I'm trying to build an enclosure that will have pea gravel inside of it, using 4" by 4" landscape timbers. I have 2 12' long timbers on the sides, and the ends are each a single 10' timber. Holding the sides and ends together is easy - drill a hole, then screw a lag bolt in to hold them together.
Figuring out how to hold the 2 12' long timbers together on the sides is not as easy. They are parallel, not perpendicular, so I can't just screw them together easily. The only thing I can think of are those metal plates that they pound on with a hammer. Or, if they even make this, I could use my drill and drill holes in the ends that go together. Then, if they have something like a double ended screw, with something that you can put a square wrench on in the middle, I could screw that into the end of one, and then turn the other timber until it screws itself onto the other end of the double ended screw. (hope I'm explaining myself here) Anybody - does this exist, and if so, what is it called?