Design Hardware 316/116 HD Heavy-Duty Arm with Dead Stop

Parallel arm mounting only. The 316/116 HD arm is built for the closer body mounted on the pull side of the door with the arm running parallel to the face, so it will not convert a regular arm or top jamb install. If you need a regular arm assembly instead, the Corbin Russwin 688F77 is a regular arm with hold-open and the 688F95 is a regular arm for top jamb mounting.

The dead stop is an auxiliary stop built into the arm that limits how far the door can swing, which protects the closer and the door in high abuse areas. It is removable, so if the opening already has a floor or wall stop you can take the auxiliary stop off and still use the arm's T-turn hold open function.

The Corbin Russwin 688F77 is a complete closer arm with hold-open. The difference that decides the job is mounting: the Design Hardware 316/116 HD arm is a parallel arm only assembly with a T-turn hold open function and a removable auxiliary dead stop, built from forged solid steel for high abuse openings, while the 688F77 is a regular arm with hold-open. If the closer body is mounted parallel arm on the push side, the Design Hardware arm is the one that fits the geometry.

The Design Hardware 316/116 HD heavy-duty arm is a parallel arm only assembly, so it will not serve a top jamb installation. The Corbin Russwin 688F95 is a complete closer arm for regular arm, top jamb mounting. Confirm the arm matches the closer body you already have on the door before ordering.

No, they address different issues. The Design Hardware 316/116 HD arm is the linkage that holds the door open, using a T-turn hold open function with a removable auxiliary stop. A drop plate such as the Corbin Russwin 188F65 or 597F58, both rated for a 1-3/4 inch door, is a mounting adapter that lowers the closer body when there is not enough head frame face to mount it. If your closer will not land on the frame, you need the drop plate; if you need the door to stay open or to stop at a set point, you need the arm.

The Design Hardware 316/116 HD arm is intended to hold doors open in non UL fire rated applications, so it is not the choice for a fire-rated opening that must self-close and latch. For a fire door you want a non hold-open arm; the Corbin Russwin 688F95 is a regular arm, top jamb assembly without a hold-open function, though it is a regular arm rather than parallel arm mounting. Match the arm to both the mounting on the door and the code requirement for the opening.

Neither. The 316/116 HD arm is non-handed, so one part covers both left and right hand doors. That makes it easier to stock a single spare for a building with openings swinging both directions.

It uses a T-turn hold open. You open the door to the hold position and turn the T on the arm to set it, then turn it back to release and let the closer take over. There is no need to reset anything at the closer body.

That is what it is built for. The arm is forged solid steel and rated heavy duty, intended for high use and high abuse openings, with the removable auxiliary stop taking the impact of over-swing rather than the closer body.

Machine screws, wood screws and self-tapping machine screws ship with the arm, so it covers a hollow metal frame, a wood door or an aluminum application without a separate fastener pack.