Schlage ND73PD-TLR Tubular Corridor Door Lever Mul-t-lock Euro Profile Double Cylinder (33 x 33mm) It has a 1" diameter

It has a 1" diameter and a 1 1/4" projection

Fixed Dummy Handles

and other glass door manufacturers

Model: 850-8783867

There is 3-way locking chrome bolt work which helps the HS-1000C survive the KSG 30-foot impact test which simulates the safe falling from a collapsing second story onto concrete

Schlage ND73PD-TLR Tubular Corridor Door Lever Mul-t-lock Euro Profile Double Cylinder (33 x 33mm) It has a 1" diameterModel: ND73PTLR613, ND73PTLR605, ND73PTLR625, ND73PTLR606, ND73PTLR626, ND73PTLR619 Keyed Corridor Lock: The corridor function provides push button locking from the inside and by a key on the outside. When locked from the inside by the push button turning the inside lever or closing the door will release the button. When the lever is locked by a key it can only be unlocked by a key. The inside lever is always unlocked providing panic proof exiting.