Control arm bolt replacement... needed?
#16
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I know all about rounding out the socket-head and having to drill the *&^%$# things out.
Last edited by springer3; 02-24-2008 at 10:21 AM. Reason: Added "failure mode" control to reason for soft/weak bolts
#17
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Suspect bolt markings list with examples. It's a PDF.
Here is another PDF that is from a DOE training session on counterfeit fasteners and industrial valves, etc.
Here is another PDF that is from a DOE training session on counterfeit fasteners and industrial valves, etc.
Almost all the counterfeit bolts in the 1990s scandal were manufactured in Japan. In their defense, the Japanese factories did not understand the SAE and ASTM grade marks. They filled orders from unscrupulous suppliers who requested the marks on bolts meeting lower grade standards.
Listing a head mark on the USPTO fastener registry simply means they registered. It does not imply the Government or anyone else has verifyed they provide bolts that meet the requirements for their grade markings. It is still pretty much caveat emptor in the bolt business.
#18
Nordschleife Master
And, ahhh, if ya need me, springer, I'll be over here... in the Jesus-please-keep-my-seat-bolts-unbroken corner of the room.
(And I feel yer pain, brother, in rounding out one of those factory seat socket heads -- &%$#%!!!)
#19
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Honestly though, I can't come up with a good reason not to use the strongest bolt possible when holding the seats down.