RC micro servo horn (SCX24 / 1/24 scale micro crawler) screw size
M1.4 · 20 mm long
If you are replacing a screw on RC micro servo horn (SCX24 / 1/24 scale micro crawler), the thread is M1.4, 20 mm long.
It is listed for no Superior Designs RC aluminum micro servo horn product page states 'M1.4 threaded hole size for the micro 1/24 scale/ SCX24 stock size hardware', with 1 horn and screw (M1.4) included.
This entry is marked reported and comes from nsdrcscaleparts.com.
M1.4 means a 1.4 mm nominal diameter with a 0.3 mm thread pitch. Imperial look-alike: #0-80 UNF (1.52 mm) — close in diameter, different pitch, do not mix.
RC micro servo horn (SCX24 / 1/24 scale micro crawler) 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 | 20 mm | 0.3 mm | not stated | not stated | No Superior Designs RC aluminum micro servo horn product page states 'M1.4 threaded hole size for the micro 1/24 scale/ SCX24 stock size hardware', with 1 horn and screw (M1.4) included | Reported |
Fitment records and sources
No Superior Designs RC aluminum micro servo horn product page states 'M1.4 threaded hole size for the micro 1/24 scale/ SCX24 stock size hardware', with 1 horn and screw (M1.4) included
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.
- The record states 20 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 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 motor screws differ between M1.4x3mm and M1.6x4mm across BetaFPV/NewBeeDrone product generations — check the exact model.
- M1.4 is below common commodity stock; Mitutoyo sells these as branded service parts rather than generic hardware.
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 Drones, RC & Gimbals
The same screw also fits
Devices whose records share a thread with RC micro servo horn (SCX24 / 1/24 scale micro crawler), closest length match first.
- MTH model train part also M1.4
- Tetra 3 FPV drone frame (sub-250g toothpick/whoop class) also M1.4
- FPV flight-controller / ESC stacks also M1.4
- BetaFPV Meteor/Cetus whoop motor screws also M1.4
- Clock balance cock and pallet screws also M1.4
- Tiny Whoop / micro FPV drone flight controller & ESC mounting screws also M1.4
- Custom FPV whoop-class drone build also M1.4
- Micro/tiny whoop drone motor mounting screws also M1.4
Questions about RC micro servo horn (SCX24 / 1/24 scale micro crawler) screws
- What size screw does RC micro servo horn (SCX24 / 1/24 scale micro crawler) use?
- M1.4 × 20 mm for no Superior Designs RC aluminum micro servo horn product page states 'M1.4 threaded hole size for the micro 1/24 scale/ SCX24 stock size hardware', with 1 horn and screw (M1.4) included.
- How long are the screws in RC micro servo horn (SCX24 / 1/24 scale micro crawler)?
- The record gives 20 mm. Measure the original from under the head (overall for a countersunk head) to confirm before ordering.
- 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 RC micro servo horn (SCX24 / 1/24 scale micro crawler)?
- 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.