Threaded portion opens to slip over chain. Different sizes and quantities available.
1/8": Fit in drowner locks; working load 220 pounds. 1 1/2" Long. 1/4" Opening
3/16":Made of 3/16" steel, jaw opens 1/4", and the working load limit is up to 440 lbs.
1/4": 1/4" Thick, 2-1/4" long, up to 880 lbs
5/16": 5/16" Thick, 3" long, up to 1540 lbs