Again, if you use the proper size screws, nylon bolts will cause less damage than rubber bands. If you do like John buckner said, use dowels in front and bolts in the back, they will usually cause less damage in a crash than rubber bands do. Two 6-32 nylon bolts in the aft end will hold to 100 pounds (10 G's on a 10 pound model) yet will shear with a 30 pound side load. Try to do that well with rubber bands in any combination. Now, that is 10 G's at the bolts but you have a big leverage advantage besides, would no doubt hold to at least 20 G's. Now, if you are using 1/4X20, you will get damage, they shear at 200 pounds yet only have 150 pounds tensile strength. However, as mentioned above, you must design this into the airframe, both at the wing and at the fuselage to properly take the loads. You can not just put holes in a wing designed for rubber bands and expect bolts to hold.