Voron 2.4 bed extrusions screw size
M5 · 16 to 40 mm long
The screws used on Voron 2.4 bed extrusions are M5 in lengths from 16 to 40 mm.
It is listed for bed extrusion frame joints.
This entry is marked confirmed and comes from VoronDesign Voron-2 BOM issue #256.
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.
Voron 2.4 bed extrusions 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 | 16–40 mm | 0.8 mm | not stated | not stated | bed extrusion frame joints | Confirmed |
Fitment records and sources
bed extrusion frame joints
pitch 0.8 mm · tap 4.2 mm · clearance 5.5 mm · PH2 / Torx T25
Source: VoronDesign Voron-2 BOM issue #256
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: measure from under the head to the tip for pan, button, wafer and cap heads; countersunk (flat) heads are measured overall.
- The records span 16–40 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
- 2020 extrusion end-tap holes vary between 4.2mm (M5) and 5mm (M6) core depending on manufacturer — always measure before tapping.
- M5x0.8 is the de facto universal bike thread — confirm 0.8mm pitch before threading into carbon or alloy bosses.
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Devices whose records share a thread with Voron 2.4 bed extrusions, closest length match first.
- Prusa i3 MK3S/MK4 frame and Y-rod holders also M5 × 16–40 mm
- Printer / CNC extrusion frame bolts also M5 × 16–25 mm
- 2020/2040 extrusion end tap also M5 × 16 mm
- Robotiq 2F-85 / 2F-140 gripper also M5 × 25 mm
- Voron gantry and frame joints also M5 × 16 mm
- Voron 2.4 350 (LDO kit) gantry and frame also M5 × 40 mm
- 2040 extrusion T-nuts also M5 × 16–20 mm
- 2020 T-slot hammer head bolts also M5 × 16–25 mm
Questions about Voron 2.4 bed extrusions screws
- What size screw does Voron 2.4 bed extrusions use?
- M5 × 16–40 mm for bed extrusion frame joints.
- How long are the screws in Voron 2.4 bed extrusions?
- The records range from 16 to 40 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 Voron 2.4 bed extrusions?
- 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.