Are there such bolts with nuts for outdoor use??

[JanneSjo]

in some furniture, there is a metal pin "sargsprint" which has a threaded hole in the middle "on the length side of the pin." The metal pin, which acts as a nut, is inserted into one furniture piece, then a bolt (often with hex key) is screwed from the other furniture piece so that both pieces are pulled together.

the fastening becomes strong (although it may sometimes need retightening).

found image at Beijer

I would like to find something similar for outdoor use to attach a crossbar 45x45 to a standing post 70x70.

Does anyone know if it exists?

Has anyone screwed together pressure-treated posts with cross braces using such methods?

 

[anaitis]

I've never seen it. But you can make something similar yourself. Buy a brass rod of suitable diameter (maybe 10 - 12 mm), drill holes and thread! Cut to lengths - done....

 

[JanneSjo]

I was thinking of a screw diameter of 6-10 mm, so I might need a thicker rod in that case.

If you screw in an ordinary bolt like a carriage bolt (but with a screw head), will there be galvanic corrosion, or can brass and regular outdoor bolts work together?

 

[anaitis]

You should probably use stainless screws.