16mm Wood Tee Connector

My initial post was a corner connector, this tee was requested by someone.
I have used these fittings for retrofitted shelving in the back of our kitchen cupboards I made them as it was difficult to screw on the inside of the cupboard and to get the assembled shelving into the cupboard was impossible. Although I have allowed for screws in the fitting I didn't put any in the brackets have held the shelving together.