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Old 01-20-2020, 03:21 PM   #27
DavidG
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Join Date: May 2010
Location: southeastern Michigan
Posts: 10,101
Default Re: Part For A 34 Ford Half Way Made Anyone like to Guess What It Is

Lawrie,

And then there is the Canadian invention, a Robertson head which which has a square depression, which you may have encountered on a Model A down under. Ford of Canada stopped using them with the '32 models.

They're a great fastener for places where you do not want the screw driver to ever slip out of a slot, such as attaching the molding retaining the roof insert fabric on a pre-'37 adjacent to a freshly-painted roof. They are popular today with those who install deck slats; the entire boardwalk in Miami Beach is attached with Roberson screws.
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