How long are the screws in FPV carbon frame arms and standoffs?

The records range from 6 to 25 mm depending on the position, so match each screw to its own hole.

What is the thread pitch of an M3 screw?

0.5 mm (coarse), which is the standard pitch for M3 machine screws; a 0.35 mm fine pitch exists but is uncommon. The tap drill is 2.5 mm and the normal clearance hole is 3.4 mm.

What screwdriver do I need for FPV carbon frame arms and standoffs?

The sources do not name the drive. For M3, Phillips heads normally take PH1 and Torx heads T10; socket heads take a 2.5 mm hex key.

Can I use an imperial screw instead of M3?

No. Imperial look-alike: #5-40 (3.18 mm) or #4-40 — neither interchanges with M3. Use a true M3 screw so it does not cross-thread or strip the hole.

Where can I buy replacement screws for FPV carbon frame arms and standoffs?

TechSpareWarehouse (our own store) lists M3 x 6mm, M3 x 8mm and M3 x 10mm, which match lengths in the records above.

FPV carbon frame arms and standoffs screw size

M3 · 6 to 25 mm long

If you are replacing a screw on FPV carbon frame arms and standoffs, the thread is M3 in lengths from 6 to 25 mm.

Where it is used: arm-to-frame bolts and standoffs on 5-inch race/freestyle frames.

This entry is marked reported and comes from cncdrones.com.

An M3 screw is 3 mm in diameter with a 0.5 mm pitch, tapped with a 2.5 mm drill; imperial look-alike: #5-40 (3.18 mm) or #4-40 — neither interchanges with M3.

FPV carbon frame arms and standoffs 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
M3	6–25 mm	0.5 mm	not stated	not stated	Arm-to-frame bolts and standoffs on 5-inch race/freestyle frames	Reported

Fitment records and sources

M36-25mmreported

Arm-to-frame bolts and standoffs on 5-inch race/freestyle frames

pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10

Source

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 M3 screw measures about 3 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
Pitch: 0.5 mm from one thread crest to the next (20 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 6–25 mm, which means different positions take different lengths — match each hole to its own screw.
Driver: the source does not name the drive. Standard M3 heads take PH1 for Phillips and T10 for Torx, and a 2.5 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 M3 is about 80-130 N·cm into metal threads and 35-60 N·cm into plastic bosses; snug it up and stop.

Common mix-ups with M3

PC cases mix M3 (fans, optical and 2.5in drives) with imperial 6-32 (3.5in drives, motherboard standoffs) - don't force one into the other.
ATX motherboard standoffs and PCI bracket screws are 6-32 UNC by standard; M3 appears only on some metric-drilled cases.

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 FPV carbon frame arms and standoffs, closest length match first.

Futaba standard servo horn screw also M3 × 8 mm
FPV flight-controller / ESC stacks also M3 × 6–25 mm
E-flite Gee Bee R-2 1.0m wing securing screws also M3 × 25 mm
GetFPV anti-vibration FC standoff 7mm also M3 × 7 mm
Pinball playfield insert hardware (metric) also M3 × 6–12 mm
Drone motors (2205-2306 class) also M3 × 6–8 mm
ImpulseRC Apex EVO FPV frame also M3 × 6–12 mm
Drone frame arms also M3 × 8–16 mm

Questions about FPV carbon frame arms and standoffs screws

What size screw does FPV carbon frame arms and standoffs use?: M3 × 6–25 mm for arm-to-frame bolts and standoffs on 5-inch race/freestyle frames.
How long are the screws in FPV carbon frame arms and standoffs?: The records range from 6 to 25 mm depending on the position, so match each screw to its own hole.
What is the thread pitch of an M3 screw?: 0.5 mm (coarse), which is the standard pitch for M3 machine screws; a 0.35 mm fine pitch exists but is uncommon. The tap drill is 2.5 mm and the normal clearance hole is 3.4 mm.
What screwdriver do I need for FPV carbon frame arms and standoffs?: The sources do not name the drive. For M3, Phillips heads normally take PH1 and Torx heads T10; socket heads take a 2.5 mm hex key.
Can I use an imperial screw instead of M3?: No. Imperial look-alike: #5-40 (3.18 mm) or #4-40 — neither interchanges with M3. Use a true M3 screw so it does not cross-thread or strip the hole.
Where can I buy replacement screws for FPV carbon frame arms and standoffs?: TechSpareWarehouse (our own store) lists M3 x 6mm, M3 x 8mm and M3 x 10mm, which match lengths in the records above.

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