FPV brushless motors (NewBeeDrone etc.) screw size
M2 · 4 mm long
If you are replacing a screw on FPV brushless motors (NewBeeDrone etc.), the thread is M2, 4 mm long.
The record covers motor mounting screws, standard across most FPV motors.
This entry is marked confirmed and comes from newbeedrone.com.
M2 means a 2 mm nominal diameter with a 0.4 mm thread pitch. Imperial look-alike: #2-56 UNC (2.18 mm) is close but not interchangeable.
FPV brushless motors (NewBeeDrone etc.) 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 |
|---|---|---|---|---|---|---|
| M2 | 4 mm | 0.4 mm | not stated | not stated | motor mounting screws, standard across most FPV motors | Confirmed |
Fitment records and sources
motor mounting screws, standard across most FPV motors
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
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 M2 screw measures about 2 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.4 mm from one thread crest to the next (25 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 4 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 heads take PH0 for Phillips and T6 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 M2 is about 25-40 N·cm into metal threads and 12-20 N·cm into plastic bosses; snug it up and stop.
Common mix-ups with M2
- Drone kits mix M2 (motors) and M2.5 (stack) in the same bag — easy to grab the wrong one.
- Slot car brands also use M2.2 and M2.6 threads that look like M2 but will not interchange - Slot.it M2.2x4.5 motor mount and SCC M2.6x8 body screws are separate sizes.
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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Devices whose records share a thread with FPV brushless motors (NewBeeDrone etc.), closest length match first.
- Micro/whoop FPV drone motors also M2 × 4 mm
- Scaleauto SC-1652 (1/32 slot car) also M2 × 4 mm
- Mechanical clock movement plates also M2 × 4 mm
- Futaba micro servo self-tapping screw also M2 × 4 mm
- FPV freestyle frames (Djinn F25 SP) also M2 × 4 mm
- Vintage radio chassis and dial screws also M2 × 4 mm
- NSR PK guide (1/32 slot car) also M2 × 4 mm
- Dell Latitude D530 also M2 × 4 mm
Questions about FPV brushless motors (NewBeeDrone etc.) screws
- What size screw does FPV brushless motors (NewBeeDrone etc.) use?
- M2 × 4 mm for motor mounting screws, standard across most FPV motors.
- How long are the screws in FPV brushless motors (NewBeeDrone etc.)?
- The record gives 4 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 screw?
- 0.4 mm (coarse), which is the standard pitch for M2 machine screws; a 0.25 mm fine pitch exists but is uncommon. The tap drill is 1.6 mm and the normal clearance hole is 2.4 mm.
- What screwdriver do I need for FPV brushless motors (NewBeeDrone etc.)?
- The sources do not name the drive. For M2, Phillips heads normally take PH0 and Torx heads T6; socket heads take a 1.5 mm hex key.
- Can I use an imperial screw instead of M2?
- No. Imperial look-alike: #2-56 UNC (2.18 mm) is close but not interchangeable. Use a true M2 screw so it does not cross-thread or strip the hole.
- Where can I buy replacement screws for FPV brushless motors (NewBeeDrone etc.)?
- TechSpareWarehouse (our own store) lists M2 x 4mm, which matches the length in the records above.