Carbide3D Shapeoko 5 Pro CNC router screw size
M3 / M4 / M5 / M6 · 6 to 30 mm long
If you are replacing a screw on Carbide3D Shapeoko 5 Pro CNC router, the thread is M3, M4, M5 and M6 in lengths from 6 to 30 mm.
There are 4 separate fitment records for it, including M3x6mm Socket Head Screws used repeatedly to secure the drag chain at both ends and to the (M3), M4x6mm Button Head Screws (drag chain hardware) and M4x30mm BHCS used to attach the ground (M4) and X-Motor Hardware: four M5x10mm Socket Head Cap Screws used to secure the X-motor to the mo (M5), plus 1 more in the table below.
Head and drive, as the sources state them: button and socket cap heads and Hex socket (Allen) drive.
4 of the 4 records are marked confirmed, drawn from 1 source (guides.carbide3d.com).
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.
Carbide3D Shapeoko 5 Pro CNC router 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 mm | 0.5 mm | not stated | not stated | M3x6mm Socket Head Screws used repeatedly to secure the drag chain at both ends and to the Y-Left carriage | Confirmed |
| M4 | 6–30 mm | 0.7 mm | Button head | Hex socket (Allen) | M4x6mm Button Head Screws (drag chain hardware) and M4x30mm BHCS used to attach the grounding block | Confirmed |
| M5 | 10 mm | 0.8 mm | Socket cap | not stated | X-Motor Hardware: four M5x10mm Socket Head Cap Screws used to secure the X-motor to the motor mount | Confirmed |
| M6 | 12–30 mm | 1 mm | Socket cap | Hex socket (Allen) | Assembly manual lists M6x25mm SHCS for Hulk Clamps, M6x20mm and M6x30mm/M6x12mm SHCS for gantry and end caps, M6x16mm BHCS for Y-axis assembly (eight required), and 'tighten the four (4) M6 screws, securing the router in the spindle mount' | Confirmed |
Fitment records and sources
M3x6mm Socket Head Screws used repeatedly to secure the drag chain at both ends and to the Y-Left carriage
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
M4x6mm Button Head Screws (drag chain hardware) and M4x30mm BHCS used to attach the grounding block
pitch 0.7 mm · tap 3.3 mm · clearance 4.5 mm · PH2 / Torx T20
X-Motor Hardware: four M5x10mm Socket Head Cap Screws used to secure the X-motor to the motor mount
pitch 0.8 mm · tap 4.2 mm · clearance 5.5 mm · PH2 / Torx T25
Assembly manual lists M6x25mm SHCS for Hulk Clamps, M6x20mm and M6x30mm/M6x12mm SHCS for gantry and end caps, M6x16mm BHCS for Y-axis assembly (eight required), and 'tighten the four (4) M6 screws, securing the router in the spindle mount'
pitch 1 mm · tap 5 mm · clearance 6.6 mm · PH3 / Torx T30
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 M4 / M5 / M6, 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: for button head / socket cap screws, measure from under the head to the tip (countersunk heads are the exception: they are measured overall).
- The records span 6–30 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source names a Hex socket (Allen) drive. For comparison, standard M3 heads take PH1 (Phillips) or T10 (Torx), or a 2.5 mm hex key.
- 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 / M4 / M5 / M6
- M3 is the most common FPV screw, but length must match arm and stack thickness — too long can short motor windings or crack frame plates.
- Grounding-lug screws on Siemens and Beckhoff gear (M4) are earth hardware, not structural mounting screws — don't reuse them to hold a module.
- Concept2 rowers/ergs look metric-friendly but use imperial 1/4-20 hardware throughout — M6 will NOT thread in; do not force it.
- Cymbal stand top threads (M6) are a separate standard from tension rod/lug threads (M5) on the same drum kit, so hardware is not interchangeable between the two locations.
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 6mm Phillips Wafer Head Screw for 3D Printer Frame Assembly - Single Replacement Black
$0.10 each · min. 50
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M3 x 6mm Phillips Wafer Head Screw for Boutique Guitar Pedal Enclosure - Single Replacement Black
$0.10 each · min. 50
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M5 x 10mm Black Wafer Head Bike Fender & Rack Screws for Tern MTR Fenders, Blackburn EX-1 Rack, ENVO Stax & René Herse Fender Set – 10-Pack Replacement
$5.99Choose size -
M5 x 10mm Black Wafer Head Folding Mechanism Screws for GOTRAX GXL V2, Rival, XR Ultra & XR Elite – 10-Pack Replacement
$5.99Choose size
More in 3D Printing, CNC & Robotics
The same screw also fits
Devices whose records share a thread with Carbide3D Shapeoko 5 Pro CNC router, closest length match first.
- Linear rail carriage block also M3 × 6 mm
- NEMA 23 stepper motor face also M5 × 10 mm
- 3030 extrusion T-nuts (heavy duty) also M6 × 12–25 mm
- Makeblock cap screw round head hex M4 (catalog part) also M4 × 22–30 mm
- Arduino Uno / shield mounting holes also M3 × 6 mm
- Voron 2.4 frame corner brackets also M5 × 10 mm
- 2020 extrusion T-nuts (standard) also M5 × 10 mm
- Voron 2.4 3D printer also M5 × 10 mm
Questions about Carbide3D Shapeoko 5 Pro CNC router screws
- What size screw does Carbide3D Shapeoko 5 Pro CNC router use?
- M3 × 6 mm for M3x6mm Socket Head Screws used repeatedly to secure the drag chain at both ends and to the Y-Left carriage; M4 × 6–30 mm for M4x6mm Button Head Screws (drag chain hardware) and M4x30mm BHCS used to attach the grounding block; M5 × 10 mm for X-Motor Hardware: four M5x10mm Socket Head Cap Screws used to secure the X-motor to the motor mount; M6 × 12–30 mm for assembly manual lists M6x25mm SHCS for Hulk Clamps, M6x20mm and M6x30mm/M6x12mm SHCS for gantry and end caps, M6x16mm BHCS for Y-axis assembly (eight required), and 'tighten the four (4) M6 screws, securing the router in the spindle mount'.
- How long are the screws in Carbide3D Shapeoko 5 Pro CNC router?
- The records range from 6 to 30 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 Carbide3D Shapeoko 5 Pro CNC router?
- The source lists a Hex socket (Allen) drive. Standard M3 heads otherwise take PH1 (Phillips) or T10 (Torx), or 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 Carbide3D Shapeoko 5 Pro CNC router?
- TechSpareWarehouse (our own store) lists M3 x 6mm, which matches the length in the records above.