Heavy Duty Seel Spring Loaded Locking Barrel Bolts (1 Pair) Steel Spring Loaded Barrel Bolts with screws 1 pair (2 each) Plate measures 2-3/4" x 1-1/2" Total length 5-1/4", length of pin 1-1/2", diamator of pin 1/4" Use on stationary door for sheds, dutch door, endless uses