Coin validator / hopper front plate screw size
M4 · 27 mm long
Our records put Coin validator / hopper front plate on M4 screws, 27 mm long.
Where it is used: M4 x 27mm pan-head screw with nut for validator assembly front plates.
Head and drive, as the source states them: pan head.
This entry is marked reported and comes from coinoperatorshop.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.
Coin validator / hopper front plate 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 | 27 mm | 0.7 mm | Pan head | not stated | M4 x 27mm pan-head screw with nut for validator assembly front plates | Reported |
Fitment records and sources
M4 x 27mm pan-head screw with nut for validator assembly front plates
pitch 0.7 mm · tap 3.3 mm · clearance 4.5 mm · PH2 / Torx T20
How to check the screw before you buy
- Check whether the mount uses a VESA pattern or a vendor bracket before buying screws.
- 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 27 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).
- 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 Coin validator / hopper front plate, closest length match first.
- Rexel S16 paper shredder also M4 × 27 mm
- cab Applicator A3200 print-and-apply labeling system (packaging line hardware) also M4 × 27 mm
- Heated bed leveling screws also M4 × 27 mm
- Atdec Telehook TH-2250-VF display wall mount also M4 × 27 mm
- PC radiator fan screws (Koolance/HWLabs/Swiftech) also M4 × 27 mm
- Makita 6095D cordless driver drill also M4 × 27 mm
- Flat-pack cam lock bolt also M4 × 27 mm
- Makeblock cap screw round head hex M4 (catalog part) also M4 × 27 mm
Questions about Coin validator / hopper front plate screws
- What size screw does Coin validator / hopper front plate use?
- M4 × 27 mm for M4 x 27mm pan-head screw with nut for validator assembly front plates.
- How long are the screws in Coin validator / hopper front plate?
- The record gives 27 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 Coin validator / hopper front plate?
- 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.