Will do the job....
You can't expect to screw one place and the squeak go away. It might take up to 30 screws...or even more, but if you pay attention to each spot, YOU WILL ELIMINATE THE NOISE. I'm a Realtor and I recommend this product A LOT.  My sellers always come to me and say, "I sure wish I had known about these 4 years ago when we moved in."
Rating: 5 stars