A490 bolt in snug-fit holes
A490 bolt in snug-fit holes
(OP)
Hi all.
Can anyone offer guidance on the diameter tolerances of the unthreaded part of an A490 bolt shank?
I would like to use these similarly to studs in an unthreaded hole.
The assembly has 4 - 1.5 inch dia bolts to connect a 4 inch thick assembly to a 1.5 inch thick steel mounting plate. I would like the 1.5 inch thick mounting plate to come pre-assembled with 4 bolts somewhat tight in the holes, then we'd present the mating assembly (with slightly oversized holes, and we'd add nordlock washers and nuts. We have a method developed that will prevent the bolts from turning when the nut is torqued.
Any comments?
Can anyone offer guidance on the diameter tolerances of the unthreaded part of an A490 bolt shank?
I would like to use these similarly to studs in an unthreaded hole.
The assembly has 4 - 1.5 inch dia bolts to connect a 4 inch thick assembly to a 1.5 inch thick steel mounting plate. I would like the 1.5 inch thick mounting plate to come pre-assembled with 4 bolts somewhat tight in the holes, then we'd present the mating assembly (with slightly oversized holes, and we'd add nordlock washers and nuts. We have a method developed that will prevent the bolts from turning when the nut is torqued.
Any comments?





RE: A490 bolt in snug-fit holes
Best regards - Al
RE: A490 bolt in snug-fit holes
and that is what you are asking for. Bolts specs
do not care about the material and I think are all
the same regardless of material. The coating or finish
may increase this diameter however.
RE: A490 bolt in snug-fit holes
http://c
Regards,
Cory
Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips Fora.
RE: A490 bolt in snug-fit holes
RE: A490 bolt in snug-fit holes
Do you know the head size tolerance for width across flats for an M36 hex head bolt?
Thanks in advance!
tg
RE: A490 bolt in snug-fit holes
Regards,
Cory
Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips Fora.
RE: A490 bolt in snug-fit holes
Maybe I'd think about providing counterbores in the mounting plate so a pushnut could be used on each bolt. With typical thread conventions the threads may not extend within 1.5 inches of the head, so the pushnut would have to grip the body diameter.
http://www.aaronspushnuts.com/
http://www.connexusa.com/
Maybe even an O-ring tight on the bolt body
RE: A490 bolt in snug-fit holes