Pepperl+Fuchs ML100 photoelectric sensors screw size
M3 · length not stated in the sources
The screws used on Pepperl+Fuchs ML100 photoelectric sensors are M3. None of the sources we found gives an exact length, so measure the original before you order.
Where it is used: metal threaded mounting holes in sensor body.
This entry is marked confirmed and comes from pepperl-fuchs.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.
Pepperl+Fuchs ML100 photoelectric sensors 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 | metal threaded mounting holes in sensor body | Confirmed |
Fitment records and sources
metal threaded mounting holes in sensor body
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
How to check the screw before you buy
- Industrial parts lists usually give the full callout (thread, length, head, grade); match all four, not just the thread.
- 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
- Many gas-detector and sensor manuals only give a torque spec (e.g. '0.5 N·m max') without repeating the thread size at every mention — the explicit M3 callout is usually only in the accessories/spare-parts table, not the main installation steps.
- 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.
More in Industrial & Machinery
The same screw also fits
Devices whose records share a thread with Pepperl+Fuchs ML100 photoelectric sensors, closest length match first.
- Pinball machine (Jersey Jack Pinball 'Hobbit') also M3
- Milwaukee heat gun (service parts list m248220) also M3
- NAS drive trays (Synology / QNAP) also M3
- Kitronik Prong soil moisture sensor (micro:bit) also M3
- Milwaukee 1/2 in. driver-drill (54-06-3302) also M3
- Keyence IG-010 laser displacement sensor also M3
- Nest Doorbell (battery) also M3
- Milwaukee M18/M12 charger and cordless tool internals also M3
Questions about Pepperl+Fuchs ML100 photoelectric sensors screws
- What size screw does Pepperl+Fuchs ML100 photoelectric sensors use?
- M3 for metal threaded mounting holes in sensor body.
- How long are the screws in Pepperl+Fuchs ML100 photoelectric sensors?
- 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 Pepperl+Fuchs ML100 photoelectric sensors?
- 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.