Posted by Joe on October 23, 2006, 11:10 pm
> Imagine you have a threaded (tapped) hole that is 1/4" deep with a 3/4"
> stainless bolt. You will likely strip the threads out before you break
> the bolt... Not make the hole 3" deep and fully threaded... The bolt
> will snap if tightened too much before the sum "shear point" of the
> threads is reached...
Bad form to reply to one's own post, but note that the 3" depth was supposed
to be 13" depth.... Even at 3", the threads might shear off before the bolt
broke - especially in aluminum.
Joe in Northern, NJ - V#8013-R
Currently Riding The "Mother Ship"
Ride a motorcycle in or near NJ?
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Posted by ian field on October 25, 2006, 4:51 pm
>> Imagine you have a threaded (tapped) hole that is 1/4" deep with a 3/4"
>> stainless bolt. You will likely strip the threads out before you break
>> the bolt... Not make the hole 3" deep and fully threaded... The bolt
>> will snap if tightened too much before the sum "shear point" of the
>> threads is reached...
> Bad form to reply to one's own post, but note that the 3" depth was
> supposed to be 13" depth.... Even at 3", the threads might shear off
> before the bolt broke - especially in aluminum.
> Joe in Northern, NJ - V#8013-R
> Currently Riding The "Mother Ship"
> Ride a motorcycle in or near NJ?
> http://tinyurl.com/5apkg
> http://www.youthelate.com
> Help Cure Cancer: http://yunx.com/UDvroc.htm
My own experience of using stainless bolts is that they loosen under
vibration more readily than the regular steel ones.
Posted by Joe on October 23, 2006, 10:49 pm
> Also any stainless screw will require anti-seize on
> the threads to prevent galling.
Stainless won't gall on aluminum. aluminum may gall on stainless though.
:)
--
Joe in Northern, NJ - V#8013-R
Currently Riding The "Mother Ship"
Ride a motorcycle in or near NJ?
http://tinyurl.com/5apkg
http://www.youthelate.com
Help Cure Cancer: http://yunx.com/UDvroc.htm
Posted by Bike Guy Joe on October 23, 2006, 8:08 am
mm wrote:
> Pre. S. Is there such a thing as tempered aluminum?
Yes, aluminum has different "tempers"...if you warm it with a torch,
you will be fine, don't get it smoking hot....it melts at 1200 degrees
F.
DON'T use grease as an "anti-seize" compound, it will harden oe even
bake in place and you'll have a mess.
You can buy a lifetime supply of anti-seize for 5-6 dollars.
Posted by z on October 23, 2006, 3:42 pm
Bike Guy Joe wrote:
> mm wrote:
> > Pre. S. Is there such a thing as tempered aluminum?
> Yes, aluminum has different "tempers"...if you warm it with a torch,
> you will be fine, don't get it smoking hot....it melts at 1200 degrees
> F.
> DON'T use grease as an "anti-seize" compound, it will harden oe even
> bake in place and you'll have a mess.
> You can buy a lifetime supply of anti-seize for 5-6 dollars.
Also, somewhat ironically? Loctite, etc. have antiseize properties,
since they insert a layer of acrylic between the two metals.
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> stainless bolt. You will likely strip the threads out before you break
> the bolt... Not make the hole 3" deep and fully threaded... The bolt
> will snap if tightened too much before the sum "shear point" of the
> threads is reached...