Kwikset 660 Single Cylinder Deadbolt with SmartKey, Polished Antique Brass Easy Track EMI/FRI noise filters

EMI/FRI noise filters

Great incubator for hobbyists and for educational purposes

Four blades per box

5-Ply construction

and the bluish tint makes the light visible in direct sunlight

Kwikset 660 Single Cylinder Deadbolt with SmartKey, Polished Antique Brass Easy Track EMI/FRI noise filtersRound corner adjustable latch (RCAL) with round corner strike (RCS) and interchangeable for 2 3 8 In. or 2 3 4 In. backsets to fit all standard door preparations. SmartKey Security protects against advanced break in techniques and allows you to re key your lock yourself in seconds. Key retracts bolt from exterior, turn piece operates bolt from interior.