw and an M1.4x2.3 phone screw look like the same product.
More in Drones, RC & Gimbals
The same screw also fits
Devices whose records share a thread with Custom FPV whoop-class drone build, closest length match first.
- Clock balance cock and pallet screws also M1.4
- Tiny Whoop / micro FPV drone flight controller & ESC mounting screws also M1.4
- Micro/tiny whoop drone motor mounting screws also M1.4
- BETAFPV Meteor/Air series tiny-whoop brushless motor fixing screws also M1.4
- BETAFPV Meteor / Air / Cetus whoops also M1.4
- Micro RC helicopters also M1.4
- DJI Mini 3 / Mini 3 Pro / Mini 4 Pro propellers also M1.4
- Marklin model train part also M1.4
Questions about Custom FPV whoop-class drone build screws
- What size screw does Custom FPV whoop-class drone build use?
- M1.4 for builder forum thread specifically sourcing M1.4 screws for a custom whoop (sub-250g) frame build.
- How long are the screws in Custom FPV whoop-class drone build?
- 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 Custom FPV whoop-class drone build?
- 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.