Screws used to attach 1/2-inch drywall to wood framing should be long enough to go into the wood at least 5/8 inch. attach a 2x4(92inches long) to my wall horizontally. Then predrill the hole with a 1/8-in. Drywall screws' lengths and gauges, thread types, heads, points, and composition at first might seem incomprehensible. Similar to pegboard but with far greater holding power, a French cleat wall adds heavy-duty storage to a garage, workshop, or kitchen. If you have room for a second or a third screw, just add more. attaching it to 4 studs, 2 screws in each stud. Three screws can hold 240-300 pounds. Use a stud finder to locate the wall studs, and mark their position on the trim piece. The easiest way to increase the amount of weight a screw in a stud can hold is to simply double up. Two screws can hold 160-200 pounds. A screw in a stud can hold between 80 and 100 pounds. You will want to choose a screw that's at least 1 1/4 inches long. When you find a stud, you’ll hear a beeping noise and will know that it’s safe to drill there. [amazon box=”B07F6RZM43,B000IKK0OI,B01HTFHOEI” grid=”3″] Simply place your stud finder flat on the wall and slowly move it along the wall left or right. What size and/or type of screw should i use in a wall stud? Drywall Screw Sizes The drywall screws come in sizes such as 1 inch, 1-1/4 inch, 1-5/8 inch, 2 inch, 2-1/2 inch and 3 inches. Be sure to distribute the weight across as many as you can. I'm building a non structural stud wall. It would be best to have an assorted collection of theses screws since you may never know when you’d need them. (skipping 2 studs in the middle that have electric nearby) I am assuming you are mounting something to the wall of a garage, made from wood studs and some form of sheathing. Drywall screws have become the standard fastener for securing full or partial sheets of drywall to wall studs or ceiling joists. To avoid splitting the trim, countersink the screwhead with a 1/4-in. The MOST important part is to screw into the center of a stud. I've read a few guides which specify different nails (3.75*75 and 4.5*100 - I don't have a brad) and also 3 by 2 or 4 by 2 studs. Withdrawal loads : If the forces will apply pressure that wants to pull the boards straight apart, called withdrawal pressure, be sure that ample screw threads are inserted into the receiving board. Use screws made specifically for attaching drywall to wood. bit. bit. Set the drill clutch “light” so that the screw doesn’t strip out. Learn how here. I have found the studs in the wall (drywall) but I am not sure what kind of screws would be best to attach the L Bracket to the wall. These screws have large, coarse threads that give them a lot of gripping power in the wood. I know this is basic but I am a newbie to DIY :) Please Help :) I am trying to hang a book shelf on my wall. Kitchen wall cabinets screwed to wall studs is one example of lateral or sheer pressure. These are small, handheld devices that can be run along the wall to quickly locate a stud. Game plan.