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Seat bracket bolts? screws?

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Old Dec 16, 2008 | 03:28 PM
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Seat bracket bolts? screws?

This might be a longshot but does anybody know where i can buy new bolts for attaching the seat bracket to the floor? My seat is not bolted in and I don't have them..

I checked the online parts catalogs (lmc, dennis carpenter, bronco graveyard) and none has these bolts listed

Are the seats attached with a large head screw or nuts and bolts? I tried a regular 5/8 bolt from the hardware store and the bracket hole is larger than the bolt head and it didn't quite feel like the threads were a perfect match

This is on a 75 f150
 
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Old Dec 16, 2008 | 03:45 PM
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Originally Posted by jrt103
This might be a longshot but does anybody know where i can buy new bolts for attaching the seat bracket to the floor? My seat is not bolted in and I don't have them..

I checked the online parts catalogs (lmc, dennis carpenter, bronco graveyard) and none has these bolts listed

Are the seats attached with a large head screw or nuts and bolts? I tried a regular 5/8 bolt from the hardware store and the bracket hole is larger than the bolt head and it didn't quite feel like the threads were a perfect match

This is on a 75 f150
The floor pan has "blind" nuts welded in for the seat track bolts.

8) 381649S2 .. Bolt & Washer-Seat Track to Floor / National Course Thread / Grade 5 / 3/8" -16 x 1" / Hex head / Obsolete

Obsolete parts vendor Green Sales Co. in Cincinnati OH has 60 = 800-543-4959
 
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Old Dec 16, 2008 | 04:09 PM
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shoot, i just went to a fastener place near me and got new bolts. worked fine. i think i used washers underneath the bolt head too.
 
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Old Dec 16, 2008 | 04:10 PM
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Thanks so much! Will certainly give them a call tomorrow!

 
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Old Dec 16, 2008 | 04:12 PM
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Originally Posted by highboy1975
shoot, i just went to a fastener place near me and got new bolts. worked fine. i think i used washers underneath the bolt head too.
yeah i probably would if i knew the exact size i needed... the one i tried just didnt feel right (just a bit loose)
 
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Old Dec 16, 2008 | 04:18 PM
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From: Gadsden Purchase
Originally Posted by NumberDummy
The floor pan has "blind" nuts welded in for the seat track bolts.

Bolt & Washer-Seat Track to Floor / National Course Thread / Grade 5 / 3/8" -16 x 1" / Hex head / Obsolete

Obsolete parts vendor Green Sales Co. in Cincinnati OH has 60 = 800-543-4959
I changed mine out to zinc-chromate plated grade 5 bolts from the hardware
store. I increased the length because I put ~3/8" thick "wood based micarta"**
blocks under the seat rails.

http://www.panix.com/~alvinj/file12/seatnut.jpg

I added a forth bolt to each side while I was at it too but wanted it to act
like the blind-nuts Bill mentions that Ford put in. Quick and took a picture,
that's just a cut off 3/8" "U" nut is all, but it works like a champ.

It's been a long time since I was able to take pictures and put them on my
website. So expect more waste-of-time pictures from me, guys. :)

Still not able to "scan off" little stuff so you're spared that crap for now. ;)

Alvin in AZ
ps- ** Pakkawood/Dymondwood they keep changing the dangged name and
so I gave up and switched to it's description years ago "wood based micarta"
pps- the extra silvery color of the bolts' ends is from anti-seize BTW ;)
 
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Old Dec 16, 2008 | 04:27 PM
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From: Gadsden Purchase
Originally Posted by highboy1975
shoot, i just went to a fastener place near me and got new bolts.
worked fine. i think i used washers underneath the bolt head too.
Same here and I hate(!) washers especially the split ring lock washers...
But I too put washers under the bolt heads on the seat rails.
Sometimes using washers does make sense? :/

Alvin in AZ
 
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Old Dec 16, 2008 | 04:32 PM
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381649S2, the Ford bolts (that's a Ford "hardware" part number, btw) have the washers included with the bolts, as that's how they were made.
 
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Old Dec 16, 2008 | 04:33 PM
  #9  
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Alvin in AZ
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From: Gadsden Purchase
Originally Posted by jrt103
yeah i probably would if i knew the exact size i needed...
the one i tried just didnt feel right (just a bit loose)
We can't tell you what size to use from here, we can't see that far let alone,
reach that far. ;)

Who the heck knows what's been shoved into those holes! ;)

This is where having a collection of old junky bolts to mess with (even if you
only have one of each size) at least can tell you what size to buy. Somebody
might have crammed a metric bolt/s into those hole/s you got or they might
be all rusted out and in need of a tapping to the next larger size even. :/

Alvin in AZ
 
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Old Feb 12, 2025 | 12:53 AM
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Sorry, posted in wrong forum. Please delete
 

Last edited by Green72F250; Feb 12, 2025 at 12:57 AM. Reason: correct information
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