Spring Door Holder C10091 7/16" square bolt

7/16" square bolt

You would normally order one electrified hinge and two (or more) non-electrified hinges per door

Hinge leaves are 5/64" thick (5/16"" at the thickest point)

Wheel has a steel center and is made from solid rubber

Spring Door Holder C10091 7/16" square boltThis product keeps doors in the open position. It is made up of two parts, a solid brass post and plated steel keeper. After installation the door holder allows 2 5 8" clearance between the surface of the door and wall. Note: The top hole on the keeper is not large enough for the supplied screws to fit through. This hole is there for installation purposes only and is where you insert the screw driver to attach and remove the wood screws. See links