Probrico Entry Locks is designed to complete both conventional and modern-style interior doors for commercial and residential applications. It has been designed and tested with strength and durability in mind and conforms to ANSI Grade 3 Exceeds 200,000 cycles and a 5-pin brass tumbler cylinder to meet standards for residential security. Every set includes 3 keys; if you order 2 sets, the 2 locks will have different keys. Please make sure this is the function you need before placing an order. To meet customers' needs to a greater extent, we also provide two types of strike plates. Please note: The latch plate is square and unremovable. If you find that the parts are missing after receiving the product, please contact us the first time.