Casters 16ESpecifications 4 black poly casters 4 nickel plated nylon lock nuts. used exclusively on model TAL16E because the 1" posts on these casters are too short to fit all the other models. Description This Caster Kit contains 4 casters and 4 lock nuts. To replace damaged casters, loosen the lock nuts and remove casters from steel frame. Insert the post of a new caster through the hole in the frame. Twist the lock nut onto the threaded caster post above the