Yes, took no time at all. Not only are there different screws, there are those on the top that have hex lock out. Don't install them elsewhere. As noted above, full installation details and advice are on other threads in the forum. Please use the search function!
THanks for the responses and pointers to other threads. I'm not sure what happened - I did a variety of searching prior to posting - but for some reason it didn't find those threads. I must have chosen my search words un-wisely.