Looking for an off the shelf source for steel keyhole "buttons"

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I'll try to describe the project.  I've been striking out even finding a pic - even though I know they exist.I have two items that will be mounted together (parallel) very closely.  It is for a very snug way to mount a flat screen computer monitor to furniture.  I am having a plate cut with a waterjet that will have keyholes and mounting holes (that I'll countersink).  The mate to this plate will have holes to mount the keyhole "buttons" and also mounting holes (again that I'll countersink).The reason for all this business is to get the two pieces close together when the keyholes are engaged.  The weight of the pieces will keep them together (no mechanical "interlock" needed).Ideally, the keyhole buttons would be 1/2 to 3/4" overall diameter, necking down once for the area it would engage with the mating plate (height of this = the mating plate thickness +/-) and necking down one more time, so I can plug weld the button from the back of the mating plate (again to roughly the height of the plate thickness).Have I confused everyone?  Anyway, I'd prefer to find a source that has these things sitting on a shelf so I can get them easily (and inexpensively).  I'll need to duplicate these items quite a bit and don't relish the idea of jobbing these out.TOOLandFAB.com See our Articles and Member Writeups and Tool Review Sections
Reply:how about 82 degree bolts.  You could even drill and tap the holes and precisely get the proper dimension before plug welding.
Reply:I hadn't even thought of using a bolt.  I was kind of hoping to avoid the extra step of tapping, but I would see the benefits of doing it that way.I was thinking more of a button head for the button.  Maybe a low profile socket head cap bolt would do the trick. Hmmm......got me thinking.....TOOLandFAB.com See our Articles and Member Writeups and Tool Review Sections
Reply:If you're referring to the type of fastener that's used in knock down storage rack systems, the "button" you're looking for is actually a rivet.    I believe they're refered to as "rack", "stand-off" or "shoulder" rivets.   Have you checked McMaster/Carr or MSC?There are no small projects
Reply:I had not looked at rivets - someone else just mentioned that to me also, although not the specific types.  Seems I've been searching the wrong terms.  If anyone has questions on buttons for sweaters and shirts, I'm now an expert.  TOOLandFAB.com See our Articles and Member Writeups and Tool Review Sections
Reply:Go to: http://www.mcmaster.com/                             Type in: Socket shoulder screwsThis will have a smaller round head, high strength, and you could tap or cut and weld at the threads. or, do other searches there under "shoulder" rivet, bolt, etc.Just my  opinion, not from a book, just from the road.Howes Welding Inc.www.howesweldinginc.com
Reply:you want a flat head allen screw in whatever thread you need..buttonhead screws are just that..they stick up like golf ball cut in half but way smaller..flat head screws are usually countersunk 82 degrees..i think...its been awhile.. ...zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:At woodworking supply stores, you can actually buy both parts already made- they are used to make bed frames, and other knockdown furniture.Like this-http://www.rockler.com/product.cfm?page=10Maybe you have a special waterjet deal, buy most of em I know of have minimums of 50 to a hundred bucks, making waterjet cutting custom parts like this quite expensive.
Reply:Originally Posted by RiesAt woodworking supply stores, you can actually buy both parts already made- they are used to make bed frames, and other knockdown furniture.Like this-http://www.rockler.com/product.cfm?page=10Maybe you have a special waterjet deal, buy most of em I know of have minimums of 50 to a hundred bucks, making waterjet cutting custom parts like this quite expensive.
Reply:Are you going to market these towards a specific application you already have in mind? What are the rough box dimensions? Just curious.
Reply:These are going to be for mounting flat panel computer monitors to furniture.  There are two common bolt patterns or mounting to the monitor (4 on 100mm and 4 on 75mm)  The buttons will be welded to the brackets that screw into the  monitor.  The receiving side of the bracket with keyhole sllots will be mounted to a piece of furniture, like a fold up desk lid or other flat surface.  Normally, these receiving brackets will be routed in flush in the panel, but I'll make up spacers that allow a surface mount application too.Here's the project that's driving this (all of the brackets I had found before were way too thick - couldn't get monitor close to the panel.http://www.toolandfab.com/forum/showthread.php?t=75TOOLandFAB.com See our Articles and Member Writeups and Tool Review Sections