Description
Grade 1: The Starting Point in Advanced Lock Solutions
Schlage® proudly unveils the upgraded ND Series Grade 1 cylindrical lock. Surpassing industry-leading BHMA Grade 1 standards, this innovative redesign incorporates advanced springcages, levers, and latches to enhance strength, performance, and reliability.
Enhanced Security and Durability
- Resists access with a minimum lever torque of 3,100 in-lbs (2.6 times the BHMA standard, for general abuse resilience)
- Prevents access with a lever pull strength of at least 1,600 lbs (8 times the BHMA standard, against pry-bar attacks)
- Withstands at least 100 vertical impacts (20 times the BHMA standard, for sledgehammer resistance)
Superior Performance
- Maintains near-zero droop and wobble beyond 16 million cycles (exceeding the BHMA standard by 16 times) without relying on set screws or O-rings
- Ensures secure latch retraction with up to 200 pound preload (4 times the BHMA standard) for optimal functionality in warped and preloaded doors
Unmatched Reliability
- Built with cast steel spindle construction for durability exceeding 16 million cycles
- Successfully passed rigorous Schlage testing, including lever-snap and abusive cycling challenges












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