Eye Bolt Tuners

[Arnold Kelly]

Has any tried eye bolts as bass tuners?  If so, what size did you use and how were they placed?

[Bjørn Houdorf]

Yes I use 2 eyebolts as bass tuners, they work like  friction pins.
The size is M8 and I tighten them with a screwdriver.

http://diybass.wordpress.com/2013/12/07/water-barrel-bass/