Bolt and nut M8 × 30
18 min2 parts
Threaded rod M12 × 40
3D printing1 partNo supports
A 40 mm piece of M12 threaded rod without a head, with ISO thread and chamfered ends so a nut starts from either side. It works as a stud for knobs and handles, as an axle locked with nuts, or as a connector between two printed parts with threaded holes. To screw it into a threaded hole, lock two M12 nuts against each other on the rod and turn the upper one – gently, as a printed thread takes less force than steel.
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- Size
- 11.8 × 11.8 × 40 mm
- Print time
- ≈ 20 min
- Filament
- ≈ 2.8 g PLA
- Parts
- 1
Print settings
- Material
- PLA
- Layer height
- 0.12 mm
- Infill
- 40%
- Walls
- 3
- Supports
- none
Worked for others:
Tip: Print as shown: bolt standing on its head, nut lying flat, no supports needed. A layer height of 0.12–0.16 mm makes the thread cleaner. Printed bolts break more easily than metal ones – don't tighten them hard.
Estimated by our slicer-like calculation for a 0.4 mm nozzle. Your slicer may show slightly different values.
Adjust it
- Thread: M12 × 1.75 mm
- Threaded rod: 40 mm long
- Thread Ø: 11.8 mm (nominal 12 mm)
This model comes from the “Bolt and nut” generator. Open it there with these settings and change any size you like.
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