This kit comes with everything you see here. Plus 8 each: 5mm x
20mm stainless steel cap screws. 4 each: 4mm x 16mm stainless steel
cap screws for Z motor. 4 each: 4mm x 12mm stainless steel cap
screws for X motor. 2 each: 6mm x 75mm stainless steel cap screws
for X extension and bearing block. 2 shim washers, just in case. 2
cardboard tubes for the ball nuts. These are added just in case you
need to remove one of the ball nuts from the ball screw. Go Thomson
Linear web site for video instructions on how to safely remove the ball
nut from the ball screw.