Review on LATCH.IT RV Flush Latch Lock 2 Pack Black Flush Slam Latch Flush Mount Latch 100% Metal Boat Latch Heavy Duty RV Boat Lid Lock Fits Lock Holes W/ Diameter Of 2” & Door Thickness Up To 0.5”! by Dave Hess

These are all steel, and whoever designed them, made sure to take finger comfort, into consideration. They have groove spots for where your finger is, when you use it. So, no sharp angles! Each comes with its own screw set, for different thicknesses in materials. Set of short screws and longer screws. With washers and lock washers. It really is, a complete set. I can’t stress enough, how good the ergonomics are on these. Someone, did an awesome job, with the design! Super comfortable, while using. Oh, they also designed a nub for if you were inside! So, you can open these, from the inside, too! Another thing, I noticed is when you use the inside one, the outside latch doesn’t drop. Because it’s secured by its own spring. Even if you have it upside down, it won’t drop the handle. I thought that was a nice feature. Because most latches, would move the outer handle, when you use the inner handle. "Or just let the outer handle drop” so, this is really good quality.