OpenBuilds C-Beam Machine screw size
M5 · 25 to 30 mm long
The screws used on OpenBuilds C-Beam Machine are M5 in lengths from 25 to 30 mm.
It is listed for low-profile screws joining V-slot/C-Beam extrusions and gantry plates.
Head and drive, as the source states them: low-profile head.
This entry is marked confirmed and comes from OpenBuilds C-Beam official part list.
For reference, M5 is 5 mm across the threads at 0.8 mm pitch. The imperial size people confuse it with: #10-32 (4.83 mm) — the other common rack thread; check before mixing.
OpenBuilds C-Beam Machine 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 | 25–30 mm | 0.8 mm | Low-profile head | not stated | low-profile screws joining V-slot/C-Beam extrusions and gantry plates | Confirmed |
Fitment records and sources
low-profile screws joining V-slot/C-Beam extrusions and gantry plates
pitch 0.8 mm · tap 4.2 mm · clearance 5.5 mm · PH2 / Torx T25
Source: OpenBuilds C-Beam official part list
How to check the screw before you buy
- Printer and CNC builds usually publish a bill of materials; when it lists a length, follow it, since extrusion T-nuts and motor faces have fixed thread depths.
- 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: for low-profile head screws, measure from under the head to the tip (countersunk heads are the exception: they are measured overall).
- The records span 25–30 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source does not name the drive. Standard M5 heads take PH2 for Phillips and T25 for Torx, and a 4 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 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
- Some scooters and appliances use self-tapping screws of similar diameter rather than true M5 machine threads.
- Commercial washer-extractor cabinets mix DIN 933 (hex head, full thread) and DIN 84A (slotted pan/cheese head) M5 screws for different panels on the same machine line, so a single family/brand isn't consistent across all fasteners.
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Devices whose records share a thread with OpenBuilds C-Beam Machine, closest length match first.
- Voron 2.4 frame corner brackets also M5 × 25–30 mm
- CNC router spindle clamp also M5 × 25 mm
- Voron 2.4 / Trident also M5 × 25–30 mm
- 2020 T-slot hammer head bolts also M5 × 25 mm
- OpenBuilds V-Slot T-nut bolts also M5 × 25 mm
- Voron 2.4 bed extrusions also M5 × 25–30 mm
- Prusa i3 MK3S/MK4 frame and Y-rod holders also M5 × 25–30 mm
- Printer / CNC extrusion frame bolts also M5 × 25 mm
Questions about OpenBuilds C-Beam Machine screws
- What size screw does OpenBuilds C-Beam Machine use?
- M5 × 25–30 mm for low-profile screws joining V-slot/C-Beam extrusions and gantry plates.
- How long are the screws in OpenBuilds C-Beam Machine?
- The records range from 25 to 30 mm depending on the position, so match each screw to its own hole.
- 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 OpenBuilds C-Beam Machine?
- The sources do not name the drive. For M5, Phillips heads normally take PH2 and Torx heads T25; socket heads take 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.