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Hi folks,
I am in need of a long bolt ... 7/16-20 x 9, grade 8, hex. Have tried just about every business that is online. Closest I came was Fastenal which actually had a listing but no stock. Seems like I might have to get one made by a machine shop for big bucks.
Any ideas?
Thanks
Does it have to be a bolt?
http://www.mcmaster.com/#standard-threaded-rods/=pp2eus
racebolt has 'em up to 8.5" I bet aircraft spruce of coast fab can source just about any An size even if not in the catalog.
Fastenal
Fastenal Part No. (SKU): 18898
AHave them check their stock nationally, not just local.
Thanks guys. Those businesses were checked. National office for Fastenal said they could make new ones but I'd have to order 100 of them (at about $7 per). There's one Fastenal in the northeast that had 2 of them but they refused to give them up.
Rob, these bolts will go through the bottom of the upright and can't have thread.
Thanks for all the ideas. I'll try some of the suppliers for whom I only checked their catalogs and see if they can source them.
Why exactly can you just not purchase them from the Fastenal location that has 2 in stock?
Ya know Glenn, that's a great question. But I figured that if my local Fastenal couldn't get them to send them here, then they just didn't want to part with them. But why the heck not? After all, they're not keeping them to just look at them. They want to sell them. I'll see if they're open tomorrow.
Thanks
P.S. Those two did not show up on the National catalog so somethings going on. Thanks for pointing out the obvious to me though. I am often quite thick.
Recommend you give Fast Forward, Monterey, CA a call.
ARP. They have studs that will work. Good luck
Jim:
How about a rod and have the rod cut to the length you would need. Then have the two ends threaded (die) to suit? This will keep the threads away from the upright.
Just a note about having a bolt machined. The grain flow on fasteners is critical especially in the area of transitions (such as around the shank to the head). If cut, this will result in a weak spot. Also, without a proper fillet roll under the head, the fatigue life will also be reduced.
I think that a long stud, with nuts on the ends might be a valid and economical solution.
John D.
An AN7-80 is the longest 7/16-20 in that series and gets you to 8-3/32 grip length. Will that do ya?
I would not have 100% confidence in a grade 8 bolt in a suspension application. Who knows where they come from nowadays.
If Fast Forward can help you out as somebody suggested above-I would go with them.
check your caterpillar dealer they have a lot of large bolts in strange sizes--that's where I got some to upgrade the case bolts in my aircooled supervene
Get some 7/16" StressProof bar (it's a trade name product but widely available), cut threads on the ends. The shear loaded portion will be un-threaded and quite strong - StressProof is 115Kpsi and is designed for making fasteners out of so it machines very well. The tension load requirement is probably quite low in that application, and 7/16" is a fairly hefty fastener for the bottom of an A-arm anyway so a little overkill.
StressProof is also available in hex bar for people who need to make up special lug nuts and such. It is not heat-treated after machining.
Brian
Thank you for the continuing good suggestions guys.
Well this is interesting ... I just looked at a half dozen websites for Stressproof rod. The only supplier that listed it in 7/16 showed it as "or equivalent". The others had 1/4, 3/8, then skipped to 1/2 ...
So yours have been upgraded from 3/8-24 to 7/16-20? IIRC, the through bolts at the bottom of the rear upright when I had them were 3/8-24.Quote:
Originally Posted by Jim Garry
Another material option for custom studs is ETD150. The acronym stands for Elevated Temperature Drawn, and the tensile strength is 150,000 psi. I have used it for zillions of studs because it's a high strength alloy in its as-supplied state that has enough ductility for really nice thread rolling.
That's a kit car make your own deal, make and thread to size (weld one nut may be option), I would get an american made die, about $20 at msc or McMaster and use some 7/16'ths stock, can then put the threads only were you want them, can use mild steel cheapest, go to 4130 next, and 4340 but maybe hard to thread, (or have one threaded at a machine shop) ....... made one for a 83 reynard, it is no biggie to make bullet proof, look at most of the Reynard, "mild steel" I even fusion welded oxy-acet for the first time the retaining tube onto the.060 fabricated upright ...... don't ask me how I drilled that buggar out on the lathe ,,,,, yikes!! no youtube for gundrilling tips ....... good luck!! ....
think I used 4130 round just for a little extra strength for the bolt threads ...
heck, one of these guys have some 7/16th stock, send him some specs
How about 7/16 x 14? I needed some 1/2 x 9 inch, fine thread was harder to get than coarse. If you thread your own get an adjustable die and make a few passes to get down to size. You may need a longer bolt to get the shank long enough to pick up your shear loads.
I buy them at my local Caterpillar dealer...
Dave, I no longer have the Citation. This is for a Cheetah.Quote:
Originally Posted by DaveW
AHAH...:DQuote:
Originally Posted by Jim Garry
No wonder they are different. Good luck finding them.
Yes for the rear lower bolt through the upright. I have a suggestion or 2 about that bolt that makes it easier to change springs.
Arkend@sbcglobal.net
I had some custom fasteners made by Lawrence Hayes (HayesCages on this site) years ago for my FV front beam. Just supplied drawings....Perfect...
The caterpillar suggestions are excellent. My dad worked for the dealer in Indy and we used to take discarded track bolts, grind 'em to a point, and use them as tent stakes on winter camp outs. I still have a bunch of cat stuff around the shop that came from his stash and I've never been able to buggar one.
Will a 2L-4523 Hex Head Bolts from Caterpillar work?
Quote:
Originally Posted by Hawke
This one has specs but no price
https://commerce.cat.com/en/catcorp/bolts/2L-4523
This one has price but no specs.
http://www.finditparts.com/t/190/man...rpillar-2l4523
$11.67
Dick, that bolt looks good. But I can't tell what material it is. I'll just call them. Thanks.
Thanks to everyone.