Self-tightening nut that provides tight fastening with a unique screw thread

Re:Self-tightening nut that provides tight fastening with a ... by bradfa on Monday November 10, 2014 @01:35PM (#8585316)

Likely high temperatures and/or chemical resistance, maybe very high tightening torques or force, but possibly others, too. Mostly more specialized fastening, I would guess.

But think about the bolts and nuts that hold the exhaust system to a car engine. Temperatures are going to be very high and nylon wouldn't withstand those temperatures. Things like that.

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Re:Self-tightening nut that provides tight fastening with a ... by mhb on Monday November 10, 2014 @01:55PM (#8585466)

Lock washers?

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Re:Self-tightening nut that provides tight fastening with a ... by swimfar on Monday November 10, 2014 @05:56PM (#8587178)

According to a NASA fastener design manual[1](page 9) split-ring style lock washers are useless for locking purposes. They say that star washers do proved some additional friction/locking action, but at the cost of damage to the surface(the friction comes from digging into the surface).

[1] http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/1990000...

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Re:Self-tightening nut that provides tight fastening with a ... by mhb on Monday November 10, 2014 @06:20PM (#8587298)

Thanks. That's great to know. And lots of other useful information.

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