Sometimes you need backup. Get the Ozonics Mounting Hardware Repair Kit and be ready when plans go awry. The kit includes two (2) Replacement Thumb Screws [Male], two (2) Replacement Thumb Screws [Female], two (2) Replacement Wing Nuts, two (2) Replacement Ball Compression Nuts, and six (6) Replacement Mounting System Washers.

Disclaimer: Not to be use with a smart arm.