While this may appear obvious, many hardware materials, especially the sizes, work oppositely.įor reference, the table below shows the actual drywall screw gauge sizes. So, a #6 drywall is thinner compared to a #8 drywall screw. Take note that as the gauge number is increased, so does the diameter of the screw. In most circumstances, #6 or #8 drywall screws are used. The drywall screw diameter is called gauge. Moreover, fine-thread drywall screws are less effective in wood than coarse-thread screws. Because fine threads are self-thread, they are ideal for application with metal. Drywall screws with fine threads are ideal for attaching drywall to metal studs.Ĭoarse threads eat into the metal and never establish appropriate traction. ![]() Drywall Screw Threadsĭrywall screw threads are classified into two categories: fine and coarse, each of which addresses different purposes.įor attaching drywall to metal studs, fine-thread drywall screws work best. In facing walls and ceilings, a 1 ¼ inch size is commonly used for thinner drywalls, and for thicker ones, a size of 1 ⅝ is recommended. This type of drywall is thicker than usual, which is ⅝ thicker, and is used in walls near heater rooms and garages to prevent the fire from spreading. ![]() The thickness can be increased or decreased, but the change is immaterial.įor people doing the DIY installation in thicker drywalls, type-x or fire code drywall must be used. ![]() The standard drywall size is ½ inch thick. You might ask, how long are drywall screws? Generally, the length of a drywall screw varies depending on where you are going to use it.
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