I've been trying to mount something to the wall, but I'm running into a frustrating issue with my screws. No matter what I do, they go in almost all the way but won't seat that last bit. I'm using #10 screws that are 1 3/4" long, and they have about 3/4" of shaft without threads. I've tried without a pilot hole and with one, but it doesn't seem to help. I'm out of ideas and could use some assistance!
3 Answers
Not enough thread contact is likely the problem here. Even when you had the screws going into the studs, if there's not enough thread grabbing onto the material, they won't pull in properly. Countersinking your pilot holes a bit more might just do the trick!
You might be trying to use screws that are too large for the setup. Consider tapering your holes a bit or finding screws with a shorter unthreaded portion. If the screws are too wide or too long for your application, it could be causing the issue!
It sounds like the problem is that your screws have too much unthreaded shank before the threads begin. That 3/4" of shank is just spinning in the wood the moment it reaches the 1x2's thickness, and it doesn't have enough grip to pull the screw head in deeper. You might want to use a countersink bit to make room for the screw head. Also, if you're fastening into wood, make sure you have some solid backing to help pull the screws in all the way. Check out some countersink bit options for better results!