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#368925 - 13/06/2017 03:31 Faceplate standoff screws?
tfabris
carpal tunnel

Registered: 20/12/1999
Posts: 30784
Loc: Seattle, WA
Does anyone have the exact specification sizes for the Empeg faceplate standoff bolts? The four long hexagonal bolts which extend out from the display board PCB, into which the faceplate hex screws screw into.

I've stripped one and I want to order a bagful of them to keep on hand. I just need to know what the exact numbers are that I need to search for on the internet. I do not trust myself to be able to reverse engineer the exact specs by measuring the parts myself by hand.

This information might have been in the FAQ (I remember posting a picture of one of those snapped bolts to the FAQ once), but alas, 'tis down. I am sad that I do not have a backup file of any of the FAQ entries to confirm/deny if the specs are in there or not.
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Tony Fabris

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#368927 - 13/06/2017 04:16 Re: Faceplate standoff screws? [Re: tfabris]
tfabris
carpal tunnel

Registered: 20/12/1999
Posts: 30784
Loc: Seattle, WA
I forgot that I had a metrologist in the house.

He's measured the parts and has come up with these specifications:

M3 thread, both female and male, with 0.5mm pitch.
Hex bolt body length 10mm.
Male tip extension: 6mm.
Depth of female receptacle: 6mm.

That makes it these:
https://www.amazon.com/Uxcell-a14120500ux0242-Standoff-Spacer-Motherboard/dp/B00YM3T88G

Except those are brass. We don't know what the originals are made of, but Fishy says there's some kind of cheap pot metal, whatever is cheapest. I think brass would be fine for this application; I think if I went with Stainless it would be too strong; I'd rather strip one of these screws than strip the part that they screw into on the Empeg. So I'm going to order some and give them a shot.

And don't forget the split washers that go with them:
https://www.amazon.com/uxcell-500pcs-Stainless-Spring-Washer/dp/B018TG7DNS

For additional reference, the black faceplate bolts are M3 12mm long, but we didn't get specs for the allen wrench head size. That's probably standardized, so it's likely something like these:
https://www.amazon.com/Bolt-Base-Tensile-Socket-screws/dp/B00SN36C6M
_________________________
Tony Fabris

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