# Z axis set screws are stripped
**URL:** https://forum.onefinitycnc.com/t/z-axis-set-screws-are-stripped/30714
**Category:** Elite Series (Masso & Redline) (Gen 1)
**Created:** [February 2, 2025, 8:50pm UTC](https://forum.onefinitycnc.com/t/z-axis-set-screws-are-stripped/30714 "2025-02-02T20:50:47Z")
**Posts on this page:** 12
**Page:** 1
### Author:  [@ricknola](https://forum.onefinitycnc.com/u/ricknola)
#### Post date: [February 2, 2025, 8:50pm UTC](https://forum.onefinitycnc.com/t/z-axis-set-screws-are-stripped/30714/1 "2025-02-02T20:50:47Z")
I attempted to install a new spindle on my elite and all the set screws strripped with one turn.
I am not sure how to fix or where to bu6y new screws if i can have someone remove the screws
can someone help us out with info\>
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### Author:  [@robcnc](https://forum.onefinitycnc.com/u/robcnc)
#### Post date: [February 2, 2025, 9:03pm UTC](https://forum.onefinitycnc.com/t/z-axis-set-screws-are-stripped/30714/2 "2025-02-02T21:03:21Z")
Here is a post of common screw sizes for the Onefinity machines, not sure exactly which screws you’re referring to.
> [@Common Bolt / Screw Types on the Onefinity](https://forum.onefinitycnc.com/t/common-bolt-screw-types-on-the-onefinity/3057):
>
> X Rail 8 Bolts holding down the X Rail to Y gantry blocks : m6 x 22mm long Y Rail to QCW 16 bolts holding the Y feet to the QCW blocks: m6 x 22mm long Stiffy 2 M5-0.8 x 16mm (ends) 2 M6-1.0 x 14mm (gantry) 2 M6x6 7380-10.9 (short) Z Slider Z-16 4 bolts holding the z slider to X gantry: m5 low head x 12mm long 2 bolts squeezing the mount together : M5 x 30mm Z Slider Z-20 4 bolts holding the z slider to X gantry: M5 socket head x 20 Z Slider Z-20 & Z-16 accessory mounting holes are …
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### Author:  [@HardtailSr](https://forum.onefinitycnc.com/u/HardtailSr)
#### Post date: [February 4, 2025, 6:06pm UTC](https://forum.onefinitycnc.com/t/z-axis-set-screws-are-stripped/30714/4 "2025-02-04T18:06:07Z")
if you have a local machine shop in your area, they can do what you want but it would probably be costly. Or if you have a community college with a machining dept they would probably do it for free. I would do it by drilling it out and putting in a press fit piece and re tapping it. just remember to use anti seize when you put it back together
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### Author:  [@tmuka](https://forum.onefinitycnc.com/u/tmuka)
#### Post date: [February 4, 2025, 7:00pm UTC](https://forum.onefinitycnc.com/t/z-axis-set-screws-are-stripped/30714/5 "2025-02-04T19:00:31Z")
Did the hex side of the screw strip or the thread side? I had the hex side on one of mine get messed up from a poorly fitting hex wrench. to work around it i had to use a dremel tool with a cutting disc to convert the stripped hex head into a thin slotted head that i could then gently remove with a flathead screwdriver.
You can see the slot in this photo.
Hope this helps!
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### Author:  [@mrkrag](https://forum.onefinitycnc.com/u/mrkrag)
#### Post date: [February 4, 2025, 11:54pm UTC](https://forum.onefinitycnc.com/t/z-axis-set-screws-are-stripped/30714/6 "2025-02-04T23:54:28Z")
Throwing my penny in the fountain with this.
Screw extractor to get the old one out, helicoil to re-thread.
Re-tapping is even better but if you cant do it, the helicoils require nothing special.
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### Author:  [@HardtailSr](https://forum.onefinitycnc.com/u/HardtailSr)
#### Post date: [February 5, 2025, 3:44pm UTC](https://forum.onefinitycnc.com/t/z-axis-set-screws-are-stripped/30714/7 "2025-02-05T15:44:02Z")
if a hex screw is stuck in hard enough that the hex breaks out or strips. I doubt that making a slot is going to result in it being stronger than a hex socket and the tiny flat head screwdriver needed is unlikely to have the strength or torque to do any better. Just saying it is possible but unlikely.
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### Author:  [@349iq2345](https://forum.onefinitycnc.com/u/349iq2345)
#### Post date: [February 5, 2025, 4:21pm UTC](https://forum.onefinitycnc.com/t/z-axis-set-screws-are-stripped/30714/8 "2025-02-05T16:21:48Z")
Hey Richard,
> [@ricknola](#):
>
> I attempted to install a new spindle on my elite and all the set screws strripped with one turn.
Usually this only happens when you don’t use a metric keys set. In the USA, the Onefinity should be sold with one. Like we buy a inch key set when we import a Harley-Davidson.
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### Author:  [@Ruairisdad](https://forum.onefinitycnc.com/u/Ruairisdad)
#### Post date: [February 16, 2025, 1:44pm UTC](https://forum.onefinitycnc.com/t/z-axis-set-screws-are-stripped/30714/9 "2025-02-16T13:44:59Z")
I’m guessing what stripped is the hex head itself. Those alloy steel machine screws tend to be bound pretty tight in the aluminum plate. IMO a quality, correct sized hex key that fully engages with the hex head is essential; in other words, do not use a ball-head hex wrench, and absolutely do not attempt to break them loose with a non-metric wrench. I use this set of of wrenches, which seems to work well, and makes it easy to put downward pressure on the screw head to keep the bit fully engaged.:
> **[Amazon.com: Neiko 10076A 3/8-Inch Drive Extra Long Allen Hex Bit Socket Set,...](https://www.amazon.com/Neiko-10076A-8-Inch-Metric-Socket/dp/B000IQNMQU?tag=benmyers-20)**
>
> Product Description Premium S2 steel bits provide optimal strength and durability to unfasten intractable screws and bit ends are sized for precise fitting. Sockets are made of enduring chrome-vanadium. Our Metric set includes: 7-Piece...
If the heads are completely stripped out it’s going to be complicated. The low-profile heads make it tricky to clamp on to the outside of the head with a Vise-Grip. Maybe wedging in a Torx bit might work. If they need to be drilled out, a set of left-hand drill bits come in handy and can often break them loose by themselves.
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### Author:  [@ricknola](https://forum.onefinitycnc.com/u/ricknola)
#### Post date: [February 23, 2025, 9:03pm UTC](https://forum.onefinitycnc.com/t/z-axis-set-screws-are-stripped/30714/11 "2025-02-23T21:03:34Z")
we got the issue resolved. thank you for the advice everyone!
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### Author:  [@HardtailSr](https://forum.onefinitycnc.com/u/HardtailSr)
#### Post date: [February 24, 2025, 12:51am UTC](https://forum.onefinitycnc.com/t/z-axis-set-screws-are-stripped/30714/12 "2025-02-24T00:51:47Z")
we all want to know how you got it resolved.
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### Author:  [@ricknola](https://forum.onefinitycnc.com/u/ricknola)
#### Post date: [February 24, 2025, 3:18am UTC](https://forum.onefinitycnc.com/t/z-axis-set-screws-are-stripped/30714/13 "2025-02-24T03:18:08Z")
I had a friend come over who has an elite forman also and he fixed it.
Said he emailed support and got the info he needed. and he installed the new spindle that I was trying to install.
We have had so many things go wrong with this machine its all become a blur.
sorry for the lack of info.
but we did check all the screws and connections today because of WC customs advice.
we have a few stripped hex bolts though so i think its just common
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### Author:  [@TommyObar](https://forum.onefinitycnc.com/u/TommyObar)
#### Post date: [February 24, 2025, 4:31pm UTC](https://forum.onefinitycnc.com/t/z-axis-set-screws-are-stripped/30714/14 "2025-02-24T16:31:12Z")
I had issues stripping bolts on other tools too, so finally bought a torque wrench.
[LEXIVON Bike Torque Wrench 1/4-Inch Dr. 15-Piece Kit | 72-Tooth Gear, Dual-Direction Click Type 2~26 Nm / 17.7~230.1 in-lb (LX-191) - Amazon.com](https://www.amazon.com/dp/B0BH57YJ8Z?tag=benmyers-20)