Basler ace Classic/U USB 3.0 screw size
M2 · length not stated in the sources
Our records put Basler ace Classic/U USB 3.0 on M2 screws. None of the sources we found gives an exact length, so measure the original before you order.
Where it is used: M2 mounting screws on the camera housing (order of tightening depends on screw size).
This entry is marked confirmed and comes from docs.baslerweb.com.
M2 means a 2 mm nominal diameter with a 0.4 mm thread pitch. Imperial look-alike: #2-56 UNC (2.18 mm) is close but not interchangeable.
Basler ace Classic/U USB 3.0 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 |
|---|---|---|---|---|---|---|
| M2 | not stated | 0.4 mm | not stated | not stated | M2 mounting screws on the camera housing (order of tightening depends on screw size) | Confirmed |
Fitment records and sources
M2 mounting screws on the camera housing (order of tightening depends on screw size).
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
How to check the screw before you buy
- Do not confuse metric mounting screws with the 1/4-20 or 3/8-16 tripod threads that cameras and clamps also carry.
- Diameter: across the threads an M2 screw measures about 2 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.4 mm from one thread crest to the next (25 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 M2 heads take PH0 for Phillips and T6 for Torx, and a 1.5 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 M2 is about 25-40 N·cm into metal threads and 12-20 N·cm into plastic bosses; snug it up and stop.
Common mix-ups with M2
- M2 (2.00mm, 0.4mm pitch) is NOT the same as #2-56 UNC (2.18mm) — close enough to cross-thread and strip if forced.
More in Cameras & Optics
The same screw also fits
Devices whose records share a thread with Basler ace Classic/U USB 3.0, closest length match first.
- Some Nikkor lens mounts also M2
- Basler dart M screw kit (order no. 2200002092) also M2
- Olympus BH-2 / BH2-5RE microscope nosepiece also M2
- DJI O3 Air Unit camera module also M2
- Ophthalmic instrument service hardware (Duclos Lenses) also M2
- Basler dart M industrial camera mount kit also M2
- Olympus BH-2 / MIC-D microscope frame also M2
- Riflescope turret cap also M2
Questions about Basler ace Classic/U USB 3.0 screws
- What size screw does Basler ace Classic/U USB 3.0 use?
- M2 for M2 mounting screws on the camera housing (order of tightening depends on screw size).
- How long are the screws in Basler ace Classic/U USB 3.0?
- 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 M2 screw?
- 0.4 mm (coarse), which is the standard pitch for M2 machine screws; a 0.25 mm fine pitch exists but is uncommon. The tap drill is 1.6 mm and the normal clearance hole is 2.4 mm.
- What screwdriver do I need for Basler ace Classic/U USB 3.0?
- The sources do not name the drive. For M2, Phillips heads normally take PH0 and Torx heads T6; socket heads take a 1.5 mm hex key.
- Can I use an imperial screw instead of M2?
- No. Imperial look-alike: #2-56 UNC (2.18 mm) is close but not interchangeable. Use a true M2 screw so it does not cross-thread or strip the hole.