[Healeys] 4K5917 what's so special?

Michael Salter michaelsalter at gmail.com
Sun Jul 21 06:54:28 MDT 2013


Here is one for the purists....
The overdrive relays, there are 2, on a BN1 are secured to the heater duct by
4 self tapping screws part # 4K5917.
According to the parts book that is the only place where screws with that part
number are used on any model as far as I can tell.
Does anyone know what is so special about these 4 screws, or for that matter
know how they differ from others used generously throughout Healeys.


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