The Adjustable Shank for TorkLift SuperHitch Everest Weight Distribution # TLM9010 uses a 5/8" hitch pin. If you're looking for one, I recommend the etrailer Receiver Lock # e98881.
This is a locking hitch pin that can be keyed alike to match other etrailer brand locks, and will work with 2" x 2", and 2-1/2" x 2-1/2" trailer hitch receivers. view full answer...