Doormerica DB860 Double Cylinder Heavy Duty Deadbolt - Grade 1
 
Engineered for maximum security and durability, the DB860 Series deadbolts are tested to exceed 250,000 operational cycles, meeting ANSI/BHMA A156.36 Series 600 Grade 1 strength and operational requirements. Designed for both residential and commercial applications, these deadbolts feature 3” steel screws with an exclusive concealed wood frame reinforcer to protect against kick-in attacks, making them ideal for wood doors.
The 1” throw, high-strength deadbolt includes a hardened steel roller to resist sawing, while the concealed screw design on double-cylinder models enhances tamper resistance. The standard dust box provides deep anchoring, added strike strength, and space for a true deadlatch.
 
Specifications:
Handing: Non-handed
Door Thickness: 1-3/8” – 1-3/4”
Backset: 2-3/4” standard
Faceplate: 1-1/8” x 2-1/4” standard
Deadbolt: 1” throw, saw-resistant hardened steel roller inserted
Strike: 1-1/8” x 2-3/4” metal & wood strikes with reinforcement (supplied standard)
Cylinder: 5 & 6-pin solid brass “Schlage C” keyway, 2 brass keys per lock
Keyways: Available for most major manufacturers (factory lead time)
 
Options:
SFIC/LFIC interchangeable core & high-security cylinders
SFIC compatible (6 or 7-pin Best style)
LFIC compatible with Schlage 23-030 cylinder
Master keying, grand master keying, and construction keying
 
Functions:
Double Cylinder (DB860): Operated by key on both sides; bolt deadlocks when fully thrown.
 
Code Compliance:
ADA barrier-free compliant
UL listed for USA & Canadian safety standards (3-hour doors)
Meets UL 10C & UBC 7-2 (1997) Positive Pressure requirements
 
Warranty: Limited Lifetime Warranty