What is the thread pitch of an M5 screw?

0.8 mm (coarse), which is the standard pitch for M5 machine screws; a 0.5 mm fine pitch exists but is uncommon. The tap drill is 4.2 mm and the normal clearance hole is 5.5 mm.

What screwdriver do I need for Astoria/CMA espresso solenoid group head (used in coffee kiosk equipment)?

The source lists a Hex socket (Allen) drive. Standard M5 heads otherwise take PH2 (Phillips) or T25 (Torx), or a 4 mm hex key.

Can I use an imperial screw instead of M5?

No. Imperial look-alike: #10-32 (4.83 mm) — the other common rack thread; check before mixing. Use a true M5 screw so it does not cross-thread or strip the hole.

Astoria/CMA espresso solenoid group head (used in coffee kiosk equipment) screw size

M5 · 10 mm long

The screws used on Astoria/CMA espresso solenoid group head (used in coffee kiosk equipment) are M5, 10 mm long.

Where it is used: M5 x 10mm Allen (socket head cap) screw, standard fastener in CMA solenoid groups (DIN 7984 / UNI 9327).

Head and drive, as the source states them: Hex socket (Allen) drive.

This entry is marked confirmed and comes from espressoparts.com.

An M5 screw is 5 mm in diameter with a 0.8 mm pitch, tapped with a 4.2 mm drill; imperial look-alike: #10-32 (4.83 mm) — the other common rack thread; check before mixing.

Astoria/CMA espresso solenoid group head (used in coffee kiosk equipment) 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
M5	10 mm	0.8 mm	not stated	Hex socket (Allen)	M5 x 10mm Allen (socket head cap) screw, standard fastener in CMA solenoid groups (DIN 7984 / UNI 9327)	Confirmed

Fitment records and sources

M510mmhigh

M5 x 10mm Allen (socket head cap) screw, standard fastener in CMA solenoid groups (DIN 7984 / UNI 9327)

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

Source

How to check the screw before you buy

Appliance panels often use self-tapping screws into sheet metal or plastic, and machine screws into nuts or inserts — keep each type where it came from.
Diameter: across the threads an M5 screw measures about 5 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
Pitch: 0.8 mm from one thread crest to the next (12.5 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 10 mm. Going longer risks bottoming out or touching parts behind the hole; going shorter loses thread engagement.
Driver: the source names a Hex socket (Allen) drive. For comparison, standard M5 heads take PH2 (Phillips) or T25 (Torx), or a 4 mm hex key.
Tightening: no device-specific torque is published in these records. The site's general figure for M5 is about 4.0-6.0 N·m into metal threads and 1.5-2.5 N·m into plastic bosses; snug it up and stop.

Common mix-ups with M5

Espresso/coffee-equipment M5 and M6 socket-head screws (DIN 7984/UNI 9327) are cross-brand standard fasteners shared across CMA, Astoria, and La Cimbali brewing-group hardware, so a single screw often services multiple manufacturers' machines.
Espresso shower-screen screws vary in length across brands (10-16mm) even though thread is consistently M5, so cross-brand length compatibility is not guaranteed.

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 Astoria/CMA espresso solenoid group head (used in coffee kiosk equipment), closest length match first.

Dishwasher toe kick panel also M5 × 10 mm
Espresso portafilter basket spring also M5 × 10 mm
Furnace / AC control board mounts also M5 × 10 mm
Faucet handle set screws also M5 × 10 mm
Astoria/CMA espresso solenoid group head screw also M5 × 10 mm
Aftermarket car stereo cage also M5 × 10 mm
HP Pavilion ze5600 also M5 × 10 mm
HP Pavilion 4400 also M5 × 10 mm

Questions about Astoria/CMA espresso solenoid group head (used in coffee kiosk equipment) screws

What size screw does Astoria/CMA espresso solenoid group head (used in coffee kiosk equipment) use?: M5 × 10 mm for M5 x 10mm Allen (socket head cap) screw, standard fastener in CMA solenoid groups (DIN 7984 / UNI 9327).
How long are the screws in Astoria/CMA espresso solenoid group head (used in coffee kiosk equipment)?: The record gives 10 mm. Measure the original from under the head (overall for a countersunk head) to confirm before ordering.
What is the thread pitch of an M5 screw?: 0.8 mm (coarse), which is the standard pitch for M5 machine screws; a 0.5 mm fine pitch exists but is uncommon. The tap drill is 4.2 mm and the normal clearance hole is 5.5 mm.
What screwdriver do I need for Astoria/CMA espresso solenoid group head (used in coffee kiosk equipment)?: The source lists a Hex socket (Allen) drive. Standard M5 heads otherwise take PH2 (Phillips) or T25 (Torx), or a 4 mm hex key.
Can I use an imperial screw instead of M5?: No. Imperial look-alike: #10-32 (4.83 mm) — the other common rack thread; check before mixing. Use a true M5 screw so it does not cross-thread or strip the hole.

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