The Glynn Johnson 410 series Improved design allows for simple field changing of functions to compensate for changes in user requirements.

Hold Open
Hold-Open model feature a rugged, automatic hold-open. The hold-open mechanism has been cycled in excess of the 250,000 cycles required for a Grade-1 holder, providing an automatic, adjustable hold open when the door reaches the template degree of hold open.

Friction Hold-Open
Friction hold-open models provide an convenient multi-port hold-open mechanism, permitting the door to be held open at various degrees. The tension on the friction mechanism is adjustable.

Stop Only
The stop-only models offer a smooth and rugged shock absorbing mechanism designed to protect door and frame.

Concealed track mounts to a metal doors top rail or mortised into top of wood doors.