MASSO CNC homing sensor screw size
M3 · length not stated in the sources
MASSO CNC homing sensor takes M3 metric screws. None of the sources we found gives an exact length, so measure the original before you order.
It is listed for official docs state easy mounting using M3 screws.
This entry is marked confirmed and comes from docs.masso.com.au.
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.
MASSO CNC homing sensor 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 | Official docs state easy mounting using M3 screws | Confirmed |
Fitment records and sources
Official docs state easy mounting using M3 screws
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
How to check the screw before you buy
- Into printed plastic, the screw either self-taps or needs a heat-set insert; machine screws straight into plastic strip easily.
- 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
- GoPro's own official Dive Housing user guide does not itself state a metric screw size for the housing body; only third-party accessory manufacturer (INON) manuals explicitly cite M6 screws for their add-on arms/adapters attaching to the housing.
- CPAP teardowns rarely state thread size; M3 here is inferred from photos and small-appliance convention, not a spec sheet.
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Devices whose records share a thread with MASSO CNC homing sensor, closest length match first.
- Linear rail carriage block also M3
- Ender 3 V3 KE cooling fan brackets also M3
- Carbide3D Shapeoko 5 Pro CNC router also M3
- RatRig V-Core 3.1 (200x200) also M3
- Voron Trident also M3
- Slice Engineering Mosquito hotend also M3
- Original Prusa MK4 kit also M3
- FDM hotend and extruder mounts (general) also M3
Questions about MASSO CNC homing sensor screws
- What size screw does MASSO CNC homing sensor use?
- M3 for official docs state easy mounting using M3 screws.
- How long are the screws in MASSO CNC homing sensor?
- 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 MASSO CNC homing sensor?
- 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.