E-flite Gee Bee R-2 aileron servo cover screw size
M2.5 · 10 mm long
Our records put E-flite Gee Bee R-2 aileron servo cover on M2.5 screws, 10 mm long.
There are 2 separate fitment records for it, including flathead self-tapping screws for servo covers (M2.5) and M2.5 x 10mm flat-head self-tapping screws for the aileron servo cover (M2.5).
Head and drive, as the sources state them: flat / countersunk head.
2 of the 2 records are marked confirmed, drawn from 1 source (horizonhobby.com).
An M2.5 screw is 2.5 mm in diameter with a 0.45 mm pitch, tapped with a 2.05 mm drill; imperial look-alike: #3-48 / #4-40 (2.51 / 2.84 mm) — #4-40 is the common US stand-in and it will NOT thread in.
E-flite Gee Bee R-2 aileron servo cover 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 |
|---|---|---|---|---|---|---|
| M2.5 | 10 mm | 0.45 mm | not stated | not stated | Flathead self-tapping screws for servo coversself-tapping / thread-forming | Confirmed |
| M2.5 | 10 mm | 0.45 mm | Flat / countersunk | not stated | M2.5 x 10mm flat-head self-tapping screws for the aileron servo coverself-tapping / thread-forming | Confirmed |
Fitment records and sources
Flathead self-tapping screws for servo covers
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
M2.5 x 10mm flat-head self-tapping screws for the aileron servo cover
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
How to check the screw before you buy
- Frame and motor screws must not reach the motor windings; check the length against the motor's mounting depth.
- Diameter: across the threads an M2.5 screw measures about 2.5 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.45 mm from one thread crest to the next (22.22 crests per centimetre). A thread pitch gauge or the pitch-gauge tool settles it in seconds.
- Length: the source describes a countersunk (flat) head, and those are measured overall, from the top of the head to the tip.
- The record states 10 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 M2.5 heads take PH1 for Phillips and T8 for Torx, and a 2 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 M2.5 is about 45-70 N·cm into metal threads and 20-35 N·cm into plastic bosses; snug it up and stop.
Common mix-ups with M2.5
- Projector optics and fan screws often step down to M2.5 while the outer covers use M3 - do not reuse cover screws inside the light engine.
- M2.5 pitch is 0.45mm vs M3's 0.5mm and M2's 0.4mm — forcing the wrong one strips plastic bosses instantly.
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 E-flite Gee Bee R-2 aileron servo cover, closest length match first.
- Drone remote controller internals also M2.5 × 10 mm
- Raspberry Pi (Model B+ through Pi 4/Pi 5 form factor boards) also M2.5 × 10 mm
- Sewing machine needle plate also M2.5 × 10 mm
- PowerVision PowerRay underwater drone also M2.5 × 10 mm
- Antique wall clock pendulum brackets also M2.5 × 10 mm
- Axial SCX10 III RC crawler, countersunk and cap screws also M2.5 × 10 mm
- Traxxas E-Revo (TRA2523/TRX3229) also M2.5 × 10 mm
- Axial Racing crawler/buggy kits also M2.5 × 10 mm
Questions about E-flite Gee Bee R-2 aileron servo cover screws
- What size screw does E-flite Gee Bee R-2 aileron servo cover use?
- M2.5 × 10 mm for flathead self-tapping screws for servo covers; M2.5 × 10 mm for M2.5 x 10mm flat-head self-tapping screws for the aileron servo cover.
- How long are the screws in E-flite Gee Bee R-2 aileron servo cover?
- The record gives 10 mm. Measure the original from under the head (overall for a countersunk head) to confirm before ordering.
- What is the thread pitch of an M2.5 screw?
- 0.45 mm (coarse), which is the standard pitch for M2.5 machine screws; a 0.35 mm fine pitch exists but is uncommon. The tap drill is 2.05 mm and the normal clearance hole is 2.9 mm.
- What screwdriver do I need for E-flite Gee Bee R-2 aileron servo cover?
- The sources do not name the drive. For M2.5, Phillips heads normally take PH1 and Torx heads T8; socket heads take a 2 mm hex key.
- Can I use an imperial screw instead of M2.5?
- No. Imperial look-alike: #3-48 / #4-40 (2.51 / 2.84 mm) — #4-40 is the common US stand-in and it will NOT thread in. Use a true M2.5 screw so it does not cross-thread or strip the hole.
- Where can I buy replacement screws for E-flite Gee Bee R-2 aileron servo cover?
- TechSpareWarehouse (our own store) lists M2.5 x 10mm, which matches the length in the records above.