I checked the diameter of the 12A bolts I have......The threads were about .009 thousands
proud of the bolt shank diameter........Probably caused when the threads were rolled...IMHO
-------------- Original message from "George Lendich" <lendich@optusnet.com.au>: --------------
Kelly,
I found a local Company who does rolled threads, but will only do a minimum of 16, I said I can handle that - but I don't know whether to cut down 12 A bolts, cut down 13B bolts or get some high tensile rod and make new ones.
Any suggestions on the best way to go?
Someone suggested the 13B's are necked-down, I will have to check on this.
There is also the suggestion of threading both ends, in a stud configuration. This may not be necessary if using 12A bolts, but does allow for some variation in length
George,
Bill is correct of course about rolled threads being the way to go but here
in the middle of the USA availability and affordability are a problem.......I do
not have my 12A bolts in front of me at the moment and will have to double
check if the threads are proud of the bolt diameter on the ones I have.........
--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2
Kelly,
If someone can find how long the bolts need to be I can see if we can find a source to mail order them. ARP fasteners are a high quality automotive source.
WWW.ARP-bolts.comWe should check to see if they will make studs to replace the 13B bolts.
Bill Jepson