Eyeglasses/optical hinge screws (also used in miniature electronics) screw size
M1.2 · 8.7 mm long
If you are replacing a screw on Eyeglasses/optical hinge screws (also used in miniature electronics), the thread is M1.2, 8.7 mm long.
It is listed for tabco Optical catalog lists Phillips small-head screw, thread M1.2 (1.2mm), 2.0mm head, 8.7mm length, stainless steel.
Head and drive, as the source states them: Phillips drive.
This entry is marked confirmed and comes from tabcooptical.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.
Eyeglasses/optical hinge screws (also used in miniature electronics) 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 | 8.7 mm | 0.25 mm | not stated | Phillips | Tabco Optical catalog lists Phillips small-head screw, thread M1.2 (1.2mm), 2.0mm head, 8.7mm length, stainless steelstainless | Confirmed |
Fitment records and sources
Tabco Optical catalog lists Phillips small-head screw, thread M1.2 (1.2mm), 2.0mm head, 8.7mm length, stainless steel
pitch 0.25 mm · tap 0.95 mm · clearance 1.4 mm · PH000 / JIS 00 / Torx T1–T2
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). If yours measures noticeably more or less, it is a different thread.
- 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 record states 8.7 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 M1.2 heads take PH000 / JIS 00 (Phillips) or T1–T2 (Torx).
- 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
- M1.2 and M1.4 look identical in an eyeglass repair kit — the wrong one strips soft acetate or metal hinges.
More in Cameras & Optics
The same screw also fits
Devices whose records share a thread with Eyeglasses/optical hinge screws (also used in miniature electronics), closest length match first.
- Eyeglass frame hinge/temple screws (industry standard) also M1.2 × 8.7 mm
- NBK SSCZS pan-head captive miniature screw for precision instruments also M1.2 × 8.7 mm
- Small-head precision screw ('eyewire' screw stock, reused generically in tiny-device repair) also M1.2 × 8.7 mm
- Eyeglass small-head Phillips screw also M1.2 × 8.7 mm
- Watch strap fixing bar screw also M1.2 × 8.7 mm
- Spectacle frame hinge/temple screws (ISO 11381 standard) also M1.2
- DSLR & mirrorless cameras also M1.2
- HP 8569B Spectrum Analyzer (Laboratory/Imaging) also M1.2
Questions about Eyeglasses/optical hinge screws (also used in miniature electronics) screws
- What size screw does Eyeglasses/optical hinge screws (also used in miniature electronics) use?
- M1.2 × 8.7 mm for tabco Optical catalog lists Phillips small-head screw, thread M1.2 (1.2mm), 2.0mm head, 8.7mm length, stainless steel.
- How long are the screws in Eyeglasses/optical hinge screws (also used in miniature electronics)?
- The record gives 8.7 mm. Measure the original from under the head (overall for a countersunk head) to confirm before ordering.
- What is the thread pitch of an M1.2 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 Eyeglasses/optical hinge screws (also used in miniature electronics)?
- The source lists a Phillips drive. Standard M1.2 heads otherwise take PH000 / JIS 00 (Phillips) or T1–T2 (Torx).
- 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.