Strut pinch bolt size/thread?

[1995mtxsho]

I need to know what size/thread pitch of a bolt and nut to use for the front and rear pinch bolts. I have read fronts are 3/4" and rears are 1/2" but I want this confirmed.
I also need the lengths of the bolts.
Thanks

 

[RStalveyARFF]

Wherever you read that is wrong. The bolts are metric, although I'm not positive on the sizing. A 3/4" bolt would be huge! Also, are you talking about the bolts for the knuckle to strut or knuckle to control arm?

 

[Racer X]

There is no nut, only a bolt. The spindles are threaded to accept the bolt.

The front is an M14x1.50, the rear is an M12x1.75, if I recall. 50 or 60mm for the length. Make sure you use partial threaded bolts.

 

[1995mtxsho]

Also, are you talking about the bolts for the knuckle to strut or knuckle to control arm?

I am talking about the knuckle to strut pinch bolt. I specified that in the title of my first post.

 

[1995mtxsho]

There is no nut, only a bolt. The spindles are threaded to accept the bolt.

The front is an M14x1.50, the rear is an M12x1.75, if I recall. 50 or 60mm for the length. Make sure you use partial threaded bolts.

There is a nut and bolt, as I have drilled out the threads for the rears, and used a nut, I just cant remember what size american bolt I used in the rears, and I plan to do the same with the fronts (drill out the threads). I know the stock bolts do not require nuts, and are metric, ****, the whole car is metric.

I live and drive in the rust belt, and I will not rely on faith when it comes to getting the pinch bolts out again in the event that I may need to remove the bolts again, so I am/have replaced them with nuts/bolts to make it easier to remove if seized... a die grinder, cut off the nut and done.

I am replacing my struts front and rear. and would like to replace the rear bolts I already have in there, and modify the fronts the same way when I do it... thing is, is that I will be replacing them when all stores are closed, so I have to buy in advance.

The front bolt size is most important, as I already have bolts/nuts in the rear that I can reuse if I cant get it figured out, but havent touched the fronts yet so I havent a clue what I will need for a size.

 

[thinkingstrings]

Rear pinch bolt is 12x1.75 MM thread. Front I dont know.

 

[RStalveyARFF]

Trust me, I know all about the rust belt. Even with all the salt they lay down here, a quick dab of anti-seize on the bolts will insure easy removal in the future. I'd strongly suggest obtaining ford replacement bolts for the front due to the grade of bolt, etc. After all, these are holding your struts to the rest of the car essentially. Besides, heat and PB Blaster solves all rust belt problems.

 

[Racer X]

You don't need to use a Ford bolt.

I get my replacement bolts from Metric and Multistandard Components Corp in Hawthorne, NY. Grade 10.9 M14x1.50 bolts cost me like $1 or $2 each (I forget what I get charged). And I just removed the front pinch bolts from a very rusty 1989 SHO for a 96 upgrade, and a little heat went a long way in getting that bolt out in one piece.

 

[quikSHOilver]

Monroe pinch bolt

Go to advance auto or any other auto parts ask for part number AK50 for rear, AK52 for front as it is monroe lower mount hardware kit. I snapped my pinch bolt recently, had to have machine shop drill and extract it out for $15 dollar. Hope that helps.

 

[Paul]

Anti-seize may insure that the threads will break loose. Its still not a guarantee. Most these wrecks don't get unbolted til' well over 100000. That may work in Caif. or south of N. Carolina but not in Penn. or Minn. As the shock changers do...blast them in with a pnuematic impact beyond the laws of phyiscs...The bolt can or will break at the WORST possible moment not only failing the bolt but the knuckle as well. The catastropic failure will be spontanious. Don't go off the track. The nut & bolt drill-out would be fine, worthy of a degree of trust done properly. Front & rear are the same. The sad part is it may hold up til' go off track at 90mph. Drilled out to 1/2 in. dia. grade 8 nut & bolt will work. OLD RUSTY BOLTS GET RD OF EM!

 

[RStalveyARFF]

In Massachusetts, anti-seize, heat, and PB Blaster is all you need. If it works here, it'll work anywhere.

 

[SHO92]

Paul's post isn't very intelligible... he is incorrect though, and it has been stated before, the front and rear bolts are definitely different sizes.

 

[etc1006]

Heat is definetly your friend. I didn't have to even get out the oxygen to go with mine. Just used the turbo torch (air/acetylene) and it worked fine. Some folks have used MAPP gass. Gets hotter than propane.

 

[BaySHO Performance]

Per Racer X, the bolts are M12 and M14. 12mm is 0.472" or 15/32". 1/2" should work, although a little loose. 14mm is 0.5512" or 9/16"

 

[Irish Pride]

Per Racer X, the bolts are M12 and M14. 12mm is 0.472" or 15/32". 1/2" should work, although a little loose. 14mm is 0.5512" or 9/16"

19 years late but OK....

-Chad