2
$\begingroup$

I hope these exist and someone can tell me what they're called. What I'm looking for is screws to mount a PCB where the top of the screw is normal, then there's a smooth length, then a nut with a spring held in between the top of the screw to the bottom of the bolt so that, for example, if you were to press on the PCB a bit it would move a bit vertically. I'm terrible at drawing things, so I'll try with text:

=====   <Top of screw
 |\|    <Spring on smooth part of screw/bolt
 |\|    <Spring on smooth part of screw/bolt
 |\|    <Spring on smooth part of screw/bolt
 ===    <Return to normal threading
 [=]    <Nut

Anyone know?

$\endgroup$
1

2 Answers 2

0
$\begingroup$

A captive panel screw appears to be what you're talking about.

Panel screw

$\endgroup$
2
  • $\begingroup$ That looks like it exactly. Thanks! $\endgroup$ Commented Jul 15, 2021 at 10:53
  • $\begingroup$ But it isn't. A spring top standoff is a permanent mounted PCB standoff that can be quickly removed and reinstalled without loosing any of the parts. It is a totally rigid standoff when installed. $\endgroup$
    – Phil Sweet
    Commented Jul 15, 2021 at 20:29
0
$\begingroup$

It think you are looking for a spring-loaded heat sink attachment screw. These provide soft compression of a heatsink to a PCB. But you want the spring on the otherside so the mounted board can be pressed down. As far as I know, you can do that. But I'd ask the vendor to confirm it.

enter image description here

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.