I scraped off the paint, there's the little hash marks. . . they are posidrive.
I guess you learn something new every day.
Thanks
>>>>>>>>>>
Date: Wed, 6 Jun 2001 12:10:01 -0600
From: Peter Zaborski <peterz@merak.com>
Subject: RE: Brass Screws Posi-Drive?
> From: Scott Tilton [mailto:sdtilton@yahoo.com]
> Sent: Wednesday, June 06, 2001 11:43 AM
>
> What does posidrive look like? I notice that your comm
> number is from a later TR6. Any chance that earlier cars
> (mine was made in FEB 1970) were using different hardware?
Here's a couple of views of the screws and the bit where you can see the
difference:
<http://www.keenfastsy.com/Keenpozidrive.cfm>
<http://www.wihausa.com/742pozidriv90mm.htm>
Basically they are like philips with the + but then there is another four
smaller cross hatches like a x, eight in total. I think the angles are
different as well for the taper of the bit. On the second photo above, you
can see the smaller x ribs on the bit in between the main + ones.
It's possible the early cars used philips. To see what a posi screw looks
like, look at the 4 screws which hold the carb cover on an original ZS carb.
Those are posi for sure. Unless someone changed 'em of course.
Peter Zaborski (CF58310 UO)
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