hyperfocal
New member
I just got a great deal on a used 6100, but unfortunately it didn't come with any of the mounting hardware. Does anyone know the inner diameter of the hole on the small bracket (pictured below)? Mine is in my tank, securely jury-rigged in place -- I'm reluctant to pull it out since I'm not sure I'll be able to get it back in as securely again... at least until I get a proper DIY bracket made 
Many thanks!
Many thanks!