Standard Duty Double Cylinder Grade-3 Deadbolt, Black This deadbolt is standard replacement for most residential construction and meets ANSI/BHMA grade-3. These deadbolts feature solid brass cylinders, round corner adjustable latch that fit most doors, a full 1-throw deadbolt, an ADA turn piece and rich satin stainless finish. These locksets are manufactured to the highest standards using the finest materials available..