What kind of screw would you use to fix a squeaky floor joist under carpet?
Answer Trim screw
Because trim screws have a smaller head than most other screws, they're ideal for using on fabrics and for fine carpentry applications. Unlike a screw with a larger head, such as a wood or masonry screw, trim screws would not cause the carpet to pucker.
Asked by WerdNerd789 · Last updated 5 years ago · 7.5K views · SOURCE