Search results for: 'threshold holder bolt 4040'

The Norton Door Closer 7700 Series Power Track combine the functions of a single point electromechanical door holder with the proven reliability of a 7700 Series Door Closer. The track assembly contains an arm slide and solenoid operated hold open mechanism and is available with or without an integral smoke detector. The closer is mounted on the door. The Power Track and hook-up box are mounted to the frame face for pull side installations or the frame soffit for push side installations.
Two versions, the Master Unit (PTDO) and the Support Unit (PTO). The PTDO has an integral smoke detector. The PTO can be plugged into the PTDO or into your existing fire alarm system. Both units can be mount pull side of the closed door, or the push side, please specify when ordering. Specify voltage (24 volt or 120 volt) and color (aluminum or dark brown). Dark Brown is a 3 week lead time, Aluminum is in stock.

The PTDO Master Unit is no longer available, they were discontinued in the 2024.

The Norton / Yale Door Closer 7701-3 Hold Open Arm is the standard hold open arm shipped with Norton and Yale Door Closers.   It is known as a Friction Hold Open, because as the arm rotates it tightens down two plates together.   Adjusting the large hex bolt on the Hold Open Assembly determines where the arm will hold open.  This part has had a couple of numbers over the years 7701-3, 1620-3 for Norton and 400-3 for Yale.