I have purchased a screws and plug set from IKEA. However, I want to secure a bookshelf on a stud.
May I use the screws from the set? Is there any difference between screws with anchors and wood screws?
Anchor screws and those designed specifically for wood have very similar (if not identical) thread pitch. In fact, anchors often ship with standard pan-head wood screws. I've used them interchangeably many times.
The critical concerns are diameter (larger diameter offers substantially more holding power) and length.