[IC27A] Securing the Cabin

[PAUL]

Hi all,
Paul here again.  You all have been such a wealth of knowledge I have another 
puzzle for you.  It might be an easy one...  I just purchased my 1985 C27 and 
there is no hasp I can secure the cabin with.  There are 4 drilled holes on the 
top slider from the original and a "brass circle on the top board.  Looking to 
be able to lock it up.  Advice?
Regards...