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The largest-selling deadbolt in America, the 660 series deadbolt provides tough, effective protection at an affordable price.
Single Cylinder Deadbolt for 2-1/8” Bore Hole. Kwikset is America’s #1 selling lock. This Kwikset 660 single cylinder deadbolt is intended for doors with a 2-1/8”" bore hole. This Kwikset deadbolt features a 1” bolt and meets ANSI Grade 3 requirements. Please call (866) 259-8901 if you have any question or would prefer to order by phone. We are here to help!
- Features adjustable latch & deadbolt to fit all standard door preparations
- ANSI/BHMA Grade 3 Security
- Add to a keyed knob or lever for additional security
- Lifetime mechanical and finish warranty
- Door Prep: Cross Bore 2-1/8", Edge Bore 1"
- Backset: Adjustable to 2-3/8" or 2-3/4"
- Door Thickness: 1-3/8" - 1-3/4" (Kit Available for 2-1/4" Thick)
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