Think you are looking for Cam lock & nuthttp://www.homedepot.com/p/Crown-Bolt-15-mm-x-14-mm-Plain-Phillips-Drive-Cam-Connectors-4-Pieces-37984/100338002
Double 0 DJ/Producer/ArtistProducer in Kidz In The Hall-------------------------------------------twitter: @godouble0IG: @godouble0www.thinklikearapper.com