64 Rocker Panel lower screws?

[Alan D.]

Checked past posts and did not find a definitive answer on this. The 14 SEMS screws which hold the rocker panel on are pn 3830604. What finish is called out? (If it listed someplace)

JG calls for cad, however mine looked like black phos and have been left that way (so deduct). Would like to know what they really SB.

[Paul J.]

Re: 64 Rocker Panel lower screws?

Alan:

I thought that mine were black phos, so I just dug them out of the box and looked at them more carefully. They appear to have been cad.

Paul

[Dan H.]

Re: 64 Rocker Panel lower screws?

Alan:

I thought that mine were black phos, so I just dug them out of the box and looked at them more carefully. They appear to have been cad.

Paul

Paul, my old ones looked like some silver faded under the washer. Also, look at Noland's book at the 64's underside on the rack. Sure don't look black.
Dan

[Paul J.]

Re: 64 Rocker Panel lower screws?

Paul, my old ones looked like some silver faded under the washer. Also, look at Noland's book at the 64's underside on the rack. Sure don't look black.
Dan

I guess you're talking about the photo on page 241. I agree.

[Alan D.]

Re: 64 Rocker Panel lower screws?

AH, good idea about the picture! Just pulled up the Motor Trend (Sept 64) and sure enough cad screws. Will clean (little rusty still) and plate. Thanks!!

[Alan D.]

Re: 64 Rocker Panel lower screws?

Yet another chapter to silver v black.
Did the following to my original screws;
clean in Acetone, then paint remover, then in CLR (cold & hot), finished in Ridrust, then wire brushed all. (Used brush since the ridrust tends to leave a black film on item if left for a long period.)
Also Note; that Ted Smathers (40119) has also reported finding these screws as black!

So here is the picture of how they look after cleaning, seems to me they were black. It may be that some were black however most were silver.

Now comes the fun part - which to use? Do not want to destroy my SEMS head by zinc plating them. Have found the washers in zinc (McMaster-Carr 91090A102) but where can one find the SEMS heads???

Oh yes, the decision to comply to the JG maybe the cowards way out but is not a big enough fight. Besides I just can not find the assembly line worker who put those screws on.

[Dan H.]

Re: 64 Rocker Panel lower screws?

Alan I kept my rocker screws from my old 64 sn 8477, they were half sems, half no logo head markings, coating was a very dark grey, maybe zinc at one time? All kinds of posibilities. I believe LICS has sems marking but the screws are black!
Dan

[Garry E.]

Re: 64 Rocker Panel lower screws?

Alan:

LIC has the correct screws w/ the proper SEMS head markings, but they are black...... I'm not sure if re-plating them will destroy the head marks...

Garry Eastwood
#38705

[Alan D.]

Re: 64 Rocker Panel lower screws?

Well checked around for screws with SEMS markings however only in black as expected. The vendors insist they should be black! In fact one vendor claims to have print of pn 3830604 calling for black (same vendor had zinc listed at one time but now only the black)
Short of see the print for the 3830604 at some point will try to plate the black ones back to silver. Suspect the black v zinc may have been a function of who made the part.

Anyone have print they can post of send???

[John D.]

Re: 64 Rocker Panel lower screws?

Alan, Those sems screws are a royal pain aren't they.
Story: On my 63, the LWC I have all original Sems screws. I think they have a circle around the logo but I forget. Anyhow I have had them cad. Then our pals said black, then I got hit at Marlborough. So now they are zincad.
This ongoing discussion whether a piece of hardware should be black phosphate or zinc or cad is probably never going to end.
If we think the assembly line continuously plated a washer or bolt one finish then we are incorrect.
For example: I have a sheet given to me 30 plus years ago from Rochester Products on fuel injections hardware so I could assemble screw kits.
Split lock washer: Could be bare, blackened, or zinc or cad. They didn't care. We do though.