Datex-Ohmeda Aestiva/7900 ventilator VESA mounting bracket screw size
M4 · 16 mm long
Our records put Datex-Ohmeda Aestiva/7900 ventilator VESA mounting bracket on M4 screws, 16 mm long.
The record covers GCX mounting guide: "Attach the VESA Plate to the Aestiva 7900 Ventilator using the M4 x 16mm pan head machine screws (4) provided".
Head and drive, as the source states them: pan head.
This entry is marked confirmed and comes from gcx.com.
M4 means a 4 mm nominal diameter with a 0.7 mm thread pitch. Imperial look-alike: #8-32 (4.17 mm) — the standard US PC/rack screw, close but not the same.
Datex-Ohmeda Aestiva/7900 ventilator VESA mounting bracket 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 | 16 mm | 0.7 mm | Pan head | not stated | GCX mounting guide: "Attach the VESA Plate to the Aestiva 7900 Ventilator using the M4 x 16mm pan head machine screws (4) provided" | Confirmed |
Fitment records and sources
GCX mounting guide: "Attach the VESA Plate to the Aestiva 7900 Ventilator using the M4 x 16mm pan head machine screws (4) provided"
pitch 0.7 mm · tap 3.3 mm · clearance 4.5 mm · PH2 / Torx T20
How to check the screw before you buy
- VESA holes are threaded inserts in the back cover; if a screw stops early, back it out rather than forcing it, because a bottomed-out screw can crack the panel housing.
- 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: for pan head screws, measure from under the head to the tip (countersunk heads are the exception: they are measured overall).
- The record states 16 mm. Going longer risks bottoming out or touching parts behind the hole; going shorter loses thread engagement.
- 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
- VESA thread size is set by pattern class: M4 for 75x75/100x100, M6 or M8 for the big 200mm+ patterns. Check the plate on the back of the display.
- VESA fixes the hole pattern and max thread depth, not screw length — length depends on the panel back and any spacers.
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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- LG 55LW9500 also M4 × 16 mm
- LED downlight trim and driver also M4 × 16 mm
- LG 50PZ950U also M4 × 16 mm
- LG 65LW6500 also M4 × 16 mm
- Monitor arms (Ergotron LX and generic) also M4 × 16 mm
- LG 60LW9500 also M4 × 16 mm
Questions about Datex-Ohmeda Aestiva/7900 ventilator VESA mounting bracket screws
- What size screw does Datex-Ohmeda Aestiva/7900 ventilator VESA mounting bracket use?
- M4 × 16 mm for GCX mounting guide: "Attach the VESA Plate to the Aestiva 7900 Ventilator using the M4 x 16mm pan head machine screws (4) provided".
- How long are the screws in Datex-Ohmeda Aestiva/7900 ventilator VESA mounting bracket?
- The record gives 16 mm. Measure the original from under the head (overall for a countersunk head) to confirm before ordering.
- 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 Datex-Ohmeda Aestiva/7900 ventilator VESA mounting bracket?
- 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.