Eyeglass hinge / eyewire screw screw size
M1.2 / M1.4 · 2 to 3.8 mm long
The screws used on Eyeglass hinge / eyewire screw are M1.2 and M1.4 in lengths from 2 to 3.8 mm.
There are 2 separate fitment records for it, including hinge barrel and rim tension on plastic frames (M1.2) and stainless screw described as 1.4mm thread diameter x 3.8mm length x 2.5mm head diameter, u (M1.4).
2 of the 2 records are marked confirmed, drawn from 2 sources (standards.iteh.ai and qtena.com).
M1.2 means a 1.2 mm nominal diameter with a 0.25 mm thread pitch. Imperial look-alike: #0-80 UNF (1.52 mm) is the closest imperial screw, but it is bigger — not a substitute.
Eyeglass hinge / eyewire 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 |
|---|---|---|---|---|---|---|
| M1.2 | 2–3 mm | 0.25 mm | not stated | not stated | hinge barrel and rim tension on plastic frames | Confirmed |
| M1.4 | 3.8 mm | 0.3 mm | not stated | not stated | Stainless screw described as 1.4mm thread diameter x 3.8mm length x 2.5mm head diameter, used for eyewires and eyeglass hinges in eyeglass repairstainless | Confirmed |
Fitment records and sources
hinge barrel and rim tension on plastic frames
pitch 0.25 mm · tap 0.95 mm · clearance 1.4 mm · PH000 / JIS 00 / Torx T1–T2
Stainless screw described as 1.4mm thread diameter x 3.8mm length x 2.5mm head diameter, used for eyewires and eyeglass hinges in eyeglass repair
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
- Camera and optics hardware often uses short screws into thin threaded plates, so check engagement before tightening fully.
- Diameter: across the threads an M1.2 screw measures about 1.2 mm with calipers (usually a hair under). This device also uses M1.4, so measure each screw rather than assuming they match.
- Pitch: 0.25 mm from one thread crest to the next (40 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 2–3.8 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source does not name the drive. Standard M1.2 heads take PH000 / JIS 00 for Phillips and T1–T2 for Torx; 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 M1.2 is about 5-8 N·cm into metal threads and 3-5 N·cm into plastic bosses; snug it up and stop.
Common mix-ups with M1.2 / M1.4
- 'Universal' eyeglass kits mislabel diameter vs shaft: a listed 1.2 can measure 1.19-1.3mm between brands.
- M1.2 and M1.4 look identical in an eyeglass repair kit — the wrong one strips soft acetate or metal hinges.
- 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.
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.
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M1.2 x 2mm Phillips Wafer Head Screw for Digital Camera & Micro Robotics - Pack of 50 Black
$4.99 -
M1.2 x 2mm Screws for FPV Drone Build Phillips Wafer Head 10-Pack
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M1.2 x 2mm Replacement Propeller Screws for DJI Neo Drone 10-Pack
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M1.2 x 2mm Phillips Wafer Head Screw for Alienware x16 R2 Laptop Repair - Single Replacement Black
$0.10 each · min. 50
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The same screw also fits
Devices whose records share a thread with Eyeglass hinge / eyewire screw, closest length match first.
- Oakley O Matter / steel frame hinge also M1.4 × 3.8 mm
- Micro FPV / tiny-whoop drones also M1.2 × 2–3 mm
- FPV camera lens mounts also M1.2 × 2–3 mm
- Eyeglass hinge screw (the most common size) also M1.4 × 3.8 mm
- Binocular hinge / bridge also M1.4 × 3.8 mm
- Camera lens grub/set screws (rangefinder & vintage lens mounts) also M1.2 × 2–3 mm
- Sunglasses temple tip / end piece also M1.2 × 2–3 mm
- Eyeglass spring hinge barrel also M1.4 × 3.8 mm
Questions about Eyeglass hinge / eyewire screw screws
- What size screw does Eyeglass hinge / eyewire screw use?
- M1.2 × 2–3 mm for hinge barrel and rim tension on plastic frames; M1.4 × 3.8 mm for stainless screw described as 1.4mm thread diameter x 3.8mm length x 2.5mm head diameter, used for eyewires and eyeglass hinges in eyeglass repair.
- How long are the screws in Eyeglass hinge / eyewire screw?
- The records range from 2 to 3.8 mm depending on the position, so match each screw to its own hole.
- What is the thread pitch of an M1.2 screw?
- 0.25 mm (coarse), which is the standard pitch for M1.2 machine screws. The tap drill is 0.95 mm and the normal clearance hole is 1.4 mm.
- What screwdriver do I need for Eyeglass hinge / eyewire screw?
- The sources do not name the drive. For M1.2, Phillips heads normally take PH000 / JIS 00 and Torx heads T1–T2.
- Can I use an imperial screw instead of M1.2?
- No. Imperial look-alike: #0-80 UNF (1.52 mm) is the closest imperial screw, but it is bigger — not a substitute. Use a true M1.2 screw so it does not cross-thread or strip the hole.
- Where can I buy replacement screws for Eyeglass hinge / eyewire screw?
- TechSpareWarehouse (our own store) lists M1.2 x 2mm, which matches the length in the records above.