All door concealed turn latch knobs and covers are in stock for fast delivery. We offer them in a chrome plated or cast stainless steel finish. concealed turn latch knob and covers will come with the security screws if needed. We carry most manufactures in stock, be careful most manufactures look the same but are not. Most manufactures have a name on the cover plate which goes on the outside of the door(1-1/2" diameter chrome plated or stainless steel). Their should also be some numbers on the inside of the latch knob and cover plate, those numbers should be on our website in the search.