Any aren't the hardtop nuts wing nuts or thumb screws?

Because you can’t install a thumbscrew with a machine and that allows for error in the process- A proper torque value can be built into the equipment used with a traditional fastener.
 
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They do - there’s just only so much variation a manufacture is going to go for-

Plus you have to be able to perform the task without damage to the vehicle and in a certain time frame- At least that’s my theory😆

Having worked alongside the manufacturing engineers as a design engineer, the mfg engineers are pretty darn creative, and usually don't complain (much) about the crazy stuff we design engineers come up with. It's the bean-counters that stop stuff like that. Darn bean-counters!
 
Because you can’t install a thumbscrew with a machine and that allows for error in the process- A proper torque value can be built into the equipment used with a traditional fastener.

I would add 'for safety'.
Anything that is designed to come apart easily will.
A thumb screw can be bumped by cargo or loosened by a kid.
Next thing you know...
 
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I would add 'for safety'.
Anything that is designed to come apart easily will.
A thumb screw can be bumped by cargo or loosened by a kid.
Next thing you know...

Very good. Have you guys ever wondered if they ever considered nutserts for them ..I realize you need some movement for adjustment boy those things can be aggravating , specially up around the rollbar.
 
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Very good. Have you guys ever wondered if they ever considered nutserts for them ..I realize you need some movement for adjustment boy those things can be aggravating , specially up around the rollbar.

If you're referring to the nuts being aggravating, I attached mine under the rail with silicon adhesive.
 
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