Eurorack synth module panels (Befaco Knurlies) screw size
M2.5 · 7 mm long
The screws used on Eurorack synth module panels (Befaco Knurlies) are M2.5, 7 mm long.
It is listed for panel screws sold as M3 / M2.5 x 7mm for 2mm and 3mm panels.
This entry is marked confirmed and comes from exploding-shed.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.
Eurorack synth module panels (Befaco Knurlies) 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 | 7 mm | 0.45 mm | not stated | not stated | Panel screws sold as M3 / M2.5 x 7mm for 2mm and 3mm panels | Confirmed |
Fitment records and sources
Panel screws sold as M3 / M2.5 x 7mm for 2mm and 3mm panels
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
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 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.
- The record states 7 mm. Going longer risks bottoming out or touching parts behind the hole; going shorter loses thread engagement.
- 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
- Eurorack rail thread depends on rail brand: Vector/SynthRacks rails use M2.5, others use M3.
- M2.5 pitch is 0.45mm vs M3's 0.5mm and M2's 0.4mm — forcing the wrong one strips plastic bosses instantly.
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.
More in Electronics, Racks & Enclosures
The same screw also fits
Devices whose records share a thread with Eurorack synth module panels (Befaco Knurlies), closest length match first.
- Wurth Elektronik WA-SSTIE steel spacer stud also M2.5 × 7 mm
- Eurorack module-to-rail mounting screws (Vector/SynthRacks rails) also M2.5 × 7 mm
- PW-Sat2 CubeSat secondary structure and panels also M2.5 × 7 mm
- Wurth Elektronik WA-SPAIE plastic spacer stud also M2.5 × 7 mm
- Lenovo ideapad 330E-15IKB D also M2.5 × 7 mm
- Lenovo V340-17IWL also M2.5 × 7 mm
- HP Compaq nx6115 also M2.5 × 7 mm
- Lenovo ideapad 300-14ISK also M2.5 × 7 mm
Questions about Eurorack synth module panels (Befaco Knurlies) screws
- What size screw does Eurorack synth module panels (Befaco Knurlies) use?
- M2.5 × 7 mm for panel screws sold as M3 / M2.5 x 7mm for 2mm and 3mm panels.
- How long are the screws in Eurorack synth module panels (Befaco Knurlies)?
- The record gives 7 mm. Measure the original from under the head (overall for a countersunk head) to confirm before ordering.
- 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 Eurorack synth module panels (Befaco Knurlies)?
- 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.