What size screw does Philips IntelliVue MP40/MP50 Patient Monitors use?

M3 × 8 mm for torx EJOT screws for rear enclosure and case assembly.

How long are the screws in Philips IntelliVue MP40/MP50 Patient Monitors?

The record gives 8 mm. Measure the original from under the head (overall for a countersunk head) to confirm before ordering.

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 Philips IntelliVue MP40/MP50 Patient Monitors?

The source lists a Torx drive. Standard M3 heads otherwise take PH1 (Phillips) or T10 (Torx), or 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.

Where can I buy replacement screws for Philips IntelliVue MP40/MP50 Patient Monitors?

TechSpareWarehouse (our own store) lists M3 x 8mm, which matches the length in the records above.

Philips IntelliVue MP40/MP50 Patient Monitors screw size

M3 · 8 mm long

Our records put Philips IntelliVue MP40/MP50 Patient Monitors on M3 screws, 8 mm long.

The record covers torx EJOT screws for rear enclosure and case assembly.

Head and drive, as the source states them: Torx drive.

This entry is marked confirmed and comes from trigmomed.com.

For reference, M3 is 3 mm across the threads at 0.5 mm pitch. The imperial size people confuse it with: #5-40 (3.18 mm) or #4-40 — neither interchanges with M3.

Philips IntelliVue MP40/MP50 Patient Monitors 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	8 mm	0.5 mm	not stated	Torx	Torx EJOT screws for rear enclosure and case assembly	Confirmed

Fitment records and sources

M38 mmconfirmed

Torx EJOT screws for rear enclosure and case assembly

pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10

Source

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 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.
The record states 8 mm. Going longer risks bottoming out or touching parts behind the hole; going shorter loses thread engagement.
Driver: the source names a Torx drive. For comparison, standard M3 heads take PH1 (Phillips) or T10 (Torx), or a 2.5 mm hex key.
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

GE patient monitors often use 'PT 3x10mm' screws; these are thread-forming screws for plastic and are NOT standard M3 machine threads.
Telescope thumbscrews are sold in a wide non-metric legacy range too (1/4-20, 8-32, 10-32 on many Meade/Celestron mounts), so metric M3/M4 fitment applies mainly to newer/international accessory ecosystems (SkyWatcher, generic 1.25" accessories) and should not be assumed universal.

Pitch gauge · Screw size finder · Torque guide

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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The same screw also fits

Devices whose records share a thread with Philips IntelliVue MP40/MP50 Patient Monitors, closest length match first.

Apple HomePod internal drivers also M3 × 8 mm
Mindray BeneView T6/T8 Patient Monitor also M3 × 8 mm
Dell U2719D also M3 × 8 mm
Dell S2425H monitor also M3 × 8 mm
Soundbar drivers and boards also M3 × 8 mm
Dell U2721DE also M3 × 8 mm
Dell U2419H also M3 × 8 mm
Zebra / Motorola barcode scanner bracket (Havis FlexiPole) also M3 × 8 mm

Questions about Philips IntelliVue MP40/MP50 Patient Monitors screws

What size screw does Philips IntelliVue MP40/MP50 Patient Monitors use?: M3 × 8 mm for torx EJOT screws for rear enclosure and case assembly.
How long are the screws in Philips IntelliVue MP40/MP50 Patient Monitors?: The record gives 8 mm. Measure the original from under the head (overall for a countersunk head) to confirm before ordering.
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 Philips IntelliVue MP40/MP50 Patient Monitors?: The source lists a Torx drive. Standard M3 heads otherwise take PH1 (Phillips) or T10 (Torx), or 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.
Where can I buy replacement screws for Philips IntelliVue MP40/MP50 Patient Monitors?: TechSpareWarehouse (our own store) lists M3 x 8mm, which matches the length in the records above.

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