Allen-Bradley PowerFlex 750-series I/O shield termination screw size
M4 · length not stated in the sources
The screws used on Allen-Bradley PowerFlex 750-series I/O shield termination are M4. None of the sources we found gives an exact length, so measure the original before you order.
It is listed for M4 screws with ring terminals at the signal shield termination points.
This entry is marked confirmed and comes from literature.rockwellautomation.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.
Allen-Bradley PowerFlex 750-series I/O shield termination 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 | M4 screws with ring terminals at the signal shield termination points | Confirmed |
Fitment records and sources
M4 screws with ring terminals at the signal shield termination points
pitch 0.7 mm · tap 3.3 mm · clearance 4.5 mm · PH2 / Torx T20
How to check the screw before you buy
- Take one original screw out first and measure it before ordering; the record above tells you the thread, the original screw tells you the exact length and head.
- 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
- Camera rig/cage accessories (SmallRig, Wooden Camera/Metabones) frequently mix M4 structural screws with 1/4-20 and 3/8-16 imperial mounting points on the same product — verify which specific fastener a manual is referencing before ordering replacements.
- M4 and 6-32 UNC share a nominal diameter with different pitch — a classic cross-thread in US-market kits.
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Devices whose records share a thread with Allen-Bradley PowerFlex 750-series I/O shield termination, closest length match first.
- Kern PFB precision balance internal hardware also M4
- Schneider Altivar 12 drive also M4
- Allen-Bradley PowerFlex 755 IP00 control pod also M4
- European cup hinge mounting plate also M4
- Victron MultiPlus-II / Quattro-II inverter-charger also M4
- ECSS-E-HB-32-23A space threaded fastener handbook also M4
- Navien NCO series tankless water heater also M4
- Eschmann LS5 / SES2555 autoclave also M4
Questions about Allen-Bradley PowerFlex 750-series I/O shield termination screws
- What size screw does Allen-Bradley PowerFlex 750-series I/O shield termination use?
- M4 for M4 screws with ring terminals at the signal shield termination points.
- How long are the screws in Allen-Bradley PowerFlex 750-series I/O shield termination?
- 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 Allen-Bradley PowerFlex 750-series I/O shield termination?
- 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.