JBF National latches and catches are manufactured from the highest quality materials. They are designed and tested for ultimate reliability and durability. CA-3508 is manufactured from passivated stainless steel with a 0.144 in. diameter mounting hole. This model features three high tension compression springs and allows for tension adjustment based on base/strike hole distance. The ultimate strength rating for this model is 600 Lbs. Uses strike SK-3500.