These use cover plates over the screw mounts, which use set screws for the final install (and on knob sets as well). They do supply an allen wrench and - smartly - a bunch of spare set screws, however. While they are attractive looking, I find this kind of construction overly complex - other (admittedly more expensive) brands I've used have less complex assemblies. The overall fit, finish, and instructions, and packaging are excellent - no complaints there. The one 'beef' I have is that the striker plate (the part in the door) has rounded corners, rather than more normal rectangular corners - which adds a LOT of complexity when it comes to chiseling out the recess for it. A simple rectangular latch would have been SO much simpler to install (in my doors). Finally, once installed - and this MAY be due to my particular door install - the action seems somewhat high in friction; the knob does not operate with low effort or with smoothness (low effort is desireable for a round knob, you'd think!) The other (more) premium latches/knobs I've used operate in a much more 'buttery' manner. And that may loosen up with use. I have another, differnt style, latch set from the same manujfacturer to install yet, I'll update this comment when I've completed that (review). Oh, and this is a strictly a passage latch - no 'hidden' lock settings. Otherwise, I'm pretty impressed, esp for the cost.