FPV flight-controller / ESC stacks screw size
FPV flight-controller / ESC stacks uses M1.4 / M3 screws. Details, length ranges and sources below.
stack mounting bolts on 1S and 2S micro builds
pitch 0.3 mm · tap 1.1 mm · clearance 1.6 mm · PH000 / PH00 / Torx T2–T3
the 30.5x30.5mm and 20x20mm stack patterns are M3
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
Replacement screws for FPV flight-controller / ESC stacks
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- Buy on AmazonKits and single sizes, with reviews naming real devices
- Buy on eBayOEM screw sets and repair-parts sellers
- M1.4 screw assortment kitBoxed kit with several lengths — the cheapest way to cover one thread size
- M1.4 socket cap screwsISO 4762 / DIN 912 hex-drive, the engineering default
- M1.4 low profile / button headFor clearance-limited repairs and thin covers
- M1.4 standoffs & spacersPCB and board-mount hardware in the same thread
- M1.4 tap & drillFor cutting or chasing a damaged thread
- Precision driver setSmall threads need a properly fitting bit or you cam out and round the head
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