this post was submitted on 10 Jul 2023
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APC server rack with threaded holes instead of cage nuts (lemmy.world)
submitted 1 year ago by snekerpimp@lemmy.world to c/selfhosted@lemmy.world
8 comments fedilink hide all child comments
 

Just picked up an APC 48u server rack. There were no pictures of it in the post and I did not notice until I got it home and set up, that the rack rails have threaded holes instead of square cage nut holes. I can’t seem to determine the thread size and pitch, and have a thread gauge coming. Until then, does anyone know anything about this? The people I grabbed it from had used self tapping machine screws and drove them in with an impact wrench. Is this what APC had intended, or is there some $300 proprietary screw I have to buy from them?

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[–] gripworks@lemmy.world 0 points 1 year ago (1 children)

While I can't speak for your rack in particular, most pre threaded racks are either 10-32 or 10-24 screws.

You can buy them easily on Amazon.

I work in television, and in our equipment room we have 50 racks that are pre threaded. And we use these: [Amazon link](Penn Elcom S1032/HP/WA/100 High Point Rack Screws with Washers - Set of 100 https://a.co/d/g13kPzw)

[–] snekerpimp@lemmy.world 0 points 1 year ago (1 children)

This is what I thought too, but both #10 threaded bolts I have are too small, one will thread, the 24 ones I believe, but you can wiggle them, enough to wiggle them out with out turning them.

[–] EmoPolarbear@lemmy.emopolarbear.com 0 points 1 year ago (1 children)

They're 12-24, we use these at work.

[–] snekerpimp@lemmy.world 0 points 1 year ago (1 children)

#12-24 are way to big, can’t even get them to catch the first thread.

[–] jake_jake_jake_@lemmy.world 0 points 1 year ago (1 children)

12-24 from a telco guy, buy a 12-24 tap to help take the paint off

[–] snekerpimp@lemmy.world 1 points 1 year ago

Heading to the depot as we speak. Thank you

[–] scrubbles@poptalk.scrubbles.tech 0 points 1 year ago

I learned this the hard way, there is a difference between a "data rack", which is the one with cage screws, and a "network rack", which comes with the threaded machine screws. I believe switches have standardized screws

[–] Saik0Shinigami@lemmy.saik0.com -1 points 1 year ago

No idea on the screw question... but the labels are off by one screw spacing. The holes that are "close" are where the U labels should change.