EP Fasteners & Threaded Holes
Produces Printable Nuts, Bolts, Screws and Tapped or threaded Holes for 3D parts.
EP Fasteners & Threaded Holes

Create Nuts, Bolts, Washers, Tapped/Threaded Holes, and Drilled holes in to your 3D models.
Produces printable 3D components. The threaded or drilled holes will glue to two parallel surfaces and cut openings in both surfaces. Produces usable threads in standard Metric and SAE sizes through 30mm.

Adds EP Fasteners & Holes to the tools menu.

Open Tools/EP Fasteners & Holes, Select the type of fastener and dimensions and press OK. Then place your new component.

In the case of through holes, the component will be just a circle, but once placed, another component will be built and placed on the nearest parallel surface in the direction of the hole. Both Components will glue to the surface and cut openings.


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We usually balance the parts that need to fit in another one with 0.3mm. To do this with the workpiece, you need to reduce the x and https://writemyessayguru.com axes by 0.96. If you forget to do this and just print your workpiece as it is, it will not fit.

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Sérgio A's picture

Obrigado ! vai ser muito útil para mim.
Um abraço.
Sérgio Alano

When inserting a 1/4" coarse nut in my Windows 2018 Pro version, the threads protrude beyond the bottom of the nut.

Is onyone else having this issue and know of a fix?

Hello evrerybody,

I installed this extention. When i click to make a fastener hole, the windows closed and nothing happened. For a hole it's ok. I was trying de re install without results. Can you help me please ??

kapenske ..'s picture

I too had problems like this. I found it usually happened when trying to put a threaded hole into a "component". In most cases I just exploded the component, then applied the threaded hole, then recreated the component. After learning that lesson I just added the threaded holes before ever tuning the object into a component. The more I worked with it the better I got.

I also use Solid Inspector2 to review solids and make sure they are clean. It's a great tool for producing very clean drawings. However, Solid Inspector doesn't seem to like EP Fasteners. It finds all kinds of (what it considers) bad faces and lines and when it cleans the solid it deletes most of it.

Editing the threaded holes and bolts can be quite a challenge. EP Fasteners was apparently created for 3D printing, and I'm guessing that for that application it works as intended. I prefer VERY clean drawings but given the option of creating accurate thread images (time consuming) versus plopping one in and moving on, I use EP Fasteners.

kapenske ..'s picture

Just FYI - Checking the code in "EPFastenerConstants.rb" I see that the option for Full Length Thread does not apply to all thread diameters. For US threads the dia must be 1/2 to 1 inch. For metric it must be M4 to M30. There are default thread lengths hard coded so no option for the user to determine thread length on those bolt sizes.

John L.'s picture

Please make a Mac version! What a pain to have to do all this on a PC, then mail to a Mac.

Josh V's picture

Finally got this extension up and working...and of course the sizes I need are not available. M18, then jumps to M20, skipping M19 which is used for dremel nose thread. Strange.


I have just uploaded through SketchUp Extension warehouse the EP Fasteners & Threaded Holes extension. I have SketchUp 17.2 running on Mac OS Sierra 10.12.

Upload was successful and extension appears in the tool menu, but when I open the EP extension window, nothing appears, no matter how I select my object.

Is anyone aware of this issue?

Hi Jean-Francois - I think the extension only works on Windows OS.


Hi Jean-Francois - I think the extension only works on Windows OS.


Blank screen on Mac 2017

Sadly, there doesn't seem to be a useful thead library on Sketch Up. Maybe I should use a package designed for professionals instead of a kids's toy? (In 7th day of trial)

(BTW: The name here (Stupid M) comes from the fact that the e-mail got lost when I registered, so I was screwed on that e-mail address - there is no way to resend the verification e-mail, they say you can reset your password, but it won't actually send you a reset if you haven't verified the e-mail, and they are too "Stupid' to be able get their registration correct..)

I write software for a living and have an IQ of 140, so I'm not the one I'm calling stupid.

George v's picture

It doesn't work in 2017. Will there be an update to make it compatible?

I am also facing the same issue, did you find any fix for this ?

I take back what I said earlier this works great make a more realistic rendering on a project nice extention

satya b's picture

thankyou thankyou so much , its such a great extension .

Love the idea of this program, but is there any chance it will be coming to the Mac OS?

Owen S's picture

its good, but what is the thread pitch? it only comes in coarse, fine, and extra fine. i'm trying to make a 1/4-20 hole, but I dont know which pitch is 20.

kapenske ..'s picture

1/4-20 us coarse thread

Makarand A.'s picture


It works well for right hand threads and its a good tool to work with.

I have an application where LEFT hand metric threads are required.

Can you suggest how to use EP Fastners tool for LEFT hand metric threads both internal and external.

Best Regards,
Makarand Acharya

Create a right hand thread and then use "flip-along" from the 'right-click' menu to change the thread to left hand.

good luck


Thank You Raymond S., I logged in just to "shake your hand" and send you some thumbs up. Your suggestion worked perfectly. Should be in the EP Fasteners FAQs, that through hole draws a left handed thread and flip along axis can be used to correct that. Kudos!!!

Great plugin!!! Just one question: is there a way to resize threads/holes?
If I'm using 5/8 thread, how can I get 5/8 hole, resized to 4x?

Excellent extension to not say the best !
Gaz thread are missing.

Eugen D's picture

I have some problem with fasteners generation.
The thread have a strange distortion.
Knows somebody why?
Is a solution for this?

PS. Is posible to add here a image?
For exemplification!

This is a great plugin that significantly improves Sketchup for any engineering type layouts. The v1.0.4 version runs fine on 64 bit Wndows 10 pro and Sketchup 2017. Like all plugins there are always bugs and things that we would like to see. In this case:

Bug - tapped holes are drawn with LH threads - this can easily be fixed by using 'flip along.." but it would be nice to get it fixed perhaps even offering both LH and RH options.

I would like to see:
1) more choices of head style, i.e., button head, flat head,etc.
2) Studding
3) Shoulder bolts, i.e., bolts with less than a full thread length
4) Larger selection of nuts styles, i.e., lock nuts, half nuts, etc.
5) Selection of lock washers styles
6) Countersunk holes

For those of you that are interested Jay Watson did post an update v1.0.4 to the SketchUcation forum site here (http://sketchucation.com/forums/viewtopic.php?f=323&t=61557).
I think the 1.0.4 version goes along way to addressing the MAC issues and some of the other concerns listed below in other posts.

Not sure that Jay Watson is continuing support for this plugin.


 *'s picture

I loaded it in 2015 and 2017 on MacOs Sierra and I only get a blank screen. Would really love to use it. If someone figures it out please post. Willing to support the effort.

I loaded in both 2016 & 2017 on W7, 16GB Ram. It says it is creating bolt but after working for 10+ minutes, nothing happens.

David A's picture

same here

I get exactly the same. sketchup 2017 MacOS

Did anyone solve this?

Luca Delbarba d's picture

Can we change the arc number to get smoth result?
It dosen't take the default setting for arc and circle.

Holden S's picture

Works for me, but I the extension creates a flat at the beginning and end of a tapped hole, so it is not really a true thread.

very nice

thanks Samir S.

all is perfect in sketchup 2017 !

i checked all ruby code files, no malware inside, you can download and install.

great thanks Samir, nice job !

Please support for sketchup 2017

Encounter, as others, some troubles on windows 10 + sketchup 2016
And also with the french regional settings

So i decide to get an eyes on the programmation and made the plugin fully functionnal now, even with french regional settings or automatic thread or hole.

I wrote to Jay Watson to give him the changes made, but didn't got answers yet.

So i don't know if i can post myself the modified plugin as i am not the real author.

[Edited 01/12/2016]
Well under is a link to download the modified plugin.
Remember i test it only on my PC (windows10 / sketchup 2016), so let me know if you still encounter troubles.


Daniel G's picture

Thanks, it is working now, at least the Thread

Chin Huat T's picture

That's good!
Busy now. Will test and let you know.

Thanks and Regards,

25505 users
2.05 MB
EP Fasteners & Threaded Holes 1.0.0; April 3, 2015
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