Eyeglass spring hinge screw screw size
M1.4 · 6.9 mm long
Our records put Eyeglass spring hinge screw on M1.4 screws, 6.9 mm long.
The record covers self-aligning spring hinge screw, 1.4mm thread, 2.0mm head, 6.9mm overall length.
This entry is marked confirmed and comes from tabcooptical.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 spring hinge screw 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 | 6.9 mm | 0.3 mm | not stated | not stated | Self-aligning spring hinge screw, 1.4mm thread, 2.0mm head, 6.9mm overall length | Confirmed |
Fitment records and sources
Self-aligning spring hinge screw, 1.4mm thread, 2.0mm head, 6.9mm overall length
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
- If the hinge barrel is stripped, an oversize or self-tapping repair screw is the usual fix rather than the original size.
- 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 6.9 mm. Going longer risks bottoming out or touching parts behind the hole; going shorter loses thread engagement.
- Driver: the source does not name the drive. Standard M1.4 heads take PH000 / PH00 for Phillips and T2–T3 for Torx, and a 1.3 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 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
- Eyewear screws are named thread x shaft x length, a different convention from ISO metric naming — easy to order wrong.
- M1.4 is THE Samsung Galaxy internal screw across S, A, M and Note lines — but lengths run 2.3mm to 4mm+ and are not interchangeable between models.
More in Eyewear
The same screw also fits
Devices whose records share a thread with Eyeglass spring hinge screw, closest length match first.
- Miniature precision instrument screws (NBK) also M1.4 × 6.9 mm
- Eyeglass/spectacle hinge screws also M1.4 × 6.9 mm
- FPV flight-controller / ESC stacks also M1.4 × 6.9 mm
- NBK SSCZS miniature captive screw for precision instruments also M1.4 × 6.9 mm
- Tiny Whoop / micro FPV drone flight controller & ESC mounting screws also M1.4 × 6.9 mm
- Self-aligning spring hinge screw (Tabco Optical) also M1.4 × 6.9 mm
- Binocular hinge / bridge also M1.4 × 6.9 mm
- DIN 912 socket-head cap screw (smallest size) also M1.4 × 6.9 mm
Questions about Eyeglass spring hinge screw screws
- What size screw does Eyeglass spring hinge screw use?
- M1.4 × 6.9 mm for self-aligning spring hinge screw, 1.4mm thread, 2.0mm head, 6.9mm overall length.
- How long are the screws in Eyeglass spring hinge screw?
- The record gives 6.9 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 spring hinge screw?
- The sources do not name the drive. For M1.4, Phillips heads normally take PH000 / PH00 and Torx heads T2–T3; socket heads take 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.