Newport MM-050-HEX-M platform optical mount screw size
M3 · length not stated in the sources
If you are replacing a screw on Newport MM-050-HEX-M platform optical mount, the thread is M3. None of the sources we found gives an exact length, so measure the original before you order.
The record covers M3 hex adjustment screws give plus/minus 11 degrees of tilt.
This entry is marked confirmed and comes from newport.com.
M3 means a 3 mm nominal diameter with a 0.5 mm thread pitch. Imperial look-alike: #5-40 (3.18 mm) or #4-40 — neither interchanges with M3.
Newport MM-050-HEX-M platform optical mount 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 |
|---|---|---|---|---|---|---|
| M3 | not stated | 0.5 mm | not stated | not stated | M3 hex adjustment screws give plus/minus 11 degrees of tilt | Confirmed |
Fitment records and sources
M3 hex adjustment screws give plus/minus 11 degrees of tilt
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
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 M3 screw measures about 3 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.5 mm from one thread crest to the next (20 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.
- Driver: the source does not name the drive. Standard M3 heads take PH1 for Phillips and T10 for Torx, and a 2.5 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 M3 is about 80-130 N·cm into metal threads and 35-60 N·cm into plastic bosses; snug it up and stop.
Common mix-ups with M3
- Many gas-detector and sensor manuals only give a torque spec (e.g. '0.5 N·m max') without repeating the thread size at every mention — the explicit M3 callout is usually only in the accessories/spare-parts table, not the main installation steps.
- PC cases mix M3 (fans, optical and 2.5in drives) with imperial 6-32 (3.5in drives, motherboard standoffs) - don't force one into the other.
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Devices whose records share a thread with Newport MM-050-HEX-M platform optical mount, closest length match first.
- Celestron EdgeHD 8" OTA secondary mirror collimation screws also M3
- Aimpoint Micro T-1/T-2/H-1/H-2 standard mount also M3
- Edmund Optics 30mm Universal Cage Plate also M3
- Celestron 1.25" 2x Ultima Barlow ('shorty', 1999) retaining screw also M3
- Basler ace 2 / racer 2 S camera body mounting screws also M3
- Celestron EdgeHD 11" OTA secondary mirror collimation screws also M3
- Celestron C8 Schmidt-Cassegrain OTA secondary mirror collimation screws also M3
- Arca-style quick-release plate also M3
Questions about Newport MM-050-HEX-M platform optical mount screws
- What size screw does Newport MM-050-HEX-M platform optical mount use?
- M3 for M3 hex adjustment screws give plus/minus 11 degrees of tilt.
- How long are the screws in Newport MM-050-HEX-M platform optical mount?
- None of the sources states a length. Remove one screw and measure it from under the head to the tip (overall for a countersunk head).
- What is the thread pitch of an M3 screw?
- 0.5 mm (coarse), which is the standard pitch for M3 machine screws; a 0.35 mm fine pitch exists but is uncommon. The tap drill is 2.5 mm and the normal clearance hole is 3.4 mm.
- What screwdriver do I need for Newport MM-050-HEX-M platform optical mount?
- The sources do not name the drive. For M3, Phillips heads normally take PH1 and Torx heads T10; socket heads take a 2.5 mm hex key.
- Can I use an imperial screw instead of M3?
- No. Imperial look-alike: #5-40 (3.18 mm) or #4-40 — neither interchanges with M3. Use a true M3 screw so it does not cross-thread or strip the hole.