Ansi Grade 2 UL 3H Fire Rated Commercial Heavy Duty Classroom Door Lever Lockset, ADA, Matt Black Finish (3 Sets Key Alike)

SUMBIN Commercial Lock Superior Performance & Compliance: Professional-Grade Commercial Locking Solutions For facility managers, architects, and builders, specifying the correct door hardware is a critical decision impacting security, safety, accessibility, and long-term operational costs. Our portfolio of commercial grade​ locking solutions is engineered to deliver uncompromising performance in high-traffic environments. Every product, from a robust heavy duty door lock​ to a code-specific classroom door lock, is designed to meet rigorous standards. We proudly offer grade 2​ certified locksets as a cornerstone of our range, providing an optimal balance of enhanced security, superior mechanical durability, and commercial-grade construction that surpasses residential builds for demanding daily use. Security and life safety are non-negotiable in commercial design. Our fire rated lock​ systems are integral to passive fire protection strategies. These assemblies, including compatible cylindrical lock​ and lever lockset​ options, are tested to maintain the integrity of fire-rated doors and frames, helping to compartmentalize hazards. Many models carry the trusted UL lock​ designation, providing verified evidence of compliance with stringent safety standards. Beyond fire safety, we offer a complete suite of function-specific locks tailored to diverse operational needs. The storeroom lock​ secures supply closets and utility rooms, remaining locked externally but allowing free egress internally. The privacy door lock​ is ideal for restrooms or private offices, while the passage door lock​ provides a non-latching function for interior corridors. The classroom door lock​ addresses modern security protocols, allowing teachers to lock the door from the inside for safety while ensuring the lever is always free to exit, meeting both security and life-safety codes. Durability is engineered into every component. Our commercial door lever set​ and door lever set​ products feature reinforced levers constructed from solid materials like forged brass or stainless steel, resisting leverage-based attacks and built to withstand millions of cycles. The internal mechanism of our commercial door lock​ and cylindrical lock​ designs are precision-machined for smooth, reliable operation year after year, minimizing maintenance downtime. This heavy duty door lock​ construction ensures that our hardware performs consistently, whether securing a main entry with a commercial door lever set​ or managing access throughout an office with various lock functions. By choosing our commercial grade, grade 2​ and higher solutions, you invest in more than just a door lock; you invest in a system that enhances building security, ensures regulatory compliance, and delivers a demonstrably lower total cost of ownership through legendary durability and reliability for any commercial, educational, or institutional application.

• 1/Professional-Grade Security & Durability:​ Engineered to rigorous commercial standards, this Heavy Duty Door Lock​ meets ANSI Grade 2​ and BHMA Grade 2​ certification, guaranteeing exceptional strength and performance for high-traffic environments. Its robust construction and Commercial Grade Lock​ components are designed to withstand millions of cycles, offering long-term reliability in offices, schools, and retail spaces. This Commercial Door Lock​ is the cornerstone of a dependable security system.
• 2. Certified Fire & Life Safety Compliance:​ As a Fire Rated Lock​ and integral Fire Rated Door Hardware, this product is rigorously tested to meet UL 10C​ and UL 10B​ standards, ensuring reliable performance in a fire emergency. It qualifies as part of a 3 Hour Fire Rated Lock​ assembly, helping to maintain the integrity of fire-rated door openings and providing vital protection as part of your building's Fire Exit Hardware​ and overall life safety strategy.
• 3. Versatile Function Set for Any Commercial Need:​ This series offers a comprehensive selection of lock functions to suit diverse security policies. Choose from Storeroom Lock​ (locked outside, free exit inside), Privacy Door Lock, Passage Door Lock, or specialized Classroom Function Lock, all available in matching Cylindrical Lock​ or elegant Lever Lockset​ designs. Whether you need a Door Lever Set​ for accessibility or a traditional knob, it provides a cohesive look and functional solution.
• 4. Universal Fit & Easy Installation:​ Designed for straightforward retrofit or new construction, this Commercial Door Lever Set​ and Cylindrical Lock​ are built to industry-standard preparations. The UL Listed Lock​ offers easy installation on standard wood or metal doors, making it a versatile upgrade for facility managers looking to enhance security or replace outdated hardware across their property with a professional-grade Door Lock​ system.
• 5. Superior Build Quality for Lasting Performance:​ Beyond basic functionality, this Door Lever Set​ is constructed from premium, corrosion-resistant materials like solid forged brass or stainless steel. The internal mechanism ensures smooth, reliable operation, while the durable finish resists wear and tampering. Offering a clear step up from lower-grade options, this lock delivers the trusted security, Commercial Grade​ durability, and professional aesthetics required for any serious institutional or business application.