Turntable headshell / phono cartridge mounting screws screw size
M2.5 · 3 to 10 mm long
If you are replacing a screw on Turntable headshell / phono cartridge mounting screws, the thread is M2.5 in lengths from 3 to 10 mm.
Where it is used: cartridge Mounting Screw Kit: 'Nominal size (metric): M2.5, Thread pitch: 0.45, Length: 3, 4, 5, 6, 8 and 10 mm'.
This entry is marked confirmed and comes from store.audiomusikraft.com.
M2.5 means a 2.5 mm nominal diameter with a 0.45 mm thread pitch. Imperial look-alike: #3-48 / #4-40 (2.51 / 2.84 mm) — #4-40 is the common US stand-in and it will NOT thread in.
Turntable headshell / phono cartridge mounting screws 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 |
|---|---|---|---|---|---|---|
| M2.5 | 3–10 mm | 0.45 mm | not stated | not stated | Cartridge Mounting Screw Kit: 'Nominal size (metric): M2.5, Thread pitch: 0.45, Length: 3, 4, 5, 6, 8 and 10 mm' | Confirmed |
Fitment records and sources
Cartridge Mounting Screw Kit: 'Nominal size (metric): M2.5, Thread pitch: 0.45, Length: 3, 4, 5, 6, 8 and 10 mm'
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
How to check the screw before you buy
- On vehicles and bikes, use the original strength class and finish; outdoor hardware is usually stainless or coated to resist corrosion.
- Diameter: across the threads an M2.5 screw measures about 2.5 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.45 mm from one thread crest to the next (22.22 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 records span 3–10 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source does not name the drive. Standard M2.5 heads take PH1 for Phillips and T8 for Torx, and a 2 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 M2.5 is about 45-70 N·cm into metal threads and 20-35 N·cm into plastic bosses; snug it up and stop.
Common mix-ups with M2.5
- M2 and M2.5 are both marketed for turntable headshells; buyers must check which their specific cartridge/tonearm brand uses.
- NI's other DAQ SCSI jackscrews use inch-standard 2-56 UNC threads, not metric — M2.5 applies only to the specific jacksocket kit listed.
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.
-
25x M2.5 x 3mm Phillips Screws for Acer Nitro 5 SSD M.2 WiFi Card
$5.99 -
M2.5 x 4mm Screws for Lenovo IdeaPad 5 Pro 14 Display Hinge 10-Pack Black
$4.99 -
M2.5 x 4mm Screws for Lenovo IdeaPad 5 Pro 14 System Board Hinge 10-Pack Black
$4.99
-
M2.5 x 5mm Screws Compatible with Dell XPS 14 9440 Display Assembly 10-Pack
$4.99 -
M2.5 x 5mm Phillips Wafer Head Screw for Action Camera Protective Housing - Pack of 50 Black
$4.79 each · min. 2
-
M2.5 x 3mm Phillips Wafer Head Screws, Low Profile – 10-Pack Black
$4.99Choose size -
M2.5 x 3mm Black Wafer Head Screws for Lenovo ThinkPad S1 Yoga Display Replacement – 10-Pack Black
$4.99Choose size -
HP EliteBook 840 G8 Replacement Screws Sold Individually – M1.6 x 3mm, M2 x 2.5mm, M2 x 4mm, M2.5 x 4mm Phillips Wafer Head, Black
$0.10Choose size
More in Vehicles, Marine & Mobility
ABB Terra DC Wallbox (3-phase UL)Adjustable Picatinny rail threaded insertAdult e-scootersAftermarket car stereo cageAirgun scope/rail mount replacement screwsAlpine Head UnitsAnalogis phono cartridge screw setArduino UNO / full-size Arduino boardsAudio MusiKraft cartridge mounting screw kitAudio MusiKraft cartridge/headshell mounting kitBar-end plug or bar-end shifterBerkel 330M Slicer carriage/guard fastener
Browse all 171 in Vehicles, Marine & Mobility →The same screw also fits
Devices whose records share a thread with Turntable headshell / phono cartridge mounting screws, closest length match first.
- Tonar cartridge screw set for phono cartridges also M2.5 × 3–6 mm
- Ortofon 2M cartridge also M2.5 × 5–7 mm
- NVIDIA Jetson Nano Developer Kit carrier board also M2.5 × 6–10 mm
- Fishing reel handle lock nut also M2.5 × 5–8 mm
- Turntable headshell / phono cartridge mounting also M2.5 × 3–10 mm
- VinylPro aluminium cartridge kit also M2.5 × 6–10 mm
- Turntable cartridge mounting kit (retail) also M2.5 × 3–8 mm
- Audio MusiKraft cartridge mounting screw kit also M2.5 × 3–10 mm
Questions about Turntable headshell / phono cartridge mounting screws screws
- What size screw does Turntable headshell / phono cartridge mounting screws use?
- M2.5 × 3–10 mm for cartridge Mounting Screw Kit: 'Nominal size (metric): M2.5, Thread pitch: 0.45, Length: 3, 4, 5, 6, 8 and 10 mm'.
- How long are the screws in Turntable headshell / phono cartridge mounting screws?
- The records range from 3 to 10 mm depending on the position, so match each screw to its own hole.
- What is the thread pitch of an M2.5 screw?
- 0.45 mm (coarse), which is the standard pitch for M2.5 machine screws; a 0.35 mm fine pitch exists but is uncommon. The tap drill is 2.05 mm and the normal clearance hole is 2.9 mm.
- What screwdriver do I need for Turntable headshell / phono cartridge mounting screws?
- The sources do not name the drive. For M2.5, Phillips heads normally take PH1 and Torx heads T8; socket heads take a 2 mm hex key.
- Can I use an imperial screw instead of M2.5?
- No. Imperial look-alike: #3-48 / #4-40 (2.51 / 2.84 mm) — #4-40 is the common US stand-in and it will NOT thread in. Use a true M2.5 screw so it does not cross-thread or strip the hole.
- Where can I buy replacement screws for Turntable headshell / phono cartridge mounting screws?
- TechSpareWarehouse (our own store) lists M2.5 x 3mm, M2.5 x 4mm and M2.5 x 5mm, which match lengths in the records above.