Was thinking about hanging our tv in the bedroom on a wall mount. The lag screws to hold the mount are long enough to hang my hat on the excess on the outside. What size screws are big enough to hold ...
I tossed the cheap lags that came with my mount and went with grade 5 bolts and nylock style nuts on the back. Grade 5 are the decent bolts at your local big box store, not the cheap stuff and not the grade 8 expensive stuff. The bolts were just long enough to engage the nylon portion of the lock nut.