Rivets for Seat Risor?

[A-Man]

I need to replace the seat risor in my 1930 CCPU. The old seat risor is secured in place with machine screws & nuts. Is this correct? I would assume since the floor plan is secured by rivets, that the seat risor should also be riveted in place. In checking rivets available, I am not able to locate rivets specific for this purpose. If the seat risor is to be riveted, what is the size of rivets needed?

 

[rogeroadster]

I need to replace the seat risor in my 1930 CCPU. The old seat risor is secured in place with machine screws & nuts. Is this correct? I would assume since the floor plan is secured by rivets, that the seat risor should also be riveted in place. In checking rivets available, I am not able to locate rivets specific for this purpose. If the seat risor is to be riveted, what is the size of rivets needed?

Right off hand, I bet Brookville would sell you the correct rivets or you could try:

http://www.fordscript.com/ford_bolts/catalogs/modelA.pdf

I've been replacing a lot of rivets in my 26 t roadster and I've found steel rivets at a local industrial hardware store that has those yellow bins that stock a few of every odd part you could ever want. They seem to have round head and truss wagon rivets. The truss wagon head are close to an aircraft brazer head rivet (AN -455) which don't seem to be available in steel. I had to modify a brazer head rivet set to shoot them but they are a dead ringer for the original. These rivets cost about 17 cents each.

 

[pat in Santa Cruz]

My unrestored 30 pickup cab has the seat riser installed with rivets. The tops (inside the cab) are domed. The underside is waffled. They look like the floor pan rivets. There are no open holes, so I cannot determine the shank diameter.

 

[wrndln]

I believe Ford used what are called brazierhead solid rivets, usually 3/16" in diameter. Brazierhead rivets have a rounded crown, but not a much as roundhead rivets like frame type rivets. The length of rivet depends on the number of metals riveted together. If it is 2 panels, 1/4" to 3/8" is used. Three or four pieces, 3/8" to 1/2". You need to remember it takes at least the thickness of the rivet protruding though the metal panels to be riveted to get a good waffle finish on it. The rivets do expand in the holes so enough rivet length is important. Big Flats Rivet Co. - www.bigflatsrivet.com has the rivets you need and some helpful tips.

BTW - It is helpful to install the panel to be riveted in place with machine screws and remove one screw at a time to install the rivets.
Rusty Nelson

 

[BRENT in 10-uh-C]

Rusty has it. Antique Auto Sheetmetal (the proper name for Brookville) does not sell the rivets, --nor do they even use them on the seat risers when they fabricate them. We generally just drill out the spot welds and use rivets instead to mimic the correct look.



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[Steve Staysko]

Call Roy Nacewicz @ 734-654-9450 www.fordscript.com I've bought all my rivets from Roy and there bang on!