HEX NUT. 5/16-18. ZINC

Listed on the following equipment:
Paramount - Low back extension - SP6000
Paramount - MP 3.5
Paramount - MP 4.0
Paramount - MP Series - 2.5
Paramount - Rotary Chest - SP5800
Paramount - Rotary Chest Machine - AP-4200
Paramount - Rotary Chest Press - AP-4200

* Images may not be identical to part.