Ubiquiti RocketDish RD-2G24 Quick Start Manual page 6

5. The Elevation Rod includes washers and nuts. Remove one
washer, one spring lock washer, and one nut. Use them to
secure the Elevation Rod when assembling.
6. Attach the Elevation Rod to the Main Mounting Bracket.
a. Insert the Elevation Rod into the Main Mounting Bracket.
b. Secure the Elevation Rod with the washer, spring lock
washer, and nut.
7. Each M10x150 Carriage Bolt includes a washer, spring lock
washer, and nut. Remove these and use them to secure the
bolts when assembling in step 13.
8. Insert the four M10x150 Carriage Bolts into the Main
Mounting Bracket.