Not exactly. mine has the white nylon screws as well. its difficult to explain with out pictures, but if you havent had any issues then im guessing your doesnt have the same "issue" as mine. i will try to upload some pictures tonight if i was unsuccessful in squeezing the parts closer together. But basically another way to explain it is if you look at the slide from the front, does the vertical elements (the "Tilt catches") go straight up or do they go out in a V-shape. Mine is V-shaped.Mine have a nylon stopper screw that prevent the slide from coming out completely. I think I can still roll past the tilt catch a bit, though. Is that what you're asking?