What size screw does COSEL power supply terminal block use?

M4 × 10 mm for COSEL torque table explicitly lists M4 terminal screw diameter with torque range 1.0-1.5 N·m for higher current terminal blocks; M5 × 12 mm for COSEL torque table explicitly lists M5 terminal screw diameter with torque range 1.9-3.0 N·m for high-current terminal connections used in industrial power equipment.

How long are the screws in COSEL power supply terminal block?

The records range from 10 to 12 mm depending on the position, so match each screw to its own hole.

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 COSEL power supply terminal block?

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.

COSEL power supply terminal block screw size

M4 / M5 · 10 to 12 mm long

If you are replacing a screw on COSEL power supply terminal block, the thread is M4 and M5 in lengths from 10 to 12 mm.

There are 2 separate fitment records for it, including COSEL torque table explicitly lists M4 terminal screw diameter with torque range 1.0-1.5 N (M4) and COSEL torque table explicitly lists M5 terminal screw diameter with torque range 1.9-3.0 N (M5).

2 of the 2 records are marked confirmed, drawn from 1 source (cosel.com).

For reference, M4 is 4 mm across the threads at 0.7 mm pitch. The imperial size people confuse it with: #8-32 (4.17 mm) — the standard US PC/rack screw, close but not the same.

COSEL power supply terminal block screw specifications

One row per fitment record. Head, drive and torque are shown only where the source states them; pitch is the ISO coarse pitch for the thread.

Thread	Length	Pitch	Head	Drive	Torque	Where it goes	Status
M4	10 mm	0.7 mm	not stated	not stated	1.0-1.5 N·m	COSEL torque table explicitly lists M4 terminal screw diameter with torque range 1.0-1.5 N·m for higher current terminal blocks	Confirmed
M5	12 mm	0.8 mm	not stated	not stated	1.9-3.0 N·m	COSEL torque table explicitly lists M5 terminal screw diameter with torque range 1.9-3.0 N·m for high-current terminal connections used in industrial power equipment	Confirmed

Fitment records and sources

M4M4x10confirmed

COSEL torque table explicitly lists M4 terminal screw diameter with torque range 1.0-1.5 N·m for higher current terminal blocks

pitch 0.7 mm · tap 3.3 mm · clearance 4.5 mm · PH2 / Torx T20

Source

M5M5x12confirmed

COSEL torque table explicitly lists M5 terminal screw diameter with torque range 1.9-3.0 N·m for high-current terminal connections used in industrial power equipment

pitch 0.8 mm · tap 4.2 mm · clearance 5.5 mm · PH2 / Torx T25

Source

How to check the screw before you buy

Printers and POS terminals often use self-tapping screws into plastic; re-use the original thread path instead of cutting a new one.
Diameter: across the threads an M4 screw measures about 4 mm with calipers (usually a hair under). This device also uses M5, so measure each screw rather than assuming they match.
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 records span 10–12 mm, which means different positions take different lengths — match each hole to its own screw.
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.

Common mix-ups with M4 / M5

Manual gives torque only, not screw length/drive type — verify physically before sourcing replacements.
M4 and 6-32 UNC share a nominal diameter with different pitch — a classic cross-thread in US-market kits.
Some scooters and appliances use self-tapping screws of similar diameter rather than true M5 machine threads.
Sensor barrel sizes like M8, M12, M18 and M30 name the sensor body or connector diameter, not a mounting screw — check whether the M number is a body thread before buying screws.

Pitch gauge · Screw size finder · Torque guide

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.

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The same screw also fits

Devices whose records share a thread with COSEL power supply terminal block, closest length match first.

Rexel S16 paper shredder also M5 × 12 mm
HP LaserJet 9000/9040/9050 series printer also M4 × 10 mm
NCR 7360 self-checkout Bagwell Upgrade Kit (K112/K114/K124) also M4 × 10 mm
NCR ATM repairing components screw also M4 × 10 mm
HP Color LaserJet 8500 2000-sheet input unit also M4 × 10 mm
Diebold Opteva ATM cassette screw also M4 × 10 mm
Grindex Mega Inox submersible pump (water treatment/wastewater pump) terminal box also M4 × 10 mm
HP Color LaserJet 8500 / 8500N / 8500DN also M4 × 10 mm

Questions about COSEL power supply terminal block screws

What size screw does COSEL power supply terminal block use?: M4 × 10 mm for COSEL torque table explicitly lists M4 terminal screw diameter with torque range 1.0-1.5 N·m for higher current terminal blocks; M5 × 12 mm for COSEL torque table explicitly lists M5 terminal screw diameter with torque range 1.9-3.0 N·m for high-current terminal connections used in industrial power equipment.
How long are the screws in COSEL power supply terminal block?: The records range from 10 to 12 mm depending on the position, so match each screw to its own hole.
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 COSEL power supply terminal block?: 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.
How tight should the M4 screw on COSEL power supply terminal block be?: The source gives 1.0-1.5 N·m for COSEL torque table explicitly lists M4 terminal screw diameter with torque range 1.0-1.5 N·m for higher current terminal blocks.

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