I've got a bunch of old 4x4" fenceposts that I'm going to build up
to make the walls of some raised beds. Probably put an internal
corner post in and screw/bolt the posts to it from the inside so
that screw/bolt heads are hidden.
Any recommendations for coach bolts or screws that will get a
really good "bite"? Looking for something 6-7" long.
I am inclined to suggest threaded rod and nuts, at each corner. Posts
laid so the interlink/ cross alternately at the corners, then a hole
drilled through each post end, so rod can slide through where the posts
meet. So your rod needs to be the full height, with a nut and washer at
each end of the rod. Tighten it up with the corner square and it will
not budge. You could use the same rod process, for a joint midway along
I used these to construct a framework for a gate absolutely brilliant extre
mely easy to drive in with an impact driver no pilot holes and with excelle
nt grip even in end grain. The screw even pulled the head into the timber s
o no protrusions. The people who manufactured my timber garage used the sam
e type of screw.
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