# Router bolt pattern Z slider bolt size? **URL:** \ **Category:** Apprentice Series (Gen 2)\ **Created:** [March 12, 2026, 5:51am UTC](https://forum.onefinitycnc.com/t/router-bolt-pattern-z-slider-bolt-size/37848 "2026-03-12T05:51:06Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![cjthom12](https://avatars.discourse-cdn.com/v4/letter/c/53a042/32.png) [@cjthom12](https://forum.onefinitycnc.com/u/cjthom12)\ **Post date:** [March 12, 2026, 5:51am UTC](https://forum.onefinitycnc.com/t/router-bolt-pattern-z-slider-bolt-size/37848/1 "2026-03-12T05:51:06Z")
Hello, I just received my Apprentice yesterday and I’ve been super excited to get started. This thing is a LOT beefier than i expected and seems like good value for someone like me who just wants to try this out. The only thing holding me up at this point is that there are no bolts for installing the router. Whats the bolt pattern on the router/spindle mount? This way i can grab some bolts on the way home from work tomorrow. I’m sure it’s it’s an m4 or m3 of some sort. ---
**Author:** ![JimmyBuckets](https://avatars.discourse-cdn.com/v4/letter/j/6f9a4e/32.png) [@JimmyBuckets](https://forum.onefinitycnc.com/u/JimmyBuckets)\ **Post date:** [March 12, 2026, 11:21am UTC](https://forum.onefinitycnc.com/t/router-bolt-pattern-z-slider-bolt-size/37848/2 "2026-03-12T11:21:29Z")
I would call or email support. ---
**Author:** ![TMToronto](https://avatars.discourse-cdn.com/v4/letter/t/7ea924/32.png) [@TMToronto](https://forum.onefinitycnc.com/u/TMToronto)\ **Post date:** [March 12, 2026, 11:53am UTC](https://forum.onefinitycnc.com/t/router-bolt-pattern-z-slider-bolt-size/37848/3 "2026-03-12T11:53:56Z")
I believe they are M5x22 ---
**Author:** ![OnefinityCNC](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/onefinitycnc/32/7_2.png) [@OnefinityCNC](https://forum.onefinitycnc.com/u/OnefinityCNC)\ **Post date:** [March 12, 2026, 1:30pm UTC](https://forum.onefinitycnc.com/t/router-bolt-pattern-z-slider-bolt-size/37848/4 "2026-03-12T13:30:28Z")
Hi Craig, Just want to clarify, the picture below, the bolts circle in green are what squeeze the z slider mount together to hold the spindle/router. The 4 holes on the front are for attaching add ons like the jtech laser. Did your machine arrive with the two bolts circled in green missing? If so, send an email to [support@onefinitycnc.com](mailto:support@onefinitycnc.com) and they’ll get those out asap! ![a89c7e64efa3158f2461592588d82b98fca85f79](https://us1.discourse-cdn.com/flex022/uploads/onefinitycnc/original/3X/9/6/964dc6ff4582dffc25f89a258dee7f8e2c32c8ca.jpeg) ---
**Author:** ![cjthom12](https://avatars.discourse-cdn.com/v4/letter/c/53a042/32.png) [@cjthom12](https://forum.onefinitycnc.com/u/cjthom12)\ **Post date:** [March 12, 2026, 2:47pm UTC](https://forum.onefinitycnc.com/t/router-bolt-pattern-z-slider-bolt-size/37848/5 "2026-03-12T14:47:44Z")
Yes the bolt circled in green are missing. Thank you for your response! ---
**Author:** ![OnefinityCNC](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/onefinitycnc/32/7_2.png) [@OnefinityCNC](https://forum.onefinitycnc.com/u/OnefinityCNC)\ **Post date:** [March 12, 2026, 2:58pm UTC](https://forum.onefinitycnc.com/t/router-bolt-pattern-z-slider-bolt-size/37848/6 "2026-03-12T14:58:08Z")
The screws are M5x36 socket head screws. If you can’t fina any locally just send an email to support and we’ll get you squared away! ---
**Author:** ![taliaferrohtaylor](https://avatars.discourse-cdn.com/v4/letter/t/df788c/32.png) [@taliaferrohtaylor](https://forum.onefinitycnc.com/u/taliaferrohtaylor)\ **Post date:** [March 14, 2026, 8:24pm UTC](https://forum.onefinitycnc.com/t/router-bolt-pattern-z-slider-bolt-size/37848/7 "2026-03-14T20:24:27Z")
My bolts for the router also fell out during shipping. Fortunately they were in the box