You will need: 3x 608 skateboard bearings 2x M8-1.25 x 40mm Socket head cap screws 1x M8-1.25 nut (preferably nylock) 3x Either M6 30mm button head bolts or 1/4-20 x 1.25" button head bolts 3x Either M6 nuts or 1/4-20 nuts (preferably nylock) 4x #8 x 3/4" screws to attach wall mounts to the clamp (I used 10-32 flat head bolts and tapped the holes but you do you) 6x #8 screws to attach to wall/whatever