Schneider Electric TM7 safety-related system screw size
M4 · length not stated in the sources
The screws used on Schneider Electric TM7 safety-related system are M4. None of the sources we found gives an exact length, so measure the original before you order.
It is listed for aluminium frame mounting with two wedge nuts and M4 screws.
This entry is marked confirmed and comes from product-help.schneider-electric.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.
Schneider Electric TM7 safety-related 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 | not stated | 0.7 mm | not stated | not stated | Aluminium frame mounting with two wedge nuts and M4 screws | Confirmed |
Fitment records and sources
Aluminium frame mounting with two wedge nuts and M4 screws
pitch 0.7 mm · tap 3.3 mm · clearance 4.5 mm · PH2 / Torx T20
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 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.
- 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
- Ideal Scope Mounting System manuals disagree between revisions (M4 vs M5 clamping screws) - check your own manual.
- goBILDA is metric M4; the older Actobotics/ServoCity system it resembles is imperial 6-32. The parts look alike and will strip each other.
More in Industrial & Machinery
ABB ACS580 motor terminal box / cable glandsABB ACS580 terminal hardware (frames R3-R5)ABB random-wound motor terminal boxes (ACS580 drive systems)Allen-Bradley ControlLogix 1756-A chassisAngle grinder gear housingBianchi / Nuova Simonelli / Rheavendors / Saeco vending machineCircular saw blade guard pivotContender Planetary Mixer MXP004/MXP005 (commercial bakery mixer) electrical diagram terminal screwsCordless drill housing shellsCOSEL power supply terminal block (used in industrial/pump/water-treatment control panels)Datalogic DS2400 fixed-mount barcode readerDeWalt D51430 / D51431 pneumatic nailer
Browse all 113 in Industrial & Machinery →The same screw also fits
Devices whose records share a thread with Schneider Electric TM7 safety-related system, closest length match first.
- Datalogic DS2400 fixed-mount barcode reader also M4
- Singer 3323/3321 sewing machine also M4
- Homelite garden tool (part 661817001) also M4
- Bianchi / Nuova Simonelli / Rheavendors / Saeco vending machine also M4
- Makita 1806B planer also M4
- Siemens SENTRON 3VA9114-0SS10 circuit breaker mounting kit also M4
- Makita TW004G cordless impact wrench also M4
- Schneider Electric Altivar 312 drive also M4
Questions about Schneider Electric TM7 safety-related system screws
- What size screw does Schneider Electric TM7 safety-related system use?
- M4 for aluminium frame mounting with two wedge nuts and M4 screws.
- How long are the screws in Schneider Electric TM7 safety-related system?
- 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 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 Schneider Electric TM7 safety-related 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.