FPV camera mounts (Caddx and similar) screw size
M2 · length not stated in the sources
Our records put FPV camera mounts (Caddx and similar) on M2 screws. None of the sources we found gives an exact length, so measure the original before you order.
Where it is used: M2 hex screws are the standard FPV camera mounting fastener.
This entry is marked likely and comes from shuntool.com.
An M2 screw is 2 mm in diameter with a 0.4 mm pitch, tapped with a 1.6 mm drill; imperial look-alike: #2-56 UNC (2.18 mm) is close but not interchangeable.
FPV camera mounts (Caddx and similar) 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 | not stated | 0.4 mm | not stated | not stated | M2 hex screws are the standard FPV camera mounting fastener | Likely |
Fitment records and sources
M2 hex screws are the standard FPV camera mounting fastener
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
How to check the screw before you buy
- Do not confuse metric mounting screws with the 1/4-20 or 3/8-16 tripod threads that cameras and clamps also carry.
- 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.
- 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
- Framework 13 and 16 use five thread families (M1.2 to M2.5) with overlapping lengths; buy Framework's own fastener kit rather than generic M2 screws.
- DJI airframes mix 1.5mm/2mm hex and Phillips drives at similar diameters — check the drive type, not just the thread.
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Browse all 278 in Cameras & Optics →The same screw also fits
Devices whose records share a thread with FPV camera mounts (Caddx and similar), closest length match first.
- Raspberry Pi Camera Module also M2
- Basler ace classic industrial camera also M2
- Camera lens focus ring set screw also M2
- SmallRig camera cages and rigs also M2
- DJI Ronin 4D 6K also M2
- SmallRig camera cages, handles, L-plates and accessories also M2
- Eyeglass frame screw (largest ISO spectacle size) also M2
- Partizan / Pilotix PT10 V3 FPV frame also M2
Questions about FPV camera mounts (Caddx and similar) screws
- What size screw does FPV camera mounts (Caddx and similar) use?
- M2 for M2 hex screws are the standard FPV camera mounting fastener.
- How long are the screws in FPV camera mounts (Caddx and similar)?
- 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 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 camera mounts (Caddx and similar)?
- 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.