The lag bolts are 3/8″x 1.5″, and be sure to go back with stainless steel. Hardware store should have them. Yes the bunks are all wood and BassCat uses a wood sealer on them. If you put a small amount of all purpose adhesive on the threads of the lag bolts, they wont vibrate out again.Last edited by Jewalston on November 22nd, 2007, 1:34 am, edited 1 time in total.James