![]() |
Register or Log In To remove these advertisements. |
|
|
![]() |
|
Thread Tools | Display Modes |
![]() |
#1 |
Registered User
Join Date: Sep 2017
Location: Springerville Arizona
Posts: 16
|
Frame restoration bolts
Hey everyone I’m in the process of getting ready to start reattaching my crossmember to the frame and many other parts. What has eveyone use for bolts to do this? Thanks in advance
Posted via Mobile Device |
![]() |
![]() |
![]() |
#2 |
Registered User
![]() Join Date: Feb 2013
Location: Spring Hill, Florida
Posts: 465
|
Re: Frame restoration bolts
Any time I removed rivets from the frame I replaced them with grade 8 hardware.
I am also fond of serrated flange nuts for this kind of stuff. |
![]() |
![]() |
![]() |
#3 | |
The Older Generation
![]() ![]() ![]() Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,493
|
Re: Frame restoration bolts
Quote:
LockDoc
__________________
Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
|
![]() |
![]() |
![]() |
#4 |
Registered User
Join Date: Dec 2009
Location: Kirkland, WA
Posts: 1,302
|
Re: Frame restoration bolts
+1 to grade 8, I use flat washers on each side to save my paint and prevent rust and also use red loctite -- NO lock washers. Prime and paint over the bolts and washers afterwards.
__________________
1968 LWB C20 / AC / Wood Bed |
![]() |
![]() |
![]() |
#5 |
Senior Member
![]() Join Date: Mar 2003
Location: Colfax-California
Posts: 8,530
|
Re: Frame restoration bolts
I agree, no lock washers. I use the pinch type self locking and fine thread bolts. Torque 'em to 70lbs
|
![]() |
![]() |
![]() |
#6 |
Senior Member
![]() Join Date: Feb 2009
Location: Northern Nevada
Posts: 7,240
|
Re: Frame restoration bolts
Subject recently came up someone's undercarriage had the wrong bolt finish (i.e., some hardware was not phosphate coated).
From what I see, you don't have much choice in the matter. Take the axle plates for example. They're (GR 8) 9/16" hex bolts, lock washers and nuts. The bolt threads are 3/8-24 x 1. Unless you can locate NOS, where are you going to find that in anything other than stainless or yellow zinc? I suppose you could attack the zinc and have them coated. I'm on-board with the factory look & parts, and that's my goal, but if you ask me, yellow zinc works.
__________________
Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assembly kit for restoring the (a) truck from the ground up. My build thread, and more on the assembly kit https://67-72chevytrucks.com/vboard/...d.php?t=730025 |
![]() |
![]() |
![]() |
#7 |
Registered User
![]() Join Date: Mar 2013
Location: Lenexa, KS
Posts: 547
|
Re: Frame restoration bolts
You can get black phosphate bolts from Mcmaster.
|
![]() |
![]() |
![]() |
#8 |
Registered User
Join Date: Sep 2017
Location: Springerville Arizona
Posts: 16
|
Re: Frame restoration bolts
Thank you everyone for the replies I am wanting to keep the truck as close to original as I can.
|
![]() |
![]() |
![]() |
#9 |
Registered User
Join Date: Jun 2015
Location: Indanapolis, IN
Posts: 604
|
Re: Frame restoration bolts
I buy a lot of "truck part" hardware from mcmaster.
![]() |
![]() |
![]() |
![]() |
#10 |
Registered User
Join Date: Nov 2014
Location: Bigfork, Montana
Posts: 1,137
|
Re: Frame restoration bolts
I used hex head flange bolts (also called frame bolts) on my crossmembers. Also did what LocDoc said: drill out to 7/16" where possible. The holes were so wallowed out on my engine crossmember (old 4x4 farm truck) I had to weld up the holes & re-drill to 3/8" because I had clearance issues with 7/16".
I've taken yellow zinc hardware, bead blasted it then re-finished in a black phosphate home brew. It comes out out looking good but is a lot of work. Add to that, I think the zinc coating provides better protection. I use McMaster a lot also. |
![]() |
![]() |
![]() |
#11 |
Registered User
Join Date: Jun 2016
Location: Vancouver, Washington
Posts: 423
|
Re: Frame restoration bolts
I went with stainless grade 8 bolts and lock nuts.
__________________
![]() |
![]() |
![]() |
![]() |
#12 |
Registered User
Join Date: Dec 2009
Location: Kirkland, WA
Posts: 1,302
|
Re: Frame restoration bolts
I hope those are ARP because afaik they are the only manufacturer of stainless that is as strong as grade 8
__________________
1968 LWB C20 / AC / Wood Bed |
![]() |
![]() |
![]() |
#13 | |
Registered User
Join Date: Jun 2016
Location: Vancouver, Washington
Posts: 423
|
Re: Frame restoration bolts
Quote:
![]() Have a good night!
__________________
![]() |
|
![]() |
![]() |
![]() |
#14 | |
Registered User
Join Date: Sep 2017
Location: Springerville Arizona
Posts: 16
|
Re: Frame restoration bolts
Quote:
|
|
![]() |
![]() |
![]() |
#15 | |
Senior Member
![]() Join Date: Feb 2009
Location: Northern Nevada
Posts: 7,240
|
Re: Frame restoration bolts
Quote:
Black phosphate replacement nuts and washers would be great, but I'm missing them. That's partially because can't make out what "18-8", and "18-10" nuts are. Seems to me you want an equal nut and washer for a Grade 8 bolt. In other terms, how does 18-8, 18-10 or other suit a Grade 8 bolt? Grade 5 as well. I believe original hardware is manganese phosphate. Here's a website that explains the difference between that and zinc phosphate. Judging by the photo, I'd say the nuts are zinc phosphate, and beautiful finish. IMO it's superior in appearance. Likely more corrosive resistant too. Might bring a bit too much shine to under the hood, but would make for a beautiful under-carriage, IMO http://imf-co.com/portfolio/phosphat...houston-texas/
__________________
Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assembly kit for restoring the (a) truck from the ground up. My build thread, and more on the assembly kit https://67-72chevytrucks.com/vboard/...d.php?t=730025 |
|
![]() |
![]() |
![]() |
#16 |
Registered User
Join Date: Jun 2015
Location: Indanapolis, IN
Posts: 604
|
Re: Frame restoration bolts
18-8 and 18-10 is the amount of chromium and nickel the stainless has in it. It's not a grade like 5, 8, etc.
|
![]() |
![]() |
![]() |
#17 | |
Senior Member
![]() Join Date: Feb 2009
Location: Northern Nevada
Posts: 7,240
|
Re: Frame restoration bolts
Quote:
If you go to the hardware store, they have "grade 8" nuts and washers for grade 8 bolts. The same doesn't seem to apply for grade 5 bolts. I suppose that means standard nuts and washers work for grade 2 and grade 5 bolts.
__________________
Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assembly kit for restoring the (a) truck from the ground up. My build thread, and more on the assembly kit https://67-72chevytrucks.com/vboard/...d.php?t=730025 |
|
![]() |
![]() |
![]() |
#18 | |
Registered User
Join Date: Dec 2009
Location: Kirkland, WA
Posts: 1,302
|
Re: Frame restoration bolts
Quote:
__________________
1968 LWB C20 / AC / Wood Bed |
|
![]() |
![]() |
![]() |
#19 |
Registered User
Join Date: Dec 2009
Location: bisbee, arizona
Posts: 1,529
|
Re: Frame restoration bolts
I think the best they can do in terms of strength is a little bit more than grade 5.
There are vendors who deal with the NCRS crowd that actually sell the factory rivets, you have to heat them up and install them yourself . |
![]() |
![]() |
![]() |
#20 |
Registered User
Join Date: Jun 2015
Location: Indanapolis, IN
Posts: 604
|
Re: Frame restoration bolts
When looking at bolts on mcmaster.com compare tensile strength of the bolts like grade it said 150000 and 18-8 said 70000
|
![]() |
![]() |
![]() |
#21 | |
Registered User
Join Date: Nov 2014
Location: Bigfork, Montana
Posts: 1,137
|
Re: Frame restoration bolts
Quote:
https://www.nutty.com/Grade-8-Hex-Fl...uts_c_367.html |
|
![]() |
![]() |
![]() |
#22 |
Registered User
Join Date: Sep 2017
Location: Springerville Arizona
Posts: 16
|
Re: Frame restoration bolts
Thanks for all the great replies I think I have it all figured out what I’m going to use once everything gets back from being powder coated. Does anyone happen to know the size of the bolt for the Panhard bar to the frame. I misplaced the original one and would like to order all my bolts at one time rather than separate orders. Thanks in advance
|
![]() |
![]() |
![]() |
#23 |
Registered User
Join Date: Apr 2011
Location: formerly NY currentlyNC
Posts: 390
|
Re: Frame restoration bolts
an actual grade 5 nut will have 3 little depressions on the face like the 3 lines on the head of the bolt...find a better hardware store....
__________________
1970 short step c10 leaf spring 454 |
![]() |
![]() |
![]() |
Bookmarks |
|
|