Verifone M400 payment terminal rear locking bracket access cover screw size
M3 · 8 mm long
The screws used on Verifone M400 payment terminal rear locking bracket access cover are M3, 8 mm long.
Where it is used: OEM engineering drawing callout: 'M3 X 8MM BUTTON HEAD SCREW SECURES ACCESS COVER TO VERIFONE M400 REAR LOCKING BRACKET'.
Head and drive, as the source states them: button head.
This entry is marked confirmed and comes from cdn.collage.inc.
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.
Verifone M400 payment terminal rear locking bracket access cover 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 | Button head | not stated | OEM engineering drawing callout: 'M3 X 8MM BUTTON HEAD SCREW SECURES ACCESS COVER TO VERIFONE M400 REAR LOCKING BRACKET' | Confirmed |
Fitment records and sources
M3M3x8 mmconfirmed — Verifone-compatible mounting bracket engineering drawing (Collage/CDN hosted OEM spec)
OEM engineering drawing callout: 'M3 X 8MM BUTTON HEAD SCREW SECURES ACCESS COVER TO VERIFONE M400 REAR LOCKING BRACKET'
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
How to check the screw before you buy
- Board standoffs and enclosure bosses set the usable length: the screw should clamp the board without bottoming in the standoff.
- 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: for button head screws, measure from under the head to the tip (countersunk heads are the exception: they 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 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
- DIN-rail terminal blocks are near-universally M3 across Dinkle, TE, Omron and RND, but torque differs (0.5-0.8 Nm) — over-torquing an M3 terminal screw strips it instantly.
- 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.
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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Devices whose records share a thread with Verifone M400 payment terminal rear locking bracket access cover, closest length match first.
- Desktop switch rack-ear kits also M3 × 8 mm
- GCX barcode scanner adapter kit (scanner-to-bracket) also M3 × 8 mm
- ISO 7380 button head, small assemblies also M3 × 8 mm
- DAS / NAS enclosure chassis also M3 × 8 mm
- Portable medical device enclosure also M3 × 8 mm
- Netgear Nighthawk AX8 router also M3 × 8 mm
- Elo E458992 EMV payment terminal mount kit also M3 × 8 mm
- Wurth Elektronik WA-SPAIE plastic spacer stud also M3 × 8 mm
Questions about Verifone M400 payment terminal rear locking bracket access cover screws
- What size screw does Verifone M400 payment terminal rear locking bracket access cover use?
- M3 × 8 mm for OEM engineering drawing callout: 'M3 X 8MM BUTTON HEAD SCREW SECURES ACCESS COVER TO VERIFONE M400 REAR LOCKING BRACKET'.
- How long are the screws in Verifone M400 payment terminal rear locking bracket access cover?
- 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 Verifone M400 payment terminal rear locking bracket access cover?
- 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.
- Where can I buy replacement screws for Verifone M400 payment terminal rear locking bracket access cover?
- TechSpareWarehouse (our own store) lists M3 x 8mm, which matches the length in the records above.