[Elecraft] Installation of Q7 and Q8 HELP!!!!

[DR]

I followed the PA transistor Q7 and Q8 installation instructions to the letter 
and there is NO way I can secure the heat sink cover.  Yes, the nylon 
shoulder washer is flush with the hole on the transistors and I made sure it 
is centered,  I even measured the screw to make sure I'm using a 1/2".  I did 
a search to see if anyone else had a problem with this step but I couldn't 
find anything that would give me a hint as to what I'm doing wrong.  I REALLY 
want to know how the heck this is going to work when all this stuff is on the 
back side and it is higher than the standoff spacers. 


PLEASE help me with ANY suggestions
72/73
Ann