[Elecraft] KPA100 side panel stripped screw threads

Mon Jul 29 21:53:01 2002

The point of the matter is that there *IS NO HOLE*...  Contact of the
screw to the heatsink is only about 30% what it would be if there WERE a
hole.  It is being wedged between two flat surfaces.  This lack of contact
has caused many (most?) KPA100 builders to strip the small surface that
the screw comes in contact with either from repeated insertion/removal or
from over-tightening the screw. (Note: The amount of torque required to
strip these screws is MUCH less than you would think!  I would NEVER think
of leaving the screws on any other portion of my K2 as loose.)

73 de John - KC4KGU
K2/100 #2490

On Mon, 29 Jul 2002, Bob Tellefsen wrote:

> Steve
> Find out what the screw size is.  Then get an inexpensive tap for the next
> larger screw size at your local hardware store.  Retap the hole and insert
> an appropriate screw.
> 73, Bob N6WG
> 
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of
> [email protected]
> Sent: Monday, July 29, 2002 2:01 PM
> To: [email protected]
> Subject: [Elecraft] KPA100 side panel stripped screw threads
> 
> 
> 
> Hello all,
> 
> I managed to strip the threads in one side of the heatsink that receives the
> side panel screw. The is the thin channel, not a drilled and tapped screw
> hole. This happened after a couple installations of the KPA100. Those of you
> that will be swapping out tops may want to exercise caution. No hard
> feelings though, this is a great kit and the quality is high throughout!
> 
> I jammed in electrical tape to give something for the screw to grab on to
> but am searching for a more elegant way of fixing this. Perhaps an insert of
> some sort that would be inserted into the heatsink?
> 
> Steve
> Kc7zvm
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