Knurling bolt and nut

by akira3dp0, published

Knurling bolt and nut by akira3dp0 Apr 2, 2016

Verified Files

80 Share
Download All Files

Thing Apps Enabled

Order This Printed View All Apps



Use This Project

Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag.

Print Thing Tag

Thing Statistics

48703Views 19413Downloads Found in Parts


<UPDATE Sep 20,2016>
There are knurling bolts and a nut that modeling on Autodesk Fusion 360.
I got a inspiration form Knurled surface finishing library by aubenc. Thanks!

I've prepared a bolt of various lengths.
So, print a bolt you want.

Bolts are M15, pitch 2.0, length 20, 30, 40, 50, 60mm, and Head OD 30mm, height 20mm.
A nut is M14, pitch 2.0, height 20mm.

See my YouTube about how to making a knurling on Fusion 360 Modeling a knurling on Autodesk Fusion 360

More from Parts

view more

All Apps

3D Print your file with 3D Hubs, the world’s largest online marketplace for 3D printing services.

App Info Launch App

Auto-magically prepare your 3D models for 3D printing. A cloud based 3D models Preparing and Healing solution for 3D Printing, MakePrintable provides features for model repairing, wall thickness...

App Info Launch App

Kiri:Moto is an integrated cloud-based slicer and tool-path generator for 3D Printing, CAM / CNC and Laser cutting. *** 3D printing mode provides model slicing and GCode output using built-in...

App Info Launch App
KiriMoto Thing App

With 3D Slash, you can edit 3d models like a stonecutter. A unique interface: as fun as a building game! The perfect tool for non-designers and children to create in 3D.

App Info Launch App

Print through a distributed network of 3D printing enthusiasts from across the US, at a fraction of the cost of the competitors. We want to change the world for the better through technology, an...

App Info Launch App

Quickly Scale, Mirror or Cut your 3D Models

App Info Launch App

3D Print a wide range of designs with Treatstock. Easy to use tools to get the perfect result. The global 3D printing network that connects you with high-quality and fast working print services nea...

App Info Launch App

Thank you. I'm new to 3d printing. I have a MP Select v2 and printing with PLA. Does a design like this need a raft? Thank you.

Also, do you have temperature recommendations? The software is using 195/50 by default.


Thanks for your comment.
I didn't use a raft for this model and other models. But many people prefer using a raft.
I like lower temperature around 175 degrees, because I think that the overhang was printed beautiful. But The optimum temperature depends on the filament you use.
Please try to print with the various conditions.

Thank you. I ended up printing this with a raft at 195/50 and it came out great. The threads are a little tight, but other than that it looks great. I may try again without a raft and making the nut just slightly larger.

Mar 3, 2017 - Modified Mar 3, 2017

I love this thing! I'm (very) late to the 3D printing game, mostly printing things from here while I get used to setup and slicer settings. Printed a couple in plain old PLA, first one was no good (totally my fault - bad slicer settings). The second was nice, and when I realized how much fun the 20mm version was as a fidget toy I printed one out in wood PLA with 100% infill for weight, and it was great. The wood filament I bought was disappointing (just like beige plastic really), so I bought another brand which is on the printer now and looks (and smells) much better. I like it much better than ball bearing fidget toys. I'll post some pics later.

Anyway, thanks for the model, and also for the how-to video. I'm learning Fusion after knowing 3DS Max years ago, and it was really helpful.

Thank you so much for your comment. I am looking forward to your making things. Can you tell me which wood filament you use and show me it.
The functions of Fusion 360 continue to improve greatly. I think there is better way, please try looking it.

Hi, sorry for slow reply! I tried Robo 3D first (https://smile.amazon.com/gp/product/B0142PHGPK) and then MG Chemicals (https://smile.amazon.com/gp/product/B018MG4SFQ). To be honest, after the prints were all done there's not much difference, the MG smelled a little more woodlike while printing, but they both came out more plasticky than wood-like. Not too surprising, I guess. I imagine sanding and staining would help. They are both nicely heavy when printed at 100% infill. I'll add a couple of pics in "I Made It". Think I'm off to buy a Wanhao today - want that bigger build plate that the Monprice Mini I have now.

Fusion learning is coming along, it's an amazing piece of software!



Thank you for your comment and impression of wood filament.
I will try printing with wood filament!

Nice job. I scaled the nut to 30.5mm both x and y axis and it fits the bolt better.

Between the bolt and nut printed original size with my printer is smooth.
I would appreciate it if you could change some setting and print again.

I actually used your video to do some knurled components before ever finding this post!

What would be really cool would to be able to get different M sizes for the bolts and nuts.

I am glad that my Youtube video was useful for you.
The difference of M sizes between bolt and nut was calculated automatically by Autodesk Fusion 360.
So the size of the base cylinder for bolt and hole for nut are same.

I understand the difference in the nut/bolt size. What I meant is that the bolt/nut are M15 size, it would be nice to be able to make them in different sizes. So let's say I need M6 size, it would be great to be able to specify and do it.

Anyway these are really good.

Oops, I am sorry for making some mistake. English is difficult for me.
OK, I will make the bolt and nut you want.

Thanks, my pleasure!

Work really well, thank you!

Thanks, JorgTheElder !

Mr. Akira,

If it is not too difficult, would appreciate if you can make 40mm, 50mm and 60mm models.

Thanks and regards,

OK, I did. Here you go!

Oh Great! Thank you very very very much Akira-san.


A little tight in ABS but printed nice none the less.
.2mm layers on a Makerfarm i3 8"

Print out, they are beautiful and clean looking, well done

Thanks wwwayne! Your avatar icon is so nice.

Too tight in petg :(

Is petg filament high hardness?

I dont know if it is hard against diamond or chalk, but I can tell that it has a high resistance to flex :D

This is really nice and the how-to video is super-interesting! I have been wondering how to make these simple repeating patters (like the grip outside of the nut) and threads.

Thank you so much, timppajee! I had same wonder like you. I saw the how-to video about making a knurling bolt on anoter 3Dcad Solid Works, on YouTube. But it is some difficutlty on Fusion 360. So I had thought making it on Fusion 360 by trial and error. But making Threads on Fusion 360 is easy.

Printed it in PLA and everything looks fine, though the bolt is slightly too large to fit into the nut.

Any idea what could be causing this?

.2 layer height at 2400mm/min

Umm, I have no idea.
Now I add the bolt that screw length is same as the nut.
Thanks Electrichammer!

Figured out why it wasn't working (along with many other prints that had to fit together!).

Turns our for some reason Simplify3D was adding about a 1mm thickness to all my prints. Still don't know why, though works well through any other slicer.


Oops, I misunderstood your comment.
I think the extrusion rates of filament on your 3dprinter is little big. So the extruded filament from a nozzle is more fat than the nozzle diameter. As a result, the bolt is slightly too large and the hole of nut is slightly too small.
Please check and calibrate about your 3dprinter, one is a feedrate of steppermotor for extruder on your firmware, another is a extrution multiplier of your slicer.

Wow, what printer have you used? :D!

Prusa Mendel i2 I built ;-)

Awesome quality! I love it, I built a prusa i3, but the quality is poor, is too far away from yours prints quality, can you tell me about your printer settings? nozzle diameter, layer height, speed, thanks!

Thanks your comment.
Nozzle diameter: 0.4mm, layer height: 0.1mm, print speed: 50mm/s (outer shell speed:40mm/s).
I think lower nozzle temparature is better. I set 200-210˚c for ABS filament.
And turn cooling fan on.
There are so many small overhangs, so thinner layer make printing more beautiful.
Good printing, ea00d009!!

Cooling fan on using ABS? but how avoid the warping problems or splitting layers? I'm sorry about my basic english... thanks!

Sorry, we may not to cooling for ABS filaments. But I always turn fan on.
There is no warping and splitting, because I have calibrated my printer, especially about a distance from nozzle to bed, filament extrude rate. Oh I use glue stick for a glass on the heated bed. And if I print the model shape that will wrap, I use brim.