Overcenter buckles allow the user to add additional tension to the strap using a simple latch system with minimum wear to the strap itself. The difference between a cam buckle and an overcenter buckles is that the latch system found on overcenter buckles allow for extra tension. The tightness a cam buckles can perform relies on the user to be able to pull as much webbing as possible through the cam buckle itself. With an overcenter buckle, once the user has pulled as much webbing through the latch as they can, the latch is toggled shut. This adds several inches more worth of tension depending on the size of the latch. Our buckles with over 2000 Lbs capacity have a locking feature to prevent accidental release. Sizes are available for 1”, 1-3/4”, and 2” webbing widths. Capacities are available in 300 Lbs, 1980 Lbs, 2500 Lbs, 3000 Lbs, 4400 Lbs, and 5000 Lbs. Safety working load: The maximum load a tie-down should be subject to during normal use. Safe working load should not exceed 1/3 of the rated capacity. Rated capacity: The minimum load a complete assembly will withstand before failure in a laboratory setting when the product is new.