Cognex In-Sight 9000 machine vision system screw size
M4 · 3 to 8 mm long
If you are replacing a screw on Cognex In-Sight 9000 machine vision system, the thread is M4 in lengths from 3 to 8 mm.
It is listed for housing mounting screws — max insertion 8mm rear, 3mm near lens, 4.5mm near connectors.
This entry is marked confirmed and comes from docs.cognex.com.
For reference, M4 is 4 mm across the threads at 0.7 mm pitch. The imperial size people confuse it with: #8-32 (4.17 mm) — the standard US PC/rack screw, close but not the same.
Cognex In-Sight 9000 machine vision system 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 |
|---|---|---|---|---|---|---|
| M4 | 3–8 mm | 0.7 mm | not stated | not stated | housing mounting screws — max insertion 8mm rear, 3mm near lens, 4.5mm near connectors | Confirmed |
Fitment records and sources
housing mounting screws — max insertion 8mm rear, 3mm near lens, 4.5mm near connectors
pitch 0.7 mm · tap 3.3 mm · clearance 4.5 mm · PH2 / Torx T20
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 M4 screw measures about 4 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.7 mm from one thread crest to the next (14.29 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 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 M4 heads take PH2 for Phillips and T20 for Torx, and a 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 M4 is about 2.0-3.0 N·m into metal threads and 0.8-1.4 N·m into plastic bosses; snug it up and stop.
Common mix-ups with M4
- Water heater elements use pipe threads (NPSM/NPT), not metric machine screws.
- Bopla SHR-Z boss screws and Hammond 1591XXF screws look metric but are self-tapping/imperial — don't substitute a machine screw into those bosses.
More in Cameras & Optics
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Browse all 278 in Cameras & Optics →The same screw also fits
Devices whose records share a thread with Cognex In-Sight 9000 machine vision system, closest length match first.
- DJI RS upper quick-release plate also M4 × 6–8 mm
- Dashcam / action-cam suction mount ball joint also M4 × 6–8 mm
- Celestron collimation screws, C8/C9.25/C11 SCT optical tubes also M4 × 8 mm
- Telescope finder-scope shoe / base (TS-Optics) also M4 × 6–8 mm
- Vivotek IT9360-H / IT9380-H dome camera also M4 × 8 mm
- i-PRO / Panasonic WV-QWL100 camera mount bracket also M4 × 4 mm
- OpenFlexure Delta Stage frame also M4 × 6 mm
- Wooden Camera UMB-1 Universal Mattebox (Base/Clamp On/Swing Away/Pro) also M4 × 8 mm
Questions about Cognex In-Sight 9000 machine vision system screws
- What size screw does Cognex In-Sight 9000 machine vision system use?
- M4 × 3–8 mm for housing mounting screws — max insertion 8mm rear, 3mm near lens, 4.5mm near connectors.
- How long are the screws in Cognex In-Sight 9000 machine vision system?
- The records range from 3 to 8 mm depending on the position, so match each screw to its own hole.
- What is the thread pitch of an M4 screw?
- 0.7 mm (coarse), which is the standard pitch for M4 machine screws; a 0.5 mm fine pitch exists but is uncommon. The tap drill is 3.3 mm and the normal clearance hole is 4.5 mm.
- What screwdriver do I need for Cognex In-Sight 9000 machine vision system?
- The sources do not name the drive. For M4, Phillips heads normally take PH2 and Torx heads T20; socket heads take a 3 mm hex key.
- Can I use an imperial screw instead of M4?
- No. Imperial look-alike: #8-32 (4.17 mm) — the standard US PC/rack screw, close but not the same. Use a true M4 screw so it does not cross-thread or strip the hole.