Cantilevel brackets are used for joining of wood elements zero. The fittings are easy to install and requires only a perpendicular cutting off the beam.
See example in home construction
The timber jaw washer is used to increase the load capacity when wood constructions are bolted together.
The washer’s teeth work to prevent shear between the the surfaces that are bolted together. The screw/bolt shall be mounted in the center hole and should be maximum 1mm smaller in diameter than the hole. The double timber jaw are used where there is a timber to timber connection and the single one are used between timber and other materials.
Hot dip galvanized steel.