[DeTomaso] '74 Taillight Lens

[Guido deTomaso]

Don't the correct screws have a reduced shank, a long unthreaded portion that is smaller in diameter than the threads?  So the threads won't pass easily through the lenses, but the shank does?
Same era VW's did the same thing ... coincidence ?
That's my recollection anyway, thanks,
GD


      From: Larry Finch via DeTomaso <detomaso at poca.com>
 To: DeTomaso Forum <detomaso at poca.com> 
 Sent: Saturday, November 28, 2015 12:16 PM
 Subject: [DeTomaso] '74 Taillight Lens
   
  All,

  For what it is worth, the lens screws used on our  Carello tail light
  lenses, and the Altissimo versions, are properly called:

  phillips fillister head machine screws

  They are not very common at all. Less so in metric. I'm sure they are
  out there, but for years I've provided socket head cap screws which fit
  very nicely and resist stripping like phillips heads often do.

  John, I do not doubt your mechanical skills in the slightest. I suspect
  when you wrote "tap is not welcomed" you had found more than expected
  resistance, and being brass threads cast/embedded in plastic, you
  feared breakage of the plastic.

  I've re-tapped Carello and Altissimo threaded inserts many times. Make
  sure you have re-drilled the buggered hole with the proper size drill
  bit, and cutting oil is a must in the brass threads.

  Good luck.

  Larry

  [cid:42E0A449-45C8-44EC-876D-FA2853D9E83B at attlocal.net]

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-------------- next part --------------
   Don't the correct screws have a reduced shank, a long unthreaded
   portion that is smaller in diameter than the threads?  So the threads
   won't pass easily through the lenses, but the shank does?
   Same era VW's did the same thing ... coincidence ?
   That's my recollection anyway, thanks,
   GD
     __________________________________________________________________

   From: Larry Finch via DeTomaso <detomaso at poca.com>
   To: DeTomaso Forum <detomaso at poca.com>
   Sent: Saturday, November 28, 2015 12:16 PM
   Subject: [DeTomaso] '74 Taillight Lens
     All,
     For what it is worth, the lens screws used on our  Carello tail light
     lenses, and the Altissimo versions, are properly called:
     phillips fillister head machine screws
     They are not very common at all. Less so in metric. I'm sure they are
     out there, but for years I've provided socket head cap screws which
   fit
     very nicely and resist stripping like phillips heads often do.
     John, I do not doubt your mechanical skills in the slightest. I
   suspect
     when you wrote "tap is not welcomed" you had found more than expected
     resistance, and being brass threads cast/embedded in plastic, you
     feared breakage of the plastic.
     I've re-tapped Carello and Altissimo threaded inserts many times.
   Make
     sure you have re-drilled the buggered hole with the proper size drill
     bit, and cutting oil is a must in the brass threads.
     Good luck.
     Larry
     [cid:[1]42E0A449-45C8-44EC-876D-FA2853D9E83B at attlocal.net]
   _______________________________________________
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   use the links above.

References

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