Jukebox PCB standoff/post hardware screw size
M4 · 20 mm long
Jukebox PCB standoff/post hardware takes M4 metric screws, 20 mm long.
The record covers jukebox parts retailer lists a 'PCB post 20 mm M4 thread' standoff used as general jukebox hardware, alongside separate imperial (UNC) hardware categories for other jukebox fasteners.
This entry is marked confirmed and comes from jukebox-revival.eu.
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.
Jukebox PCB standoff/post hardware 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 | 20 mm | 0.7 mm | not stated | not stated | Jukebox parts retailer lists a 'PCB post 20 mm M4 thread' standoff used as general jukebox hardware, alongside separate imperial (UNC) hardware categories for other jukebox fasteners | Confirmed |
Fitment records and sources
Jukebox parts retailer lists a 'PCB post 20 mm M4 thread' standoff used as general jukebox hardware, alongside separate imperial (UNC) hardware categories for other jukebox fasteners.
pitch 0.7 mm · tap 3.3 mm · clearance 4.5 mm · PH2 / Torx T20
How to check the screw before you buy
- Rack and enclosure hardware mixes metric and imperial (#8-32, #10-32, #6-32), so confirm the thread before forcing a screw.
- 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.
- The record states 20 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
- Not all telescope/finder hardware is metric — Celestron Edge/NexStar SE finder-shoe and dovetail screws are reported as 8/32 (imperial UNC), so metric M4/M5 fitments cannot be assumed across all Celestron products; must check per accessory/vintage.
- Most HVAC chassis hardware in US-market units is imperial; metric shows up mainly on European-made components.
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.
More in Electronics, Racks & Enclosures
The same screw also fits
Devices whose records share a thread with Jukebox PCB standoff/post hardware, closest length match first.
- Phoenix Contact CHARX EV charging connector also M4 × 20 mm
- Wurth Elektronik WA-SSTIE steel spacer stud also M4 × 20 mm
- cab Applicator A3200 print-and-apply labeling system (packaging line hardware) also M4 × 20 mm
- GCX Barcode Scanner Adapter mounting kit also M4 × 20 mm
- Hammond 1555JL (part SC576-50) Stainless steel enclosure lid/cover screws also M4 × 20 mm
- LG 60PZ950 also M4 × 20 mm
- LG 42LW5700 also M4 × 20 mm
- LG 42LV5400 also M4 × 20 mm
Questions about Jukebox PCB standoff/post hardware screws
- What size screw does Jukebox PCB standoff/post hardware use?
- M4 × 20 mm for jukebox parts retailer lists a 'PCB post 20 mm M4 thread' standoff used as general jukebox hardware, alongside separate imperial (UNC) hardware categories for other jukebox fasteners.
- How long are the screws in Jukebox PCB standoff/post hardware?
- The record gives 20 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 Jukebox PCB standoff/post hardware?
- 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.