Eyeglass/spectacle hinge screws screw size
M1.4 · 2.5 to 10 mm long
Our records put Eyeglass/spectacle hinge screws on M1.4 screws in lengths from 2.5 to 10 mm.
The record covers machined spectacle screws explicitly listed as M1.4 x 2.5mm through 10mm length.
This entry is marked confirmed and comes from zoyeglassesparts.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/spectacle hinge screws 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 | 2.5–10 mm | 0.3 mm | not stated | not stated | Machined spectacle screws explicitly listed as M1.4 x 2.5mm through 10mm length | Confirmed |
Fitment records and sources
Machined spectacle screws explicitly listed as M1.4 x 2.5mm through 10mm 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
- Check the strength class stamped on the head (8.8, 10.9, A2-70) and replace like for like.
- 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 records span 2.5–10 mm, which means different positions take different lengths — match each hole to its own screw.
- 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
- 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.
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.
More in Industrial & Machinery
The same screw also fits
Devices whose records share a thread with Eyeglass/spectacle hinge screws, closest length match first.
- NBK SPE-MC PEEK micro pan head screws also M1.4 × 2.5–6 mm
- Miniature precision instrument screws (NBK) also M1.4 × 2.5–10 mm
- Eyeglass spring hinge screw also M1.4 × 6.9 mm
- Eyeglass frame hinge (DIN 963 slotted countersunk) also M1.4 × 3 mm
- Fitbit / fitness band back cover also M1.4 × 2.5 mm
- Eyewire/optical and precision-instrument screws (representative of hearing aid / camera size class) also M1.4 × 3.5–6.8 mm
- Samsung Galaxy M51 (SM-M515F) also M1.4 × 2.5 mm
- MTH model train part also M1.4 × 4 mm
Questions about Eyeglass/spectacle hinge screws screws
- What size screw does Eyeglass/spectacle hinge screws use?
- M1.4 × 2.5–10 mm for machined spectacle screws explicitly listed as M1.4 x 2.5mm through 10mm length.
- How long are the screws in Eyeglass/spectacle hinge screws?
- The records range from 2.5 to 10 mm depending on the position, so match each screw to its own hole.
- 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/spectacle hinge screws?
- 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.