Eyeglass/precision hinge screws (also used in small electronics/headphone hinges) screw size
M1.4 · 4.8 mm long
Eyeglass/precision hinge screws (also used in small electronics/headphone hinges) takes M1.4 metric screws, 4.8 mm long.
It is listed for 1.4mm thread diameter stainless Phillips hinge screw, 4.8mm length, 1.9mm head, sold for hinges & eyewires.
Head and drive, as the source states them: Phillips drive.
This entry is marked confirmed and comes from qtena.com.
For reference, M1.4 is 1.4 mm across the threads at 0.3 mm pitch. The imperial size people confuse it with: #0-80 UNF (1.52 mm) — close in diameter, different pitch, do not mix.
Eyeglass/precision hinge screws (also used in small electronics/headphone hinges) 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 |
|---|---|---|---|---|---|---|
| M1.4 | 4.8 mm | 0.3 mm | not stated | Phillips | 1.4mm thread diameter stainless Phillips hinge screw, 4.8mm length, 1.9mm head, sold for hinges & eyewiresstainless | Confirmed |
Fitment records and sources
1.4mm thread diameter stainless Phillips hinge screw, 4.8mm length, 1.9mm head, sold for hinges & eyewires
pitch 0.3 mm · tap 1.1 mm · clearance 1.6 mm · PH000 / PH00 / Torx T2–T3
How to check the screw before you buy
- Over-long screws in phones are a known cause of damaged boards (Apple's 'long screw damage'), so never swap positions.
- Diameter: across the threads an M1.4 screw measures about 1.4 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.3 mm from one thread crest to the next (33.33 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 record states 4.8 mm. Going longer risks bottoming out or touching parts behind the hole; going shorter loses thread engagement.
- Driver: the source names a Phillips drive. For comparison, standard M1.4 heads take PH000 / PH00 (Phillips) or T2–T3 (Torx), or a 1.3 mm hex key.
- Tightening: no device-specific torque is published in these records. The site's general figure for M1.4 is about 8-12 N·cm into metal threads and 4-7 N·cm into plastic bosses; snug it up and stop.
Common mix-ups with M1.4
- Sellers often list only thread diameter, so an M1.4x3 drone screw and an M1.4x2.3 phone screw look like the same product.
- Phone guides describe screws by Torx bit size (T3/T4/T5) rather than thread; M1.4-M1.6 is inferred from shaft diameter, not stated by the maker.
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Devices whose records share a thread with Eyeglass/precision hinge screws (also used in small electronics/headphone hinges), closest length match first.
- Miniature precision instrument screws (NBK) also M1.4 × 4.8 mm
- Fairphone 2 / 3 / 4 internal screws also M1.4 × 4.8 mm
- Miniature plastic machine screw (RENY) marketed for micro-precision assemblies including hearing-aid-scale hardware also M1.4 × 4.8 mm
- Eyewire/optical and precision-instrument screws (representative of hearing aid / camera size class) also M1.4 × 4.8 mm
- Eyeglass/spectacle hinge screws also M1.4 × 4.8 mm
- Eyeglass hinge screw (internal thread spec) also M1.4 × 4.8 mm
- NBK SSCZS miniature captive screw for precision instruments also M1.4 × 4.8 mm
- FPV flight-controller / ESC stacks also M1.4 × 4.8 mm
Questions about Eyeglass/precision hinge screws (also used in small electronics/headphone hinges) screws
- What size screw does Eyeglass/precision hinge screws (also used in small electronics/headphone hinges) use?
- M1.4 × 4.8 mm for 1.4mm thread diameter stainless Phillips hinge screw, 4.8mm length, 1.9mm head, sold for hinges & eyewires.
- How long are the screws in Eyeglass/precision hinge screws (also used in small electronics/headphone hinges)?
- The record gives 4.8 mm. Measure the original from under the head (overall for a countersunk head) to confirm before ordering.
- What is the thread pitch of an M1.4 screw?
- 0.3 mm (coarse), which is the standard pitch for M1.4 machine screws. The tap drill is 1.1 mm and the normal clearance hole is 1.6 mm.
- What screwdriver do I need for Eyeglass/precision hinge screws (also used in small electronics/headphone hinges)?
- The source lists a Phillips drive. Standard M1.4 heads otherwise take PH000 / PH00 (Phillips) or T2–T3 (Torx), or a 1.3 mm hex key.
- Can I use an imperial screw instead of M1.4?
- No. Imperial look-alike: #0-80 UNF (1.52 mm) — close in diameter, different pitch, do not mix. Use a true M1.4 screw so it does not cross-thread or strip the hole.