How long are the screws in Eurorack panel jacks and pots?

The records range from 6 to 10 mm depending on the position, so match each screw to its own hole.

What is the thread pitch of an M3 screw?

0.5 mm (coarse), which is the standard pitch for M3 machine screws; a 0.35 mm fine pitch exists but is uncommon. The tap drill is 2.5 mm and the normal clearance hole is 3.4 mm.

What screwdriver do I need for Eurorack panel jacks and pots?

The sources do not name the drive. For M3, Phillips heads normally take PH1 and Torx heads T10; socket heads take a 2.5 mm hex key.

Can I use an imperial screw instead of M3?

No. Imperial look-alike: #5-40 (3.18 mm) or #4-40 — neither interchanges with M3. Use a true M3 screw so it does not cross-thread or strip the hole.

Where can I buy replacement screws for Eurorack panel jacks and pots?

TechSpareWarehouse (our own store) lists M3 x 6mm, M3 x 8mm and M3 x 10mm, which match lengths in the records above.

Eurorack panel jacks and pots screw size

M3 · 6 to 10 mm long

The screws used on Eurorack panel jacks and pots are M3 in lengths from 6 to 10 mm.

Where it is used: panel-mounted jack and pot hardware uses metric M3-class brackets.

This entry is marked reported and comes from sdiy.info.

For reference, M3 is 3 mm across the threads at 0.5 mm pitch. The imperial size people confuse it with: #5-40 (3.18 mm) or #4-40 — neither interchanges with M3.

Eurorack panel jacks and pots 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
M3	6–10 mm	0.5 mm	not stated	not stated	Panel-mounted jack and pot hardware uses metric M3-class brackets	Reported

Fitment records and sources

M36-10mmreported

Panel-mounted jack and pot hardware uses metric M3-class brackets

pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10

Source

How to check the screw before you buy

Board standoffs and enclosure bosses set the usable length: the screw should clamp the board without bottoming in the standoff.
Diameter: across the threads an M3 screw measures about 3 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
Pitch: 0.5 mm from one thread crest to the next (20 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 6–10 mm, which means different positions take different lengths — match each hole to its own screw.
Driver: the source does not name the drive. Standard M3 heads take PH1 for Phillips and T10 for Torx, and a 2.5 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 M3 is about 80-130 N·cm into metal threads and 35-60 N·cm into plastic bosses; snug it up and stop.

Common mix-ups with M3

Thor Zone Nanoq S case mixes metric M3 (various lengths: 4, 5, 6, 10, 13, 20mm) and imperial #6-32 UNC fasteners across the same build, so builders must sort hardware carefully rather than assuming an all-metric kit.
Eurorack is a strong known case with two competing metric standards (M2.5 for Vector rails, M3 for Schroff/DIN-style and 3U threaded rails); mixing rail types requires matching screw/nut thread.

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 Eurorack panel jacks and pots, closest length match first.

Elo E458992 EMV PIN Pad Mounting Kit (for Verifone MX915/M400, Ingenico ISC250, Square) also M3 × 8 mm
Surgical instrument tray racks also M3 × 6–10 mm
Mesh Wi-Fi node enclosures also M3 × 8–10 mm
Keystone Electronics metric nylon standoff also M3 × 8 mm
Mean Well NMP650 / NMP1K2 modular power supply also M3 × 6 mm
Icom IC-M330 series marine VHF transceiver also M3 × 6 mm
Wurth Elektronik WA-HEX hexagonal lock screw also M3 × 10 mm
Crowcon Xgard Bright fixed gas detector (mining/oil & gas) also M3 × 6 mm

Questions about Eurorack panel jacks and pots screws

What size screw does Eurorack panel jacks and pots use?: M3 × 6–10 mm for panel-mounted jack and pot hardware uses metric M3-class brackets.
How long are the screws in Eurorack panel jacks and pots?: The records range from 6 to 10 mm depending on the position, so match each screw to its own hole.
What is the thread pitch of an M3 screw?: 0.5 mm (coarse), which is the standard pitch for M3 machine screws; a 0.35 mm fine pitch exists but is uncommon. The tap drill is 2.5 mm and the normal clearance hole is 3.4 mm.
What screwdriver do I need for Eurorack panel jacks and pots?: The sources do not name the drive. For M3, Phillips heads normally take PH1 and Torx heads T10; socket heads take a 2.5 mm hex key.
Can I use an imperial screw instead of M3?: No. Imperial look-alike: #5-40 (3.18 mm) or #4-40 — neither interchanges with M3. Use a true M3 screw so it does not cross-thread or strip the hole.
Where can I buy replacement screws for Eurorack panel jacks and pots?: TechSpareWarehouse (our own store) lists M3 x 6mm, M3 x 8mm and M3 x 10mm, which match lengths in the records above.

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