What size screw does RC model servo mounting use?

M2 × 6–10 mm for servo horns and servo trays on model aircraft.

How long are the screws in RC model servo mounting?

The records range from 6 to 10 mm depending on the position, so match each screw to its own hole.

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 RC model servo mounting?

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 RC model servo mounting?

TechSpareWarehouse (our own store) lists M2 x 6mm and M2 x 8mm, which match lengths in the records above.

RC model servo mounting screw size

M2 · 6 to 10 mm long

If you are replacing a screw on RC model servo mounting, the thread is M2 in lengths from 6 to 10 mm.

It is listed for servo horns and servo trays on model aircraft.

This entry is marked reported.

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.

RC model servo mounting 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	6–10 mm	0.4 mm	not stated	not stated	Servo horns and servo trays on model aircraft	Reported

Fitment records and sources

M26-10mmreported

Servo horns and servo trays on model aircraft

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 records span 6–10 mm, which means different positions take different lengths — match each hole to its own screw.
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

M2 (2.00mm, 0.4mm pitch) is NOT the same as #2-56 UNC (2.18mm) — close enough to cross-thread and strip if forced.

Pitch gauge · Screw size finder · Torque guide

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 RC model servo mounting, closest length match first.

E-flite Gee Bee R-2 wing connector screws also M2 × 8 mm
Axial SCX10 III RC crawler chassis also M2 × 6–10 mm
Vintage radio chassis and dial screws also M2 × 6–10 mm
FPV flight controller stack 20x20mm also M2 × 7–10 mm
Arcade marquee retainers also M2 × 6–10 mm
FPV freestyle frames (Djinn F25 SP) also M2 × 6–10 mm
Micro/whoop FPV drone motors also M2 × 6 mm
Tamiya 3-piece front wheels also M2 × 8 mm

Questions about RC model servo mounting screws

What size screw does RC model servo mounting use?: M2 × 6–10 mm for servo horns and servo trays on model aircraft.
How long are the screws in RC model servo mounting?: The records range from 6 to 10 mm depending on the position, so match each screw to its own hole.
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 RC model servo mounting?: 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 RC model servo mounting?: TechSpareWarehouse (our own store) lists M2 x 6mm and M2 x 8mm, which match lengths in the records above.

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