Watch case back screw (larger cases) screw size
Watch case back screw (larger cases) uses M1.4 screws. Details, length ranges and sources below.
screw-down case back on larger watches such as Longines
pitch 0.3 mm · tap 1.1 mm · clearance 1.6 mm · PH000 / PH00 / Torx T2–T3
Replacement screws for Watch case back screw (larger cases)
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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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