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Old 07-30-2014, 06:52 AM   #24
JayG
On the slippery slope
 
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Join Date: Mar 2014
Location: Austin and Palm Springs
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Quote:
Originally Posted by jb92563 View Post
Why would an auto maker use such stupid headed bolts?

Is it some kind of proprietary royalty favor to an obscure inventor or what?

Surely they don't think that it will prevent the DIY'ers and generate more dealer business?
JB
Have a look at this link, it gives some insight to the different fasteners
https://en.m.wikipedia.org/wiki/Spline_drive

It actually is a bit interesting

for example, you can use a robertson (square drive) bit in a triple square bolt
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