New keyed surface mounted extra heavy duty deadbolt lock (or drop bolt) is great for locking revolving and sliding doors! Will work for many different types of installations such as a manual lock down for man trap or inter lock doors."

Aluminum body with a stainless steel 5/8 inch round bolt - total length of bolt in and out of body is 1 9/16 inches. Takes standard one inch mortise cylinder with Adams rite cam(included with a Yale Y1 or 999 keyway and 2 keys). Can easily be keyed into an existing key system by just changing the cylinder. Very heavy duty.