Construction Databook

Finish hardware selections and specifications span a wide range of functions, materials of construction and decorative requirements. The information contained in this section touches on hardware mainstays: locksets, latchsets with trim and cylinders, hinges (butts), panic devices, and informative specification tables. Although much of this information was furnished by two manufacturers, it remains very much generic in nature.
The butts are available in a wide range of metals

These butts have two equal square-edged leaves; one is mortised into the door and the other into the farme. It is available in standard, heavy, or extra heavy weight.

These butts have two equal leaves; one is square-edged and the other is bevel-edged; the square edge is mortised into the frame, the bevel edge is surface mounted on the door. It is available in standard and heavy weight.

These butts have two equal leaves; one is square edged and the other is bevel edged; the square edge is mortised into the door edge and the bevel edge is mounted on the frame. It is available in standard and heavy weight.

Two bevel-edged leave butts are of unequal size; one is mounted on the frame, the other on the door.
All of the above butts are general available in sizes referring to their height: 4 1/2" (11.43 cm), 5" (12.7 cm), and 6" (15.24cm).

Swing clear/full mortise are also avaliable in half-surface, half-mortise, and full-surface configurations. These types of butts provide an unobstructed...