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What types of screws and anchors do sandwich cases use?
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Topic: What types of screws and anchors do sandwich cases use? (Read 2872 times)
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spacewolf
Thread Starter
Posts: 16
What types of screws and anchors do sandwich cases use?
«
on:
Tue, 28 November 2017, 15:56:05 »
Hey
I'm starting to design a sandwich case and I was gonna use M2 screws but I dont know if that's right. I also have no idea how to find anchors.
Anyone know what I'm talking about? And where to find them? (US)
Thanks
SW
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emenelopee
Posts: 398
*klomp klomp klomp* I step on your house 🦖
Re: What types of screws and anchors do sandwich cases use?
«
Reply #1 on:
Tue, 28 November 2017, 16:06:36 »
I use these in M2.5, though I only resorted to making a sandwich while I wait for my frame to arrive, and not really much of a sandwich as I'm just using two PCBs top and bottom, these as a spacer.
https://www.amazon.com/gp/product/B01MXSJXLO/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
Not exactly what you're asking for but M2.5 is a good size.
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AuthenticDanger
Posts: 402
Re: What types of screws and anchors do sandwich cases use?
«
Reply #2 on:
Tue, 28 November 2017, 16:11:49 »
You're looking for "threaded standoffs"
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spacewolf
Thread Starter
Posts: 16
Re: What types of screws and anchors do sandwich cases use?
«
Reply #3 on:
Tue, 28 November 2017, 16:29:29 »
Yeah. threaded standoffs seem like a decent option. I was just struggling to find one w/ a short enough male end.
I also just found these, which seem decent, but expensive. at least if i was gonna get them from here:
https://www.mcmaster.com/#94100a110/=1aggd0o
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spacewolf
Thread Starter
Posts: 16
Re: What types of screws and anchors do sandwich cases use?
«
Reply #4 on:
Tue, 28 November 2017, 18:49:25 »
I found a BUNCH of stuff to help me solve this problem. Answers below:
Low Profile flat HEX head screw:
https://www.mcmaster.com/#93070a073
Most expensive option
Pan Head Phillips screw:
https://www.mcmaster.com/#92005A128
Least expensive by a lot
Best anchor:
Press fit nut for plastic:
https://www.mcmaster.com/#94100A110
This will be really nice cause it'll sit nearly flush but still do the job.
Another option if I go w/ a slightly larger screw, is to use bumpers like these as feet:
https://www.mcmaster.com/#standard-bumpers/=1agi18v
or if I'm willing to thread the screw from the bottom and use the press fit nuts at the top:
https://www.mcmaster.com/#9540K12
so many options! thanks McMaster-Carr
«
Last Edit: Tue, 28 November 2017, 18:51:13 by spacewolf
»
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JohanAR
Posts: 71
Location: Sweden
Re: What types of screws and anchors do sandwich cases use?
«
Reply #5 on:
Wed, 29 November 2017, 05:17:50 »
I bought a box with several different lengths from banggood.com .It was cheap but long delivery time. If you know which length you need you can get them from
keeb.io
.
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What types of screws and anchors do sandwich cases use?