Tyad, Doug hasn't been back since he posted then, click on his name to check....did you read the two sites listed above you?
Daniel- good article. LOL, my post 24 above, first link has a diagram and explanation same as W.F.- though not as detailed, just scroll down a bit, though I wish one could copy and paste that picture from my link. Any ideas?
Kirk, I don't think the screw thread design makes much difference compared to length- steel stud screws in wood from drywall manufacturers: 188.8.131.52 Type G screws, for attaching gypsum panel products
to gypsum panel products; Type S screws, for attaching gypsum
panel products to light gage steel framing and wood
; and Type W screws, for attaching gypsum
panel products to wood framing members, shall comply with
Standard Specification for Steel Drill Screws for the Application
of Gypsum Board, ASTM C 1002. From: http://www.lafargenorthamerica.com/G...%20English.pdf