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thump16 04-19-2017 09:13 PM

Door hinge bolts
 
1 Attachment(s)
I bought new doors for my 56 and the threads are not fine 3/8-24 like the originals. They are coarse thread. Has anyone else had this problem?

mongocanfly 04-19-2017 09:30 PM

Re: Door hinge bolts
 
Are those bolts the ones that go thru the hinge into the door? Or the ones that hold the hinge to the pillar? If they go into the door and the female threads in the door are coarse it shouldn't be a problem..

thump16 04-19-2017 09:34 PM

Re: Door hinge bolts
 
They are hinge to door. I thought they were all fine thread

62lwbc10 04-19-2017 09:41 PM

Re: Door hinge bolts
 
Doesn't look right to me. Mine are fine thread.

mongocanfly 04-19-2017 10:28 PM

Re: Door hinge bolts
 
Check threads in the door..if they're coarse thread then there's no problem..if the holes are fine thread your gonna need new bolts

ndeep 04-19-2017 10:40 PM

Re: Door hinge bolts
 
my new doors were coarse thread also, just replace bolts

thump16 04-19-2017 10:55 PM

Re: Door hinge bolts
 
1 Attachment(s)
What bolts did you use?

dsraven 04-20-2017 09:36 AM

Re: Door hinge bolts
 
if the doors have course threads then you need course thread bolts. just go to the bodyshop supply or your local parts store and grab some with the flanged head so they look the same except for the threaded part. bingo bango and bob's your uncle. waaaaay too much work to make them fine thread in the doors. I ran into this on the hinge pillars (for the other end of the hinge) that came from china with course threads. just buy new bolts and be done. put a little lube on them when you install.

MARTINSR 04-20-2017 09:49 AM

Re: Door hinge bolts
 
It's not "way too much work" to make them fine thread, it's minutes, just run a fine tap through the holes, whamo, done.

HOWEVER

I don't think that would be a good thing to do. If it were a stereo mount, heck yeah, not a big deal. But a door, oh no, you do NOT want to do that as it will weaken the mounting point. The threads will never be the same.

Just change the bolts and get on with life.

To change them correctly to fine WOULD be way way, WAY too much work and it's not worth it by any means. Most every door I have ever pulled up to right now on 2017 cars the bolts are course thread. Why they did those fine back then, I don't know, but it most certainly doesn't need to be fine thread.

Just change the bolts and get on with life.

Brian:metal:

dsraven 04-20-2017 10:44 AM

Re: Door hinge bolts
 
ya, I agree with you there Brian, not too much work to just get fine threads but if you want fine threads that will hold a door it is a bigger job for sure. it is sort of like stripping a nut and then chasing thre threads and using it anyway. it would probably work but it would fail under a load. there would be too many threads cut in the hole to make it reliable after.
just use course thread bolts and carry on. flange head bolts are fairly cheap anyway. some have serrated flanges as well to hold tight better.

thump16 04-20-2017 11:22 AM

Re: Door hinge bolts
 
I already ordered coarse thread bolts from local Fastenal store. Problem solved.

MARTINSR 04-20-2017 11:38 AM

Re: Door hinge bolts
 
Quote:

Originally Posted by thump16 (Post 7920902)
I already ordered coarse thread bolts from local Fastenal store. Problem solved.

Right on!:metal:


Brian

_Ogre 04-20-2017 07:33 PM

Re: Door hinge bolts
 
orrieg??? calling orrieg :D
i believe 55-7 had fine and 58-9 had course or vice versa

mongocanfly 04-20-2017 08:42 PM

Re: Door hinge bolts
 
Martin sr..you had me scared with your advice for a second there...then I got to the "however" part..wheeeew..running a fine thread tap thru a coarse thread hole..real risk of breaking a tap in there..
A fine thread 3/8-24 drill hole size is .3320
A coarse thread 3/8-16 drill hole size is .3125..
talk about making a mess of the threads..I've seen it done..

Port&PolishMan 04-21-2017 07:48 AM

Re: Door hinge bolts
 
You'd have to Drill First - and ( If I was going to do something like this )

I'd use a - Forming Tap - which can be done in - Two Stages . .
Go for a Class 3A Thread - so it's Snug on New Hardware . Most Hardware
Is Class 2A - and Class 1B Being Sloppy Crap from China .. Type workmanship ..

If You really want Great Class threads then Get Forming Taps made to do " J " Threads
Aircraft Industry ..

b-mac 04-21-2017 09:53 AM

Re: Door hinge bolts
 
I know this thread wasn't started for me and my '49, but I just bought a bag of (50), 3/8x24 (grade 8) bolts from Fastenal yesterday for $20...After being told by Bowtie-bits to try Ebay.

The pillar side it definitely 24 thread pitch. Just ran a tap through them last weekend. I guess I assumed the door side was the same.

I've got the other half of the bag it somebody wants them.

OrrieG 04-21-2017 01:35 PM

Re: Door hinge bolts
 
Quote:

Originally Posted by _Ogre (Post 7921284)
orrieg??? calling orrieg :D
i believe 55-7 had fine and 58-9 had course or vice versa

My 59 has fine threads, I believe it is to make it easier to barely loosen for adjustment.

Also "Size for size a fine thread is stronger than a coarse thread . This is both in tension (because of the larger stress area) and shear (because of their larger minor diameter). 2. Fine threads have also less tendency to loosen since the thread incline is smaller and hence so is the off torque" according to my mechanical design textbook.

Do not know if the 55.2-57 had coarse threads or fine.

MARTINSR 04-21-2017 04:02 PM

Re: Door hinge bolts
 
Quote:

Originally Posted by OrrieG (Post 7921858)
My 59 has fine threads, I believe it is to make it easier to barely loosen for adjustment.

Also "Size for size a fine thread is stronger than a coarse thread . This is both in tension (because of the larger stress area) and shear (because of their larger minor diameter). 2. Fine threads have also less tendency to loosen since the thread incline is smaller and hence so is the off torque" according to my mechanical design textbook.

Do not know if the 55.2-57 had coarse threads or fine.

Beautifully explained! Now even I understand. LOL No, really, that makes sense.

I don't know if you have been to traffic court but you sound like the cop and I sound like the guy who go the ticket,

Judge: Officer O'Mally can you please explain what you saw?

Officer O'Mally: Yes your honor, I was sitting in my patrol car on fifth street 38 feet on the North/West corner of Main street and fifth. It was 78 degrees with a Easterly wind of 12.5 MPH. I witnessed Mr. Martin driving toward me Northbound on Main street in what appeared to be excessive speed. I pointed my Binford 1200 Radar detector which is calibrated a the factory at 65.8 MPH and checked by me every morning at 8:12 AM in my patrol car with the Tuning fork proved by Binford. My radar gun displayed 38.4 MPH speed of Mr. Martin's car. Main street has a 30 MPH speed limit so I pulled Mr. Martin over and gave him a ticket.

Judge: Mr. Martin, can you now give your side.

Mr. Martin: Duh, I wasn't speeding.


:lol:

Team24 04-21-2017 07:31 PM

Re: Door hinge bolts
 
Don't want to throw a monkey wrench into this whole thing, but I replaced both of my A pillars on my cab with Dynacorn replacements and found that the lower threaded hinge hole on both pillars, were what I thought was 3/8X14but when I threaded a 3/8X14 ( or course thread bolt) into the pillar that bolt appeared to have too much play in the threads. What I found is I think it is a metric thread. I think I use a M10 but not sure as I don't have the package the bolts came in anymore. The metric bolt fit with a much better tolerance of fit to the threads. If I remember the head on the metric bolt took a 17mm socket. No saying this is what you have. Not saying this is what you should use. Just food for thought

OrrieG 04-21-2017 07:49 PM

Re: Door hinge bolts
 
Quote:

Originally Posted by MARTINSR (Post 7921945)
Beautifully explained! Now even I understand. LOL No, really, that makes sense.

I don't know if you have been to traffic court but you sound like the cop and I sound like the guy who go the ticket,

In college I got in an accident. I was pulling out of a lumber yard drive way that had my field of vision blocked with a truck. A speeding volvo ran into the 59 front bumper. Scratched the paint and crinkled the license plate on mine, took out the bumper, fender, bent the hood and door on the volvo. I got cited for failure to stop. Insurance company refused to help me fight it. Passenger in the car claimed significant neck injuries even though she was fine at the time of the accident. Luckily I had my camera and took lots of pictures, and came back and measured distances, skid mark lengths, etc. ASU has a great criminal justice program. I went over and found an enthusiastic student who hooked me up with textbooks on accident investigation. Did not take long to figure out that my reaction time, considering the blocked view, was above average and that based on the girls skid marks she was 15 mph over the speed limit (35 in a 20 zone) despite what she told the cop. I did not pay the fine, I went to court with photos, a plan showing the distances, etc. and my calculations. Judge asked the cop why he did not take the same measurements and he replied based on his judgement I was clearly in the wrong. Judge dismissed the case, chewed out the cop and I contacted the insurance company. They sued the "injured" passenger and her doctor, who happened to be the father of the driver for fraud.

mongocanfly 04-21-2017 08:06 PM

Re: Door hinge bolts
 
Way to go orrieg..way to turn the tables on em

mongocanfly 04-21-2017 08:30 PM

Re: Door hinge bolts
 
Martinsr..you put some thought into that..funny..sounds like something that would happen to me...

Port&PolishMan 04-21-2017 09:51 PM

Re: Door hinge bolts
 
Quote:

Originally Posted by OrrieG (Post 7922078)
In college I got in an accident. I was pulling out of a lumber yard drive way that had my field of vision blocked with a truck. A speeding volvo ran into the 59 front bumper. Scratched the paint and crinkled the license plate on mine, took out the bumper, fender, bent the hood and door on the volvo. I got cited for failure to stop. Insurance company refused to help me fight it. Passenger in the car claimed significant neck injuries even though she was fine at the time of the accident. Luckily I had my camera and took lots of pictures, and came back and measured distances, skid mark lengths, etc. ASU has a great criminal justice program. I went over and found an enthusiastic student who hooked me up with textbooks on accident investigation. Did not take long to figure out that my reaction time, considering the blocked view, was above average and that based on the girls skid marks she was 15 mph over the speed limit (35 in a 20 zone) despite what she told the cop. I did not pay the fine, I went to court with photos, a plan showing the distances, etc. and my calculations. Judge asked the cop why he did not take the same measurements and he replied based on his judgement I was clearly in the wrong. Judge dismissed the case, chewed out the cop and I contacted the insurance company. They sued the "injured" passenger and her doctor, who happened to be the father of the driver for fraud.

I Really Like this Story !

I Got one for Ya , all
Had a Tree Trimmer Guy - come by for a Estimate , and a few others ..
No got back right away and this Tree had some Carpenter Ants , and Had Grown into the side of the Large Out Building . .
Tree had to come down , and Another We wanted Trimmed ..

This Trimmer - Calls with No Lead Time - says I'm at the House and setting up - Where are You ?
I'm like Really - do We have a Contract as I don't recall setting on anything ..
Hell He say I'm all set up and have 7-8 Guys here -Waiting to do this Were in Town at this very Min. , but I'll Drop Everything and Rush over the Home as Fast as I can - Please don't start anything . .

OK I Fly Home 80 MPH , Rush in try to get things straight on what's , What and - Hey where's the Insurance Papers ?
To Many Guys Here and Your Leaking Diesel on My Lawn . .
Can't Please Keep Equipment in Driveway or on Road ..
Running all over - Had been Cutting on 1 Large Maple to have been Trimmed .

WOOOww , WHHOooow - Your Timming this Tree - NOT Taking it Down !
Huge 6 inch Limbs Coming Off - what the Hell !

OK another Meeting 3 Times Now ..
I'm getting the Bum Rush _ Now _ I realize _ Tell the Wife to Keep an Eye on them - I come Out form the Mens Room and 3 min. Tops and they are
trucking across the Lawn which was Wet from 2 days of Rain I forget to mention this Earlier .. ( above ) - Dam Man - Your Screwing Up the Lawn - Dude ! , Oh We'll Clean Up and straighten things out ..

I stated No Heavy Equipment on Lawn , Boss Man with Insurance Papers
gets all Hot and say I'm Costing Him Time .. I said No Way - You took Way to much Off the Maple it was suppose to be Light Time or Coning - Not a Hack Wack ! _ I can get Pissy Too !

They Go over and take down the Big 75 ft Pine , After they Break My Balls some more and Instruct Me that 2 Bush are in their way and Must Be Moved . .

I Digg up the Bushes to be consoling .. - so His Operator is able to get in tight with Bob Cat to Pick Large 4-5 ft 30 " across chucks .

OK - You kind get How this is Going - Next Thine I Know the Guy is Showing Off - Topping

They Tear up an Area where I had Fresh Top Soil - I told them it's all right as I was going to Redo the Garden Area - for the Wife anyhow ..
( God Help Me ) I'm Thinking Maybe I should just call the Cops !

So the Head A Hole is Now showing Off for His Works and takes like 38 ft pc of the Tree - Off the Top with Out Ropes - NO Chucking as Discussed !
Smart Ass - Drops the Tree by Accident into another 78 ft Big Ponderosa Pine - Now I'm Pissed OFF ! - Hey what the Hell Pal - You Kill that Tree and - That's It Were Going Down Town ..

Sure Enough It Died in 2 weeks - They had Twisted it when it got Side Swiped by Other Tree .. - His Insurance Company said I could sell the Lumber for $800.00 and they would Give Up around $2K - maybe $2500.00 . . . I Promptly said - No Freaking Way !

Back and Forth for 6 Months - They sent over Tree Arborist - Specialist , and then Even Hired a Third Party to Over see and Handle Us - as were all Done Talking to them !

I informed them $2500 just to Clean Up the Yard and Pull the Stump - Out of the Grd. and then Fix that Big Hole - where You going to be Digging with a Backhoe for 8 Hr. to get Out the Stump . .

OK - Her's where is gets Interesting - another 3 months , in that Time
We Contacted a Bunch of Young Lawyers - Just getting out of College ..
Passed the Bar etc. 5-6 yrs. of schooling and 75K-100K in Debt.

Yeah they want to work , and work Hard and Fast - and We Offered Free
Summer Camping and Canoeing - BB Basically - We got lots of Takers and Lots of other Offers once the work got out about what Theses Guy did to Kill a Huge - Beautiful Pine on the Corner of our Yard ..

We then called a College - Professor - Not just any College Professor
but the Special Guy that Headed Up a Federal Funded - ( Large Grant )
Investigation as How and Methods to do So using Math , Species ,
Health of Tree , Location of Tree , and Cross Sectional Sq. Inches of Tree
to be Calculated Read at Level 3 ft.- 4 ft. from Ground .
( Measure there to acquire Tree's Sq. In. ( IN ) Area ) for Purposes of Valve and Replacement = Calculation !!!!!!!!!!!!!!!!!!!!


This Formulator - this College Professor and 26 other Professors and Tree
Arborist came up with - has been Placed into Law . and Now being used By 11 other States .


Another Month and the Insurance Company Started Calling Me
several Times a Week to get Settled !

May I say We Got Paid Very Well Indeed - Never Used 1 Practicing Lawyer !

LET ME PORT YOUR WORLD - I - JUST CHANGED IT.

Just to Tighten Things Up : Have to Watch and Listen to that at Least Twice ..

https://twitter.com/shortdancevids/s...63531673993216

https://twitter.com/EngTechnow/statu...79743274352640

Port&PolishMan 04-22-2017 08:29 AM

Re: Door hinge bolts
 
This Is the Watered - Down Version - 4 Years after it became Practicing Law in 9 states .
After - Insurance Company's Lobbied to Suppress !


https://www.extension.purdue.edu/ext.../FNR-473-W.pdf

I like the Simpler Straight forward Version : with out the Side ways talking ..

I have a Link just PM - Me ..

MARTINSR 04-22-2017 10:52 AM

Re: Door hinge bolts
 
Quote:

Originally Posted by OrrieG (Post 7922078)
In college I got in an accident. I was pulling out of a lumber yard drive way that had my field of vision blocked with a truck. A speeding volvo ran into the 59 front bumper. Scratched the paint and crinkled the license plate on mine, took out the bumper, fender, bent the hood and door on the volvo. I got cited for failure to stop. Insurance company refused to help me fight it. Passenger in the car claimed significant neck injuries even though she was fine at the time of the accident. Luckily I had my camera and took lots of pictures, and came back and measured distances, skid mark lengths, etc. ASU has a great criminal justice program. I went over and found an enthusiastic student who hooked me up with textbooks on accident investigation. Did not take long to figure out that my reaction time, considering the blocked view, was above average and that based on the girls skid marks she was 15 mph over the speed limit (35 in a 20 zone) despite what she told the cop. I did not pay the fine, I went to court with photos, a plan showing the distances, etc. and my calculations. Judge asked the cop why he did not take the same measurements and he replied based on his judgement I was clearly in the wrong. Judge dismissed the case, chewed out the cop and I contacted the insurance company. They sued the "injured" passenger and her doctor, who happened to be the father of the driver for fraud.

There you go, awesome job! Being in the autobody industry for 40+ years I have seen such CRAZY **** when it comes to what insurance companies pay, and what they refused I want to puke! We have two in the shop right now, OUT AND OUT fraud, I always look at it as a cop, could I testify in court that this couldn't have happened the way they say it did. VERY often, I have believe without a doubt they are lying, but I couldn't stand up in court with my hand on the Bible and say so, this was not the case. Both these cars, I would put my life on it that they DID NOT happen as they say and there were multiple crashes that caused the damage to their cars. Real quick, one had OBVIOUS damage to the right side caused by the car going up against a building, so obvious it's crazy. Another car did NOT hit this car, this car was driven up against a building or fence or something. So that's the right side, the left side he drove over a curb destroying the wheel and blowing the tire. Then driving on that tire 5-6 miles at least at high speed with the tire completely destructing, ripping the fender liner out of the car and throwing chunks of tire into the engine compartment! We are talking breaking the back of the headlight, ripping the hood release cable out of the car, ripping the air cleaner resonator out of the car. The spare was on the car and the totally destroyed wheel with only the bead of the tire left on the rim was in the trunk. The fender was destroyed by the chunks of tire.

What did he claim? He said he came back to his car parked in a parking lot to see that someone had hit the right side pushing it into a curb and the tire had exploded! After being questioned about this he changed his story to two different claims still claiming that it was hit and run on the right and that he "got a flat" and drove to a gas station where the tire exploded when he filled it!

The insurance company is paying for both of them! I am sorry, they should be refused and he should kicked off the insurance!

But that isn't how it works, they pay it and then ***** about how much our hourly rate is.

Brian


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