Elo self-service EMV cradle kit for Wallaby Pro stands (Verifone P400 compatible) screw size
M4 · 8 mm long
If you are replacing a screw on Elo self-service EMV cradle kit for Wallaby Pro stands (Verifone P400 compatible), the thread is M4, 8 mm long.
Where it is used: assembly instructions list 'Mounting Screws Qty.4 Screw, M4x8, Pan Head, Cross Recess, Black'.
Head and drive, as the source states them: pan head.
This entry is marked confirmed and comes from docs.elotouch.com.
An M4 screw is 4 mm in diameter with a 0.7 mm pitch, tapped with a 3.3 mm drill; imperial look-alike: #8-32 (4.17 mm) — the standard US PC/rack screw, close but not the same.
Elo self-service EMV cradle kit for Wallaby Pro stands (Verifone P400 compatible) 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 | 8 mm | 0.7 mm | Pan head | not stated | Assembly instructions list 'Mounting Screws Qty.4 Screw, M4x8, Pan Head, Cross Recess, Black'black finish | Confirmed |
Fitment records and sources
Assembly instructions list 'Mounting Screws Qty.4 Screw, M4x8, Pan Head, Cross Recess, Black'
pitch 0.7 mm · tap 3.3 mm · clearance 4.5 mm · PH2 / Torx T20
How to check the screw before you buy
- For medical and lab equipment, use the manufacturer's replacement part where one is specified; the thread size here helps identify it, not certify it.
- 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: for pan 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 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
- US-made pinball machines (Williams/Bally/Stern) overwhelmingly use imperial UTS threads (#6-32, #8-32, #10-32); explicit metric threads only appear on newer/import components such as Jersey Jack Pinball's Hobbit Smaug assembly (M3).
- Robot vacuum, air purifier and baby monitor teardowns list screws by driver and length only — length is not a thread size.
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Devices whose records share a thread with Elo self-service EMV cradle kit for Wallaby Pro stands (Verifone P400 compatible), closest length match first.
- Takara Belmont PRO III 047 dental chair also M4 × 8 mm
- cab XD4T industrial label printer also M4 × 8 mm
- TSC MH241 industrial label printer also M4 × 8 mm
- Agilent 8453 UV-Visible spectrophotometer also M4 × 8 mm
- Cognex In-Sight 9000 machine vision system also M4 × 8 mm
- Carbide3D Shapeoko 5 Pro CNC router also M4 × 8 mm
- Epson SC-P8500D / T7700D large-format printer also M4 × 8 mm
- DJI RS upper quick-release plate also M4 × 8 mm
Questions about Elo self-service EMV cradle kit for Wallaby Pro stands (Verifone P400 compatible) screws
- What size screw does Elo self-service EMV cradle kit for Wallaby Pro stands (Verifone P400 compatible) use?
- M4 × 8 mm for assembly instructions list 'Mounting Screws Qty.4 Screw, M4x8, Pan Head, Cross Recess, Black'.
- How long are the screws in Elo self-service EMV cradle kit for Wallaby Pro stands (Verifone P400 compatible)?
- 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 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 Elo self-service EMV cradle kit for Wallaby Pro stands (Verifone P400 compatible)?
- 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.