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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

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Old Jul 20, 2017 | 04:01 AM
  #16  
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Originally Posted by reamer
Flareside bolts have a tapered "Phillips Head" on them, and are actually called screws and need special-tapered washers...





Are all the bolts the same size on a flare side bed (1981) and if so I see 5" long what thread size?
Dave - - - -
 
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Old Jul 20, 2017 | 06:46 AM
  #17  
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Hardy - Doing a translation, with what little German I know, schloss would be a large house, and maybe even a manor house or castle. And a schraube is a bolt. So, it would basically be a "house bolt". Right?

Over here that is a "carriage bolt". But the dimensions of the square shank on our carriage bolts is not right for the bed bolts. As Jim said, the openings in the bed that are square are too small to take the carriage bolt. But with some work they can be used, and if stainless is used you are set for a long time.

Anyway, that is interesting. Thanks for sharing.
 
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Old Jul 20, 2017 | 06:57 AM
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On Big Whitey, I noticed it has 6 bed bolts and the originals are no longer there. I will need to get under there to get into the tanks and would like to at least put SST carriage bolts instead of the grade 5 cap bolts. I'll look at the parts truck too, but that thing is rough as a cob; who knows though, it does have some gems here and there for nice parts the others don't.
 
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Old Jul 20, 2017 | 06:58 AM
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Hi Fuzzface
Yes all the "screws" are the same length..
pitch.... Ill check fer ya
 
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Old Jul 20, 2017 | 07:55 AM
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Catalog says: Screw-M12 x 1,75mm x 122.00mm oval hd. N801438—S40 for body bolt location #7. Somehow I feel a new web page coming on....


 
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Old Jul 20, 2017 | 08:18 AM
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Originally Posted by reamer
Hi Fuzzface
Yes all the "screws" are the same length..
pitch.... Ill check fer ya
Originally Posted by Gary Lewis
Catalog says: Screw-M12 x 1,75mm x 122.00mm oval hd. N801438—S40 for body bolt location #7. Somehow I feel a new web page coming on....


Thanks guys now I know what it should of had.
Being I want to use the style side bed floor if I can I might be able to use those bolts/screws?
Thanks again
Dave - - - -
 
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Old Jul 20, 2017 | 08:21 AM
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Dave - I'm confused. Which "those bolts/screws" are you talking about?
 
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Old Jul 20, 2017 | 08:32 AM
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Originally Posted by Gary Lewis
Dave - I'm confused. Which "those bolts/screws" are you talking about?
What ever the one are called for the flare side bed that reamer showed and you the size of.
I figured keep it all in 1 place and wanted to know the size to.

Be cause my truck had no floor or cross braces I plan to see if I can use the style side parts truck bed floor.
If I can swap AC firewall, bed floor should be cake!
Dave - - - -
 
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Old Jul 20, 2017 | 08:37 AM
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Ok. Let us know how it goes.
 
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Old Jul 20, 2017 | 08:40 AM
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Oh you know I will just been to hot here for me to do any work on the truck.
Dave - - - -
 
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Old Jul 20, 2017 | 01:59 PM
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don't think styleside and Flareside fasteners will be compatible (or cooperative) Flarside may be shorter.
 
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Old Jul 20, 2017 | 02:06 PM
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Originally Posted by fljab
On Big Whitey, I noticed it has 6 bed bolts and the originals are no longer there. I will need to get under there to get into the tanks and would like to at least put SST carriage bolts instead of the grade 5 cap bolts. I'll look at the parts truck too, but that thing is rough as a cob; who knows though, it does have some gems here and there for nice parts the others don't.
Regular carriage bolts you can buy don't work that well, when I used them I had to grind flats on them so I could put a adjustable wrench on them to hold them when I tightened them.

If you look at the picture of the original bolts at the beginning of this thread, you will see the head and the square shank are very large, but the hole in the frame is small. What they are doing is tightening the bolt down hard, till the square shank bottoms out on top of the frame. This keeps the thin u-channel of the bed from getting crushed. When you use regular bolts of any type with the wide beds, you have to tighten them down and use your judgment, if you tighten them too tight it will crush the bed channel.

What I use are 1/2" bolts with very large washers on top. I was using carriage bolts because of sliding loads in the bed, but regular bolts are so much easier and really don't seem to catch loads that often when sliding something in the bed.
 
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Old Jul 20, 2017 | 02:13 PM
  #28  
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Originally Posted by reamer
don't think styleside and Flareside fasteners will be compatible (or cooperative) Flarside may be shorter.
Amen!

Guys, I've made some changes to my web site, but many more are needed in order to make the Body Mount page reasonably usable. And I'm finding this to be a very confusing/complex issue that I'd like to get sorted and documented once and for all.

So, I started a new thread where I asked for some help: https://www.ford-trucks.com/forums/1...ts-mounts.html. If you could check it out and contribute I'd really appreciate it.
 
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Old Jul 20, 2017 | 03:46 PM
  #29  
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Originally Posted by Franklin2
What I use are 1/2" bolts with very large washers on top. I was using carriage bolts because of sliding loads in the bed, but regular bolts are so much easier and really don't seem to catch loads that often when sliding something in the bed.
That's what are in there now, so I guess they need to stay if I don't want to spring for the OEM bolts. What do modern Ford trucks use?
 
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Old Jul 20, 2017 | 04:00 PM
  #30  
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Originally Posted by reamer
don't think styleside and Flareside fasteners will be compatible (or cooperative) Flarside may be shorter.
If to me, I know but I want to try and use a LB style side floor and bolt on flare side side panels to it.
But that is a bit down the road.
Dave - - - -
 
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