Schlage B660 Grade 1 Cylinder x Thumbturn Deadbolt

Schlage B660 Grade 1 Cylinder x Thumbturn Deadbolt

Function: Deadbolt thrown or retracted by key outside or thumbturn inside.

Strong and Secure:

• Solid sintered steel bolt with hardened steel anti-saw pin is thicker than most Grade 1 deadbolt offerings
• Metal dustbox anchors deep to reinforce wood door frames with three 3" screws to protect against kick-in attacks
• Free spinning, broadly angled cylinder collar resists wrenching and prying
• Removeable security shield protects bolt from ice-pick attack through the door
• Hardened steel ball-bearings protect mounting bolts from drill attack (Torx screw packs also available)
• Fixed backset strengthens lock against tampering (adjustable option available)
• UL 437 listed option resists drilling and physical attack on the cylinder (B800 only)
• UL 10C 3-hour fire rated as auxiliary locks

Certifications:

• ANSI/BHMA A156.5 Grade 1 certified with Conventional cylinder (FSIC is Grade 2; SFIC is Grade 3)
• UL 10C listed, 3-hour fire rated as auxiliary locks for A label single doors, 4' x 8'
• UL 10B listed for neutral pressure doors
• UL 437 listed (B800 Series only)
• ADA compliant thumbturn design
• BAA (Buy American Act) compliant product