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View Full Version : Machinery Namplate rivets

Leafsprung
07-16-2008, 01:33 PM
Ok
Ive been curious about this for a little while. If you have a piece of equipment in your shop (lathe, bridgeport etc etc) You may have noticed that all the nameplates, instructional tags etc etc are held on by rivets. These rivets appear to be a solid steel round head rivet. The holes however, appear to be blind. Anyone know how these are done?
roverjohn
07-16-2008, 01:51 PM
They have a tapered shaft and are threaded at a very slow pitch. Maybe one turn in an inch. Basically a self tapping screw that you set with a hammer hence the round head. I used to see dead soft iron and brass and copper rivets but the depth of the hole had to be spot on and they didn't attach stuff to thin stock.
Leafsprung
07-16-2008, 01:59 PM
What are they called??
billybob_81067
07-16-2008, 02:05 PM
They have a tapered shaft and are threaded at a very slow pitch. Maybe one turn in an inch. Basically a self tapping screw that you set with a hammer hence the round head. I used to see dead soft iron and brass and copper rivets but the depth of the hole had to be spot on and they didn't attach stuff to thin stock.


That would actually be a very fast pitch... And I have no clue what they are called.
roverjohn
07-16-2008, 02:36 PM
Sorry. Slow twist not slow pitch.
roverjohn
07-16-2008, 02:52 PM
Forgot to mention that they make a version without the threads for people who want to be able to remove them fairly easily to change nameplates. Same tapered shaft though so it just sort of jams it's way in there when you smack it with a hammer.
MeanMike
07-16-2008, 03:03 PM
I'm not sure what they are called, but here is a picture of one. I've been changing nameplates on machines at work and have a few on my desk.

http://i112.photobucket.com/albums/n177/edwardsmt/dc131d13.jpg
rockmup
07-16-2008, 03:24 PM
There are lot's of different sizes but they are all much the same. Stand it in the hole and light taps with a hammer will get it started, then drive it home.
We use them everyday on valves
Leafsprung
07-16-2008, 05:37 PM
anyone have a name for them. Maybe "drive screw"

-Ike
300sniper
07-16-2008, 08:10 PM
anyone have a name for them. Maybe "drive screw"

-Ike

they are called drive screws. fastenal has them.
Azzy2000
07-16-2008, 09:45 PM
So, what is the best way to get them out without damaging the machine or nameplate?
300sniper
07-16-2008, 09:52 PM
So, what is the best way to get them out without damaging the machine or nameplate?




most of the ones i worked on were drilled all the way through and i was able to punch them out from the back. the ones that were truly blind, i grabbed with vice grips.
Pants
07-17-2008, 10:21 AM
Our inv system calls em Drive Rivets.

you can get them in all sorts of diff sizes. from .050 - .500 well, thats what I have here any way.
BumpyDodge
07-17-2008, 10:57 AM
X2 on calling them "Drive rivets". You can remove them by drilling & pulling/turning them out with a small LH spiral type extractor.
rockmup
07-17-2008, 11:07 AM
So, what is the best way to get them out without damaging the machine or nameplate?

I tap them with a hammer on the side and then grab them with vise grips
blazair
07-17-2008, 08:52 PM
Drive Screws
AN535
MS21318

Aircraft Spruce sells them.
Leafsprung
07-19-2008, 09:26 AM
drive rivets are different