IKEA Besta Manual page 28

Step 8
A. Position the chair and backrest assembly on its side.
B. Insert the alignment pin (#123786) in the open hole on the chair.
C. Mount the leg on the other end of the alignment pin. Rotate the leg until the other hole on the
leg is lined up with the hole on the backrest.
D. Insert washer (#102319) between the leg and backrest.
E. Insert short shank screw (#122607) through the hole in the leg, through the washer, and into
the backrest hole. Start threads by hand. Use the Allen wrench (#100001) to tighten the screw.
Note: Be sure to use the shorter of the two long screws as shown in picture (i) above.