Oyaide SCR-S headshell screw set screw size
M2.5 · length not stated in the sources
The screws used on Oyaide SCR-S headshell screw set are M2.5. None of the sources we found gives an exact length, so measure the original before you order.
The record covers turntable cartridge mounting screw/nut/washer set.
This entry is marked confirmed and comes from oyaide.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.
Oyaide SCR-S headshell screw set 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 | not stated | 0.45 mm | not stated | not stated | turntable cartridge mounting screw/nut/washer setwasher / flange face | Confirmed |
Fitment records and sources
M2.5confirmed
turntable cartridge mounting screw/nut/washer set
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.
- 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.
- M2.5 and M3 look the same to the naked eye — you need calipers on the shank to tell them apart.
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Devices whose records share a thread with Oyaide SCR-S headshell screw set, closest length match first.
- Oyaide SCR-S / SCR-L headshell screw sets also M2.5
- Tonar cartridge screw set for phono cartridges also M2.5
- Turntable headshell / phono cartridge mounting screws also M2.5
- Ortofon 2M cartridge also M2.5
- Fishing reel handle lock nut also M2.5
- LP Gear cartridge mounting screw set also M2.5
- Wago rail/chassis terminal block fixing screw also M2.5
- VinylPro aluminium cartridge kit also M2.5
Questions about Oyaide SCR-S headshell screw set screws
- What size screw does Oyaide SCR-S headshell screw set use?
- M2.5 for turntable cartridge mounting screw/nut/washer set.
- How long are the screws in Oyaide SCR-S headshell screw set?
- None of the sources states a length. Remove one screw and measure it from under the head to the tip (overall for a countersunk head).
- 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 Oyaide SCR-S headshell screw set?
- 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.