We have used PEM standoffs, studs and nuts in pc boards, sheet metal, and copper bus bars for years. I can think of only one assembly house having any problem with the pc board mount type and that was because they didn't install them as recommended by PEM. As Lenny Carter said, if you use them as intended you should have no problems.
My regards,
Steve Smith
Project Engineer
Staco Energy Products Co.
"Your tailored power solutions provider"
Web Site: www.stacoenergy.com
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-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Lenny Carter
Sent: Friday, November 06, 2009 2:23 PM
To: [log in to unmask]
Subject: Re: [TN] PEM (rivets) in PCB
There are specific PEMS designed for pcb materials, in differing
thicknesses. See their website at www.pemnet.com. If you are having the
assembly made by a CM, you may want to discuss your requirement with them,
as they may have their own guidelines. I have used many PEMs over the
years, in FR4, aluminum enclosures, and other various composites. I have
always had surprisingly good results when they are used as intended and
installed correctly. You may have a significant component "keep out" for
tooling and pcb stresses, depending on your application. good luck. Lenny
ERG
----- Original Message -----
From: "henry rekers" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, November 06, 2009 1:54 PM
Subject: [TN] PEM (rivets) in PCB
Is anybody out there aware of any spec/inspection criteria/documentation on
how to specify/design/inspect Pem type fasteners?
We have a design that may require this, but I'm not willing to commit until
I have some more background info. Specifically, is this a normal process for
a board shop? Are there any 'gotcha's'?
Thanks.
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