Power-supply terminal block clamp screw (COSEL) screw size
M2.5 · length not stated in the sources
Power-supply terminal block clamp screw (COSEL) takes M2.5 metric screws. None of the sources we found gives an exact length, so measure the original before you order.
The record covers manufacturer torque table lists M2.5 terminal screws with specified N-m values.
This entry is marked confirmed and comes from cosel.com.
An M2.5 screw is 2.5 mm in diameter with a 0.45 mm pitch, tapped with a 2.05 mm drill; 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.
Power-supply terminal block clamp screw (COSEL) 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 | Manufacturer torque table lists M2.5 terminal screws with specified N-m values | Confirmed |
Fitment records and sources
Manufacturer torque table lists M2.5 terminal screws with specified N-m values
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
How to check the screw before you buy
- Where the manufacturer publishes a torque value, use a torque driver rather than feel.
- 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
- Dell/HP/Lenovo manuals often list screws only by torque or head shape, so community teardowns are needed for diameter.
- M2.5 pitch is 0.45mm vs M3's 0.5mm and M2's 0.4mm — forcing the wrong one strips plastic bosses instantly.
More in Vehicles, Marine & Mobility
The same screw also fits
Devices whose records share a thread with Power-supply terminal block clamp screw (COSEL), closest length match first.
- Audio MusiKraft cartridge mounting screw kit also M2.5
- Dive computer strap / bezel also M2.5
- Turntable cartridge mounting kit (retail) also M2.5
- Analogis phono cartridge screw set also M2.5
- Audio MusiKraft cartridge/headshell mounting kit also M2.5
- Phono cartridge headshell mounting screws (Tonar universal set) also M2.5
- LX9000 glider glide-computer panel screw also M2.5
- Marine compass bezel also M2.5
Questions about Power-supply terminal block clamp screw (COSEL) screws
- What size screw does Power-supply terminal block clamp screw (COSEL) use?
- M2.5 for manufacturer torque table lists M2.5 terminal screws with specified N-m values.
- How long are the screws in Power-supply terminal block clamp screw (COSEL)?
- 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 Power-supply terminal block clamp screw (COSEL)?
- 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.