MKS servo 6mm metal double horn screw size
M2.5 · length not stated in the sources
MKS servo 6mm metal double horn takes M2.5 metric screws. None of the sources we found gives an exact length, so measure the original before you order.
It is listed for servo horn clamp screw (listed screw diameter M2.5).
This entry is marked confirmed and comes from mks-servo.com.
For reference, M2.5 is 2.5 mm across the threads at 0.45 mm pitch. The imperial size people confuse it with: #3-48 / #4-40 (2.51 / 2.84 mm) — #4-40 is the common US stand-in and it will NOT thread in.
MKS servo 6mm metal double horn 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 | not stated | 0.45 mm | not stated | not stated | servo horn clamp screw (listed screw diameter M2.5) | Confirmed |
Fitment records and sources
servo horn clamp screw (listed screw diameter M2.5)
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: 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 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
- M2.5 and M3 look the same to the naked eye — you need calipers on the shank to tell them apart.
- M2.5 pitch is 0.45mm vs M3's 0.5mm and M2's 0.4mm — forcing the wrong one strips plastic bosses instantly.
More in Drones, RC & Gimbals
The same screw also fits
Devices whose records share a thread with MKS servo 6mm metal double horn, closest length match first.
- Raspberry Pi Model A/B mounting holes also M2.5
- Mikado RC helicopter servo mounting screw also M2.5
- Hitec / Futaba RC servo horn also M2.5
- Raspberry Pi Model B+/2/3/4 also M2.5
- Axial Racing crawler/buggy kits also M2.5
- DJI Agras T30 agricultural spray drone motor fixing base also M2.5
- Nerf blaster tool-less thumbscrews also M2.5
- Futaba / Robbe servo horn mounting screws also M2.5
Questions about MKS servo 6mm metal double horn screws
- What size screw does MKS servo 6mm metal double horn use?
- M2.5 for servo horn clamp screw (listed screw diameter M2.5).
- How long are the screws in MKS servo 6mm metal double horn?
- 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 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 MKS servo 6mm metal double horn?
- 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.