What size screw does Voron 2.4 / Trident use?

M3 × 6–30 mm for gantry blocks, panel mounts, bed mounts, electronics bay; M5 × 8–40 mm for frame corner brackets, extrusion joints, gantry rail mounting.

How long are the screws in Voron 2.4 / Trident?

The records range from 6 to 40 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 Voron 2.4 / Trident?

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 Voron 2.4 / Trident?

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

Voron 2.4 / Trident screw size

M3 / M5 · 6 to 40 mm long

If you are replacing a screw on Voron 2.4 / Trident, the thread is M3 and M5 in lengths from 6 to 40 mm.

There are 2 separate fitment records for it, including gantry blocks, panel mounts, bed mounts, electronics bay (M3) and frame corner brackets, extrusion joints, gantry rail mounting (M5).

2 of the 2 records are marked confirmed, drawn from 2 sources (VoronDesign Voron-2 BOM (GitHub issue #256) and VoronDesign Voron-2 BOM (GitHub issues #256, #162)).

M3 means a 3 mm nominal diameter with a 0.5 mm thread pitch. Imperial look-alike: #5-40 (3.18 mm) or #4-40 — neither interchanges with M3.

Voron 2.4 / Trident 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	6–30 mm	0.5 mm	not stated	not stated	gantry blocks, panel mounts, bed mounts, electronics bay	Confirmed
M5	8–40 mm	0.8 mm	not stated	not stated	frame corner brackets, extrusion joints, gantry rail mounting	Confirmed

Fitment records and sources

M36, 8, 10, 12, 16, 20, 30mmconfirmed

gantry blocks, panel mounts, bed mounts, electronics bay

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

Source: VoronDesign Voron-2 BOM (GitHub issue #256)

M58, 10, 16, 40mmconfirmed

frame corner brackets, extrusion joints, gantry rail mounting

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

Source: VoronDesign Voron-2 BOM (GitHub issues #256, #162)

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 M3 screw measures about 3 mm with calipers (usually a hair under). This device also uses M5, so measure each screw rather than assuming they match.
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 6–40 mm, which means different positions take different lengths — match each hole to its own screw.
Driver: the source does not name the drive. Standard 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 / M5

DIN-rail terminal blocks are near-universally M3 across Dinkle, TE, Omron and RND, but torque differs (0.5-0.8 Nm) — over-torquing an M3 terminal screw strips it instantly.
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.
2020 extrusion end-tap holes vary between 4.2mm (M5) and 5mm (M6) core depending on manufacturer — always measure before tapping.
The 'GoPro thread' is M5-0.8, a de facto standard on third-party mounts, and is not the imperial 1/4-20 tripod 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.

M3 x 6mm Replacement Screws for XLR Audio Connectors Phillips Wafer Head 50-Pack $4.99
M3 x 6mm Phillips Wafer Head Carbon Steel Machine Screws for XLR Audio Connectors | 50-Pack (Black) $4.99
M3 x 8mm Screws for Leather Spike Attachments Guitar Straps 10-Pack $4.99
M3 x 8mm Phillips Wafer Head Screw for SLA Resin 3D Printer VAT Film - Single Replacement Black $0.10 each · min. 50
M3 x 10mm Phillips Wafer Head Screw for Sim Racing Wheel Paddle Shifter - Single Replacement Black $0.10 each · min. 50
M3 x 10mm Phillips Wafer Head Screw for RC Car/Truck Chassis Mount - Single Replacement Black $0.10 each · min. 50
M3 x 6mm Phillips Wafer Head Screw for 3D Printer Frame Assembly - Single Replacement Black $0.10 each · min. 50
M3 x 6mm Phillips Wafer Head Screw for Boutique Guitar Pedal Enclosure - Single Replacement Black $0.10 each · min. 50

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The same screw also fits

Devices whose records share a thread with Voron 2.4 / Trident, closest length match first.

GT2 timing pulley grub screws also M3 × 6 mm
2020 T-slot hammer head bolts also M5 × 8–25 mm
Voron 2.4 gantry and carriage hardware also M3 × 6–30 mm
Voron StealthBurner toolhead (stock hotend) also M3 × 8 mm
Shapeoko 5 Pro CNC router also M5 × 10 mm
2040 extrusion T-nuts also M5 × 8–20 mm
Bambu Lab X1 / P1 / A1 frame and toolhead also M3 × 6–30 mm
Bambu Lab X1/P1/AMS spare screw kit also M3 × 6–20 mm

Questions about Voron 2.4 / Trident screws

What size screw does Voron 2.4 / Trident use?: M3 × 6–30 mm for gantry blocks, panel mounts, bed mounts, electronics bay; M5 × 8–40 mm for frame corner brackets, extrusion joints, gantry rail mounting.
How long are the screws in Voron 2.4 / Trident?: The records range from 6 to 40 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 Voron 2.4 / Trident?: 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 Voron 2.4 / Trident?: TechSpareWarehouse (our own store) lists M3 x 6mm, M3 x 8mm and M3 x 10mm, which match lengths in the records above.

Heads up: shipping delay