ConcoursMustang Forums

1st Generation 1964 1/2 - 1973 - Questions & general discussions that apply to a specific year => 1968 Mustang => Topic started by: Oz390 on March 24, 2013, 04:10:37 AM

Title: Another convertibe fastener question, tack strip to body
Post by: Oz390 on March 24, 2013, 04:10:37 AM

67-68 FAM's call out a forming machine screw w/lead point.  1 1/2" and 2" 1/4-20.  Most of the ones I have seen are a pointed end self tapper, w 7/16" hex head and captive washer.

Running change, FAM is incorrect, or somewhere along the line a lot of PO's got a hold of the same pointy ended screws...???

Title: Re: Another convertibe fastener question, tack strip to body
Post by: Oz390 on March 25, 2013, 07:35:15 AM

No one has restored a convertible?  :o

 ;)

Title: Re: Another convertibe fastener question, tack strip to body
Post by: TLea on March 25, 2013, 08:32:15 AM

Quote from: Oz390 on March 25, 2013, 07:35:15 AM

No one has restored a convertible?  :o

 ;)

More than I care to remember.
zinc dichromate, 2 lengths (never measured) SEMS head self tapping machine hex. I dont have one in front of me

Title: Re: Another convertibe fastener question, tack strip to body
Post by: Oz390 on March 27, 2013, 02:24:59 AM

Similar to these?   7/16" head.  1 1/2" and 2" long.  (two sizes shown as a top owner sent this to me asking which was correct, I have seen mostly ones like on the left, but don't have a large sample)

(http://i64.photobucket.com/albums/h180/dalorzof/Convertible%20top%20pics/TopInstall3022.jpg)

Title: Re: Another convertibe fastener question, tack strip to body
Post by: TLea on March 27, 2013, 08:44:03 AM

Those look like ones put in because originals were stripped (common) Originals are machine thread. I'll see if I can find a couple and post

Title: Re: Another convertibe fastener question, tack strip to body
Post by: Oz390 on March 27, 2013, 08:57:19 AM

Ok that clears it up.  I have some AMK that are machine screws and similar to the spec from the FAM and Guide to Ford fasteners...

Thanks! 

Title: Re: Another convertibe fastener question, tack strip to body
Post by: bryancobb on March 27, 2013, 04:49:29 PM

Mine were machine threads and looked great so I had them replated.  The holes in the gutter where they screwed-in were stripped so I installed aluminum Rivnuts with the correct threads and they will never be seen.

Title: Re: Another convertibe fastener question, tack strip to body
Post by: TLea on March 27, 2013, 06:48:19 PM

(http://i25.photobucket.com/albums/c74/tlea/20130327_113537.jpg)

(http://i25.photobucket.com/albums/c74/tlea/20130327_113530.jpg)

Title: Re: Another convertibe fastener question, tack strip to body
Post by: jwc66k on March 27, 2013, 07:07:42 PM

What size?
Jim

Title: Re: Another convertibe fastener question, tack strip to body
Post by: Oz390 on March 28, 2013, 12:09:58 AM

Based on '68 Body FAM reference, Guide to Ford Fasteners notes:

377344  Hex head Conical SEMS, 1/4-20, 3/4"OD, 1 1/2"L
380462  Hex head Conical SEMS, 1/4-20, 3/4"OD, 2"L

Believe both are 7/16" hex head.

Title: Re: Another convertibe fastener question, tack strip to body
Post by: TLea on March 28, 2013, 12:34:07 AM

Quote from: Oz390 on March 28, 2013, 12:09:58 AM

Based on '68 Body FAM reference, Guide to Ford Fasteners notes:

377344  Hex head Conical SEMS, 1/4-20, 3/4"OD, 1 1/2"L
380462  Hex head Conical SEMS, 1/4-20, 3/4"OD, 2"L

Believe both are 7/16" hex head.

exactly

Title: Re: Another convertibe fastener question, tack strip to body
Post by: jwc66k on March 28, 2013, 12:39:03 AM

AMK carries 377344-S36 and references 380462-S36 as "similar" (actually says their item for 377344-S36 is similar too). They are used on 64-73 Mustang convertibles so replacements could be a found in a junkyard. If the top was replaced, or repaired, there's no telling what was used.
Jim

Title: Re: Another convertibe fastener question, tack strip to body
Post by: Oz390 on March 28, 2013, 04:30:57 AM

Looks like they only have the 1 1/2" so for the 2" its "similar", just shorter...

Title: Re: Another convertibe fastener question, tack strip to body
Post by: bryancobb on March 28, 2013, 07:45:24 AM

Those are the exact ones mine had.  There was two lengths.  A couple of mine were short that were suppose to be long but I'm sure that was done on the assembly-line, so I put the same ones back.

I ordered the kit from AMK to replace the incorrect lengths but did not use them because they were accurate enough to suit my desires.
They were pretty nice and a fair copy but I just didn't like them.

Here's the rivnuts.  I know, I know...I'm a stickler in one respect and put something totally un original.  We all are guilty I would like to think.??

(http://forum.ih8mud.com/attachment.php?attachmentid=555229&stc=1&d=1315804147)
(http://www.homeprofasteners.com/image/cache/FRACTIONAL%20KIT-500x500.jpg)