ever see a bolt fail like this
ever see a bolt fail like this
(OP)


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ever see a bolt fail like this
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ever see a bolt fail like thisever see a bolt fail like this(OP)
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RE: ever see a bolt fail like this
RE: ever see a bolt fail like this
Thy don't look like they were attached, just against each other.
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P.E. Metallurgy, Plymouth Tube
RE: ever see a bolt fail like this
RE: ever see a bolt fail like this
RE: ever see a bolt fail like this
RE: ever see a bolt fail like this
I'm actually surprised that these quality issues aren't more common with commercial grade zinc plated steel bolts. Making a bolt for just a few cents each is not as easy as it seems.
RE: ever see a bolt fail like this
RE: ever see a bolt fail like this
And won't they be surprised when they get the $500 metallurgist bill.
In all reality this was on a motorcycle lift, I do believe I will be replacing all the bolts involved with the lift mechanism before another bike goes up in the air.
RE: ever see a bolt fail like this
It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all.
RE: ever see a bolt fail like this
RE: ever see a bolt fail like this
An MIS-TAKE (er, MIL-SPEC) aeor-assembly (er, aerospace (er, error-space) assembly) using those style thin-headed costs $3500.00 per head. One-time use guarraneeted! (you can always put it together, you just can't use much torque keeping it together.)
RE: ever see a bolt fail like this
RE: ever see a bolt fail like this
RE: ever see a bolt fail like this
Regards,
Mike
The problem with sloppy work is that the supply FAR EXCEEDS the demand
RE: ever see a bolt fail like this
RE: ever see a bolt fail like this
RE: ever see a bolt fail like this
RE: ever see a bolt fail like this
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RE: ever see a bolt fail like this
From then on, we have gone from producing 125 million tons per year of hot metal steel, now down to about 60 to 70 million tons, the makeup coming from all the third world nations that can produce steel and Chine. Some of our imports come from Europe but now only alloyed and special steels. All the stuff from third world nations and China are suspect of quality and meeting all specs that we publish, all through the U.S. Depts of State and Commerce. I don't know of any imports that are tested, checked analysed for quality today.
The main cause of all this is the WTO, as the politicians have agreed to quantity and a splash of quality but there are no requirements of meeting U.S. Standards that I am aware of. If a country states that the type of steel is-as listed it is checked for tarriffs only. Like food imported the FDA has just so many people and no budget for poisons. For steel products there is no FDSteel and they could care less since by the time the junk rusts out or in this case is found out to fall apart that politician is long gone and on full retirement. One of the great cases in point is the new Bay Bridge in Oakland with the embedded long bolts that have all failed that hold the key to the cables. A 6 billion dollar error that they have tried to cover up since the first failure. Made by a company from Brazil and put into the manufactured piece by the Chinese. This piece is the key to safety of the bridge and we (the politicians) gave the job to outside/offshore outsourcing countries that we consider third world developing nations.
The main cause as indicated is outsourcing, but, when we allow our beancounters to make a selection on price and for profit without any control over quality and how the product is made, I feel we must at least investigate the processing and quality we ourselves adhear to. In your case, you are lucky the motorcycle didn't fall on you as a result of inadequate manufacturing. A law suit over a simple bolt could have changed our imports practice, perhaps and if you had the money for the lawyers. (sometimes they are in good stead. Perhaps some day our professional organizations will take on these issues. Today mostly, we have become pansies.
RE: ever see a bolt fail like this
RE: ever see a bolt fail like this
marks on the side of the hex head don't inspire confidence either.
I also concur with comments about Harbor Freight. To call their tools Chinese junk gives Chinese junk a bad name. I once returned a small belt sander after seeing how appallingly unsafe it was. I didn't hang around long enough to insist on a full refund, but I won't be going back there soon.
"If you don't have time to do the job right the first time, when are you going to find time to repair it?"