Originally Posted by Campin Cajun
I guess I should have typed better. The most common Torx head screws are 6 pointed. The ones on the bay doors are 8 pointed. A #2 Robertson bit will fit it.
Sorry for the confusion.
Originally Posted by bruceatlam
I don't find any torx fasteners on my Wildcat, but I do have quite a few #2 square drive fasteners. Maybe that's what you're looking at -- they can look like torx.
I thought more carefully about your answer and realized that this is, indeed, an 8-pt fastener that fits a square #2 Robertson driver, so I am able to work with them.
The fastener and driver combination seems to be a combination that uses the worst of the two systems. So, I suspect it is done to work around the Torx and Robertson patents.
The screws look like a #10, and the Robertson world would drive them with a larger #3 driver, not a #2. And the Torx world would use a real 8pt (you may be right that it is 6 pt) driver, not 4 pt.
Thanks to all for your advice.