Schlage B581

The B581 turn bolt deadbolt from Schlage is the toughest, most versatile turn bolt deadbolt in the business. Designed to strict quality standards, the B581 Series turn-bolt deadbolt is an auxiliary security lockyou can quickly activate by rotating the turn-piece from the inside.Fits virtually any door, enhances lock strength on the jamb side of the door, and will change forever the way you look at deadbolts. Trim piece supplied. You will want to bore completely through the door when installing.