Limited Lifetime Warranty. This keyed alike (one key works both locks) set comes with two identical locks and four keys. It features the NEW Push To Lock Security - simply push the pin into the swivel locking head, it's not necessary to turn the key. 5/8" diameter pin fits 2" receiver tubes, Class III/IV. 10,000 lb load rated. The shaft's length is exactly 2-3/4" long. Use this listing when purchasing even quantities of keyed alike hitch locks. You may purchase up to a quantity of eight. When needing an odd quantity you may purchase a single keyed alike in our Amazon store front “LocksChocksTiedowns” by clicking on our company logo. For quantities greater than eight please inquire, and we can normally have them in a couple of days.